COMPACT NSX 100 To 630 A Catalogue
COMPACT NSX 100 To 630 A Catalogue
COMPACT NSX 100 To 630 A Catalogue
Catalogue│2013
Compact NSX
Moulded-case circuit breakers and switch-disconnectors
Measurement and communication
from 100 to 630 A - up to 690 V
Intelligent
outlook
Compact NSX
Next-generation circuit breakers
The Compact™ range of circuit breakers set tomorrow’s standards today
and help exacting organisations achieve more from their LV infrastructure.
An extended breaking capacity, the highest in its class, is available across
the entire Compact NSX range.
Expert technology
A roto-active contact breaking principle provides better limitation and
endurance performance: 23
> Very high breaking capacity in a very small device. new patents pending
confirm the innovative
> Exceptional fault current limitation for extended system life. character of Compact NSX
> 100 kA from 500 to 690 V - The world’s highest rated breaking L 150 kA
capacity for the most demanding electrical environments, and
ideal for high-efficiency, cost-effective 690 V systems. S 100 kA
N 50 kA
The Compact NSX range meets the requirements of IEC 60947-4-1
standards for protection of motors: F 36 kA
III
Integrated monitoring
A Micrologic electronic tripping device with next-generation sensors:
> An ‘iron’ sensor for the power supply to the electronics.
-10%
Monitoring consumption
> An ‘air’ sensor (Rogowski coils) for the measurement part. can help reduce energy
costs by as much as 10%
The originality lies in how Compact NSX measures, processes, and
displays data, either directly on screen, on the switchboard front panel,
or via a monitoring system.
Accessibility of information
To keep costs under control and ensure service continuity,
relevant information must be available in real time:
> A kilowatt-hour meter helps optimise costs and their allocation.
> Event logs and tables, activated continuously, ensure the installed
equipment base operates correctly, so energy efficiency is
maximized.
Installation supervision
Used in conjunction with software, Compact NSX provides users with
a set of parameters and tools to make it easy to monitor installations.
ASIC
Electronics (ASIC),
independent of
measurement, manage
protection functions.
The high degree of
integration in electronics
guarantees protection
against conducted or
radiated interference
Discrimination
Schneider Electric leverages over 30 years of experience and expertise
in discrimination to ensure customers of maximum service continuity:
> The downstream circuit breaker trips as close as possible to the
fault, so that the upstream circuit breaker is not overloaded.
100%
service continuity
Total service continuity
The Compact NSX range offers innovative capabilities to ensure
maximum continuity and uptime for your facilities:
> R, HB1, and HB2 high breaking capacity levels enable the circuit
breakers to withstand demanding fault conditions, staying reliably
in service after 3 faults. After a fault is cleared, remote control
reclosing functionality puts circuits back into operation quickly.
Preventive maintenance
Maintenance indicators provide information on the number
of operations, level of wear on contacts, and total load rates.
Maintenance is now preventive, avoiding faults.
VII
65%
time savings in installation
compared with a classic
monitoring solution
Simple in design
> Installers mount and wire Compact NSX in the same way as Compact NS, which makes
engineering for a retrofit or extension simple.
> Design is simplified using support software that helps you with parameter settings and LTS installation system
planning switchboard installation.
Simple to install
> A Limited Torque Screw (LTS) system ensures proper installation of the tripping device for
added flexibility.
> A transparent sealed flap protects access to tripping device switches and prevents settings
from being changed.
> New electrical control adjustment also has a transparent sealable cover to prevent it from Transparent
being operated accidentally. protective cover
> Pre-wired connectivity and plug-and-play interface modules allow for easy integration with
communication networking.
Simple to use
> Users customize alarms for all parameters, assign them to indicator lights, choose display
priorities, and configure time delay thresholds and modes.
> A wealth of information, including continuously-activated event logs and tables, helps you
ensure that the installed equipment base is operating correctly and that settings are optimized.
IX
Energy Audit
& Measure
building,
industrial process
Passive Active
Energy Efficiency Energy Efficiency
Environmentally responsible
Compact NSX circuit breakers are part and parcel of the Schneider Electric energy efficiency
approach. Designed for easy disassembly and recycling at end of life, Compact NSX complies
with environmental directives RoHS* and WEEE**, and with ISO 14001 standards, thanks to non-
polluting factories.
XI
Presentation 1
Functions
A-1
and characteristics
Installation
B-1
recommendations
Dimensions
C-1
and connection
Glossary G-1
Functions Applications
Compact NSX100 to 630 offers high performance and
DB112087.eps
a wide range of interchangeable trip units to protect G
most applications. Electronic versions provide highly
accurate protection with wide setting ranges and can
integrate measurement, metering and communication
functions. They can be combined with the FDM
switchboard display unit to provide all the functions of
a Power Meter as well as operating assistance.
DB415342.eps
DB112088.eps
Power Meter
page A-22
Compact NSX equipped with Micrologic
5 / 6 trip units offer type A (ammeter) or E
(energy) metering functions as well as
communication. Using Micrologic
sensors and intelligence, Compact NSX
provides access to measurements of all
DB112089.eps
the main electrical parameters on the
built-in screen, on a dedicated FDM
display unit or via the communication
system.
Operating assistance
page A-24
Integration of measurement functions
provides operators with operating
assistance functions including alarms
tripped by user-selected measurement
values, time-stamped event tables and
histories, and maintenance indicators.
DB112090.eps
Communication
page A-28
DB112091.eps
Protection of The Compact NSX range includes a number of b more complete protection against overloads and
versions to protect motor applications: short-circuits with additional motor-specific protection
motors b basic short-circuit protection with MA magnetic trip (phase unbalance, locked rotor, underload and long
(AC 220/690 V) units or the electronic Micrologic 1-M version, start) with Micrologic 6 E-M trip units. These versions
page A-38 combined with an external relay to provide thermal also offer communication, metering and operating
protection assistance.
b protection against overloads, short-circuits and The exceptional limiting capacity of Compact NSX
phase unbalance or loss with Micrologic 2-M trip units circuit breakers automatically provides type-2
coordination with the motor starter, in compliance with
standard IEC 60947-4-1.
Protection of Special applications : For all these applications, circuit breakers in the
The Compact NSX range offers a number of versions Compact NSX range offer positive contact indication
special for special protection applications: and are suitable for isolation in accordance with
applications b service connection to public distribution systems standards IEC 60947-1 and 2.
page A-50 page A-50
b generators page A-52
b industrial control panels page A-54
with:
v compliance with international standards
IEC 60947-2 and UL 508 / CSA 22-2 N14
v compliance with US standard UL 489
v installation in universal and functional enclosures.
b 16 Hz 2/3 systems page A-55
b 400 Hz systems page A-56
Control and A switch-disconnector version of Compact NSX circuit For information on other switch-disconnector ranges,
breakers is available for circuit control and isolation. see the Compact INS/INV (offering positive contact
isolation using All add-on functions of Compact NSX circuit breakers indication and visible break) and Fupact (fusegear)
switch- may be combined with the basic switch-disconnector catalogues.
disconnectors function, including:
b earth-leakage protection
page A-60 b motor mechanism
b ammeter, etc.
Source To ensure a continuous supply of power, some A source-changeover system can be:
electrical installations are connected to two power b manual with mechanical device interlocking
changeover sources: b remote controlled with mechanical and/or electrical
systems b a normal source device interlocking
page A-64 b a replacement source to supply the installation when b automatic by adding a controller to manage
the normal source is not available. switching from one source to the other on the basis of
A mechanical and/or electrical interlocking system external parameters.
between two circuit breakers or switch-disconnectors
avoids all risk of parallel connection of the sources
during switching.
23/05/2013 11:43:05
Compact NSX Functions and characteristics
Introduction
General characteristics of the Compact NSX range A-2
Characteristics and performance of Compact NSX circuit breakers
from 100 to 250 A up to 690 V A-4
Characteristics and performance of Compact NSX circuit breakers
from 400 to 630 A up to 690 V A-8
Compact NSX trip units A-10
Overview of trip units for Compact NSX A-12
Protection of distribution systems
TM thermal-magnetic and MA magnetic trip units A-16
Micrologic 2 and 1.3 M trip units A-18
Micrologic 5 / 6 A or E trip units A-20
Power Meter functions
Electronic Micrologic 5 / 6 A or E A-22
Operating-assistance functions
Micrologic 5 / 6 A or E trip units A-24
Switchboard-display functions
Micrologic 5 / 6 A or E trip units A-26
Compact NSX communication
Communications modules A-28
Networks and software A-30
RSU and RCU utilities A-32
Supervision software A-33
Accessories for Micrologic trip units A-34
Earth-leakage protection
Add-on protection against insulation faults using a Vigi module or Vigirex relay A-36
Motor protection
General information on motor feeders A-38
Motor-feeder characteristics and solutions A-40
Compact NSX motor-feeder solutions A-41
MA and Micrologic 1.3 M instantaneous trip units A-42
Micrologic 2.2 / 2.3 M electronic trip units A-44
Micrologic 6 E-M electronic trip units A-46
Special applications
Protection of public distribution systems with Micrologic 2-AB A-50
Generator protection with Micrologic 2.2 G A-52
Protection of industrial control panels A-54
16 Hz 2/3 network protection
Micrologic 5 A-Z trip unit A-55
Protection of 400 Hz systems A-56
Protection of 440 – 690 V applications A-58
Characteristics and performance of Compact NSX circuit breakers
from 100 to 630 A A-59
Switch-disconnectors
Overview of applications A-60
Switch-disconnector functions A-61
Characteristics and performance of Compact NSX switch-disconnectors
from 100 to 630 NA A-62
Source-changeover systems
Presentation A-64
Manual source-changeover systems A-65
Remote-operated and automatic source-changeover systems
Coupling accessory on base plate A-66
Accessories and auxiliaries
Overview of Compact NSX100 to 630 fixed version A-68
Overview of Compact NSX100 to 630 plug-in and withdrawable versions A-70
Device installation A-72
Connection of fixed devices A-74
Connection of withdrawable and plug-in devices A-76
Insulation of live parts A-77
Selection of auxiliaries for Compact NSX100/160/250 A-78
Selection of auxiliaries for Compact NSX400/630 A-80
Connection of electrical auxiliaries A-82
Indication contacts A-84
SDx and SDTAM modules for Micrologic A-85
Motor mechanism A-86
Remote tripping A-87
Installation recommendations B-1 Rotary handles A-88
Dimensions and connections C-1 Additional measurement and indication modules A-90
Wiring diagrams D-1 Locks A-92
Additional characteristics E-1 Sealing accessories A-93
Catalogue numbers F-1 Individual enclosures A-94
Glossary G-1 Escutcheons and protection collars A-95
A-1
Compact 2 Compact NSX circuit breakers and auxiliaries comply with the following:
b international recommendations:
NSX250 HB2 3 v IEC 60947-1: general rules
Ui 800 V Uimp 8 kV v IEC 60947-2: circuit breakers
Ue (V) Icu (kA) Ics 4 v IEC 60947-3: switch-disconnectors
500 ~ 100 100 v IEC 60947-4: contactors and motor starters
525 ~ 100 100
660/690 ~ 100 100 5 v IEC 60947-5.1 and following: control circuit devices and switching elements;
automatic control components
6 b European (EN 60947-1 and EN 60947-2) and corresponding national standards:
7 v France NF
50/60Hz cat A
v Germany VDE
8 v United Kingdom BS
IEC / EN 60947-2 9 v Australia AS
NEMA AB1 HIC (kA)
480V 100 v Italy CEI
600V 100 b the specifications of the marine classification companies (Veritas, Lloyd's Register
10
of Shipping, Det Norske Veritas, etc.), standard NF C 79-130 and recommendations
issued by the CNOMO organisation for the protection of machine tools.
For U.S. UL, Canadian CSA, Mexican NOM and Japanese JIS standards, please
consult us.
Environment
Compact NSX respects the European environment directive EC/2002/95 concerning
the restriction of hazardous substances (RoHS).
Product environment profiles (PEP) have been prepared, describing the
environmental impact of every product throughout its life cycle, from production to
the end of its service life.
All Compact NSX production sites have set up an environmental management
system certified ISO 14001.
Each factory monitors the impact of its production processes. Every effort is made to
prevent pollution and to reduce consumption of natural resources.
Ambient temperature
b Compact NSX circuit breakers may be used between -25 °C and +70 °C. For
temperatures higher than 40 °C (65 °C for circuit breakers used to protect motor
feeders), devices must be derated (pages B-8 and B-9).
b Circuit breakers should be put into service under normal ambient, operating-
temperature conditions. Exceptionally, the circuit breaker may be put into service
when the ambient temperature is between -35 °C and -25 °C.
b The permissible storage-temperature range for Compact NSX circuit breakers in
the original packing is -50 °C (1) and +85 °C.
A-2
Discrimination
Compact NSX reinforces the discrimination capabilities of the Compact NS range by
applying the rapid calculation capacity of the Micrologic trip units.
Total discrimination is now possible between NSX100 and modular Multi 9 circuit
breakers rated y 63 A (see page A-10).
indication
All Compact NSX circuit breakers are suitable for isolation as defined in IEC
standard 60947-2:
b The isolation position corresponds to the O (OFF) position.
b The operating handle cannot indicate the OFF position unless the contacts are
effectively open.
b Padlocks may not be installed unless the contacts are open.
Installation of a rotary handle or a motor mechanism does not alter the reliability of
the position-indication system.
The isolation function is certified by tests guaranteeing:
b the mechanical reliability of the position-indication system
b the absence of leakage currents
b overvoltage withstand capacity between upstream and downstream connections.
The tripped position does not insure isolation with positive contact indication.
Only the OFF position guarantees isolation.
DB112093.eps
Degree of protection
The following indications are in accordance with standards IEC 60529 (IP degree of
protection) and IEC 62262 (IK protection against external mechanical impacts).
Bare circuit breaker with terminal shields
b With toggle: IP40, IK07.
b With standard direct rotary handle / VDE: IP40 IK07
Circuit breaker installed in a switchboard
b With toggle: IP40, IK07.
b With direct rotary handle:
v standard / VDE: IP40, IK07
v MCC: IP43 IK07
v CNOMO: IP54 IK08
b With extended rotary handle: IP56 IK08
b With motor mechanism: IP40 IK07.
A-3
440 V
500/525 V
660/690 V
DC 250 V (1P)
500 V (2P)
Service breaking capacity (kA rms) lcs % Icu
Suitability for isolation
Utilisation category
Durability (C-O cycles) mechanical
electrical 277 V In/2
In
Electrical characteristics as per NEMA AB1
Breaking capacity (kA) 240 V
V AC 50/60 Hz 277 V
Compact NSX two-pole
480 V
600 V
Protection and measurements
Type of trip units
Ratings In
Overload protection (thermal) long time Ir
threshold
Short-circuit protection (magnetic) instantaneous lm
pickup value indicated for AC (1)
real value for DC
Add-on earth-leakage protection add-on Vigi module
combination with Vigirex relay
Additional indication and control auxiliaries
Indication contacts
Voltages releases MX shunt release
MN undervoltage release
Installation
Accessories terminal extensions and spreaders
terminal shields and interphase barriers
escutcheons
Dimensions (mm) WxHxD
Weight (kg)
Source changeover system
Interlocking systems
(1) The thresholds for TMD and TMG 1-pole and 2-pole magnetic trip units up to 63 A
are indicated for AC. The real DC thresholds are indicated on the following line.
A-4
- b - b -
- b - b -
- b - b -
b b b b b
b b b b b
b b b b b
35 x 161 x 86 70 x 161 x 86 35 x 161 x 86 70 x 161 x 86 35 x 161 x 86
0.7 1.2 0.7 1.2 0.7
- - - - -
A-5
Common characteristics
Rated voltages
Insulation voltage (V) Ui 800
Impulse withstand voltage Uimp 8
(kV)
Operational voltage (V) Ue AC 50/60 Hz 690
Suitability for isolation IEC/EN 60947-2 yes
Utilisation category A
Pollution degree IEC 60664-1 3
Circuit breakers
Breaking capacity levels
380/415 V
440 V
500 V
525 V
660/690 V
Service breaking capacity (kA rms)
lcs AC 50/60 Hz 220/240 V
380/415 V
440 V
500 V
525 V
660/690 V
Durability (C-O cycles) Mechanical
Electrical 440 V In/2
In
690 V In/2
In
Compact NSX250 R.
Characteristics as per Nema AB1
Breaking capacity (kA rms) AC 50/60 Hz 240 V
PB110420_40.eps
480 V
600 V
Characteristics as per UL 508
Breaking capacity (kA rms) AC 50/60 Hz 240 V
480 V
600 V
Protection and measurements
Short-circuit protection Magnetic only
Overload / short-circuit protection Thermal magnetic
Electronic
with neutral protection (Off-0.5-1-OSN) (1)
with ground-fault protection
with zone selective
interlocking (ZSI) (2)
Display / I, U, f, P, E, THD measurements / interrupted-current measurement
Options Power Meter display on door
Operating assistance
Compact NSX250 HB2. Counters
Histories and alarms
Metering Com
Device status/control Com
Earth-leakage protection By Vigi module (3)
By Vigirex relay
Installation / connections
Dimensions and weights
Dimensions (mm) Fixed, front connections 2/3P
(1) OSN: Over Sized Neutral protection for neutrals carrying WxHxD 4P
high currents (e.g. 3rd harmonics).
(2) ZSI: Zone Selective Interlocking using pilot wires. Weight (kg) Fixed, front connections 2/3P
(3) Vigi module is not available for breaking capacity levels 4P
HB1/HB2. Connections
(4) There is no 160 A frame, use 250 A frame with lower Connection terminals Pitch With/without spreaders
amperage trip units for R, HB1, HB2.
(5) 2P circuit breaker in 3P case for B and F types, only with Large Cu or Al cables Cross-section mm²
thermal-magnetic trip unit.
A-6
40 85 90 100 120 150 200 - - 40 85 90 100 120 150 40 85 90 100 120 150 200 - -
25 36 50 70 100 150 200 - - 25 36 50 70 100 150 25 36 50 70 100 150 200 - -
20 35 50 65 90 130 200 - - 20 35 50 65 90 130 20 35 50 65 90 130 200 - -
15 25 36 50 65 70 80 85 100 15 30 36 50 65 70 15 30 36 50 65 70 80 85 100
- 22 35 35 40 50 65 80 100 - 22 35 35 40 50 - 22 35 35 40 50 65 80 100
- 8 10 10 15 20 45 75 100 - 8 10 10 15 20 - 8 10 10 15 20 45 75 100
40 85 90 100 120 150 200 - - 40 85 90 100 120 150 40 85 90 100 120 150 200 - -
25 36 50 70 100 150 200 - - 25 36 50 70 100 150 25 36 50 70 100 150 200 - -
20 35 50 65 90 130 200 - - 20 35 50 65 90 130 20 35 50 65 90 130 200 - -
7.5 12.5 36 50 65 70 80 85 100 15 30 36 50 65 70 15 30 36 50 65 70 80 85 100
- 11 35 35 40 50 65 80 100 - 22 35 35 40 50 - 22 35 35 40 50 65 80 100
- 4 10 10 15 20 45 75 100 - 8 10 10 15 20 - 8 10 10 15 20 45 75 100
50000 20000 40000 20000 20000
50000 20000 40000 20000 20000
30000 10000 20000 10000 10000
20000 10000 15000 10000 10000
10000 5000 7500 5000 5000
40 85 90 100 120 150 200 - - 40 85 90 100 120 150 40 85 90 100 120 150 200 - -
20 35 50 65 90 130 150 85 100 20 35 50 65 90 130 20 35 50 65 90 130 150 85 100
- 8 20 35 40 50 50 75 100 - 20 20 35 40 50 - 20 20 35 40 50 50 75 100
- 85 85 85 - - - - - - 85 85 85 - - - 85 85 85 - - - - -
- 25 50 65 - - - - - - 35 50 65 - - - 35 50 65 - - - - -
- 10 10 10 - - - - - - 10 10 10 - - - 15 15 15 - - - - -
b b b
b b b
b b b
b b b
b b b
b b b
b b b
b b b
b b b
b b b
b b b
b b b
b b b
b b b
b b b
A-7
Common characteristics
Rated voltages
Insulation voltage (V) Ui 800
Impulse withstand voltage Uimp 8
(kV)
Operational voltage (V) Ue AC 50/60 Hz 690
Suitability for isolation IEC/EN 60947-2 yes
Utilisation category A
Pollution degree IEC 60664-1 3
Circuit breakers
525 V
660/690 V
Service breaking capacity (kA rms)
lcs AC 50/60 Hz 220/240 V
380/415 V
440 V
500 V
525 V
660/690 V
Durability (C-O cycles) Mechanical
Electrical 440 V In/2
In
690 V In/2
In
Characteristics as per Nema AB1
Breaking capacity (kA rms) AC 50/60 Hz 240 V
480 V
600 V
Characteristics as per UL 508
Breaking capacity (kA rms) AC 50/60 Hz 240 V
Compact NSX630 R. 480 V
600 V
PB111013.eps
A-8
NSX400 NSX630
Ir = 225 - 500 A Ir = 501 - 630 A
F N H S L R HB1 HB2 F N H S L R HB1 HB2 R HB1 HB2
85 85 85 - - - - - 85 85 85 - - - - - - - -
35 50 65 - - - - - 35 50 65 - - - - - - - -
20 10 20 - - - - - 20 20 20 - - - - - - - -
b b
- -
b b
b b
b b
b b
b b
b b
b b
b b
b b
b b
b b
b b
b b
A-9
With Micrologic electronic trip units, Compact NSX Thermal-magnetic or electronic trip unit?
stands out from the crowd. Thanks to the new
Thermal-magnetic trip units protect against overcurrents and short-circuits using
generation of sensors and its processing capability,
tried and true techniques. But today, installation optimisation and energy efficiency
protection is enhanced even further. It also provides have become decisive factors and electronic trip units offering more advanced
measurements and operating information. protection functions combined with measurements are better suited to these needs.
Micrologic electronic trip units combine reflex tripping and intelligent operation.
Thanks to digital electronics, trip units have become faster as well as more accurate
and reliable. Wide setting ranges make installation upgrades easier. Designed with
processing capabilities, Micrologic trip units can provide measurement information
and device operating assistance. With this information, users can avoid or deal more
effectively with disturbances and can play a more active role in system operation.
They can manage the installation, anticipate on events and plan any necessary
servicing.
A-10
Discrimination
NS400 NSX250 Compact NSX provides maximum continuity of service and savings through an
unmatched level of discrimination:
b given the high accuracy of measurements, overload discrimination is ensured
even between very close ratings
b for major faults, the fast processing of the Micrologic trip units means the
upstream device can anticipate the reaction of the downstream device. The
NS160 NSX100 upstream breaker adjusts its tripping delay to provide discrimination
(100 A) b for very high faults, the energy of the arc dissipated by the short-circuit in the
downstream breaker causes reflex tripping. The current seen by the upstream
device is significantly limited. The energy is not sufficient to cause tripping, so
discrimination is maintained whatever the short-circuit current.
Acti 9
For total discrimination over the entire range of possible faults, from the long-time
pick-up Ir to the ultimate short-circuit current Icu, a ratio of 2.5 must be maintained
between the ratings of the upstream and downstream devices.
Compact NSX100 with Micrologic for total discrimination This ratio is required to ensure selective reflex tripping for high short-circuits.
with Acti 9 devices rated y 40 A or a C60. Better coordination
between protection functions reduces the difference in ratings
required for total discrimination.
DB112155.eps
DB112156.eps
Examples
Micrologic 1.3 Instantaneous only 400 or 630 A Distribution
Micrologic 2.3 LS0I 400 or 630 A Distribution
Micrologic 5.2 A LSI 100, 160 or 250 A Ammeter Distribution
Micrologic 6.3 E-M LSIG 400 or 630 A Energy Motor
(1) AB-Z: except NSX R, HB1, HB2.
(2) LS0I protection is standard on Micrologic 2. To ensure discrimination, it offers short-time protection S0 with a non-adjustable delay and instantaneous protection.
A-11
Compact NSX offers a range of trip units in Type of protection and applications
interchangeable cases, whether they are magnetic,
MA magnetic TM-D thermal-magnetic
thermal-magnetic or electronic. Versions 5 and 6 of the
electronic trip unit offer communication and metering.
Using Micrologic sensors and intelligence, Compact
DB112028.eps
DB112029.eps
NSX supplies all the information required to manage
the electrical installation and optimise energy use.
DB112023.eps
DB112094.eps
Compact NSX400/630
DB112120.eps
DB112038.eps
A-12
DB115635.eps
DB112033.eps
DB112030.eps
DB112032.eps
class
DB112026.eps
DB111401.eps
2.2 Distribution 5.2 A Distribution 6.2 A Distribution 6.2 E-M Motors
2.2 AB Service connection (public and generators and generators
distribution) 5.2 E Distribution 6.2 E Distribution
2.2 G Generators and generators and generators
2.2 M Motors 5.2 A-Z 16 Hz 2/3 networks
DB112025.eps
DB112027.eps
DB111402.eps
Micrologic 6.3 E-M
Ready
>30A >95
Alarm
% T°
380
350 400
320 440 Ir Cl. Isd Iunbal tunbal Ijam tjam Ig tg
280 470
250 500
500
Ir (A) Ii=6500A
A IEC60947-4-1
.5 .6 .7 Class
.4 .8
N 1/A 2/B 3/C test
.3 .9
.2 OFF Mode OK Ir 7.2Ir Isd
Ig (x In)
DB111366.eps
DB112039.eps
Total reactive
Power
Date: 07 May 2007
Time: 10:28:03.01 PM
ESC OK
DB111367.eps
DB112019.eps
0.5
DB112040.eps
Communication to Modbus
DB112019.eps
Test connector
Test connector
Self test
A-13
DB112526R.eps
The capabilities of Micrologic 5 / 6 A and E trip units
come into full play with the FDM121 switchboard
display unit.
When the two are connected via a simple cord with
RJ45 connectors, the combination offers full Power
Meter capabilities and all the measurements required
to monitor the electrical installation.
DB112044.eps
Communication
b Modbus with add-on module
A-14
Communication
b Modbus with add-on module
A-15
DB112046.eps
with performance levels B/F/H/N/S/L.
TM trip units are available in 2 versions:
b TM-D, for the protection of distribution cables
b TM-G, with a low threshold, for the protection of
generators or long cable lengths.
Vigi modules or Vigirex relays can be added to all the
circuit breakers to provide external earth-leakage Circuit breakers equipped with thermal-magnetic trip units are used mainly in
protection. industrial and commercial electrical distribution applications:
b TM-D, for protection of cables on distribution systems supplied by transformers
b TM-G, with a low pick-up for generators (lower short-circuit currents than with
transformers) and distribution systems with long cable lengths (fault currents limited
by the impedance of the cable).
Protection ..............................................................................
Thermal protection (Ir)
Thermal overload protection based on a bimetal strip providing an inverse time curve
I2t, corresponding to a temperature rise limit. Above this limit, the deformation of the
strip trips the circuit breaker operating mechanism.
This protection operates according to:
b Ir that can be adjusted in amps from 0.7 to 1 times the rating of the trip unit (16 A to
250 A), corresponding to settings from 11 to 250 A for the range of trip units
b a non-adjustable time delay, defined to ensure protection of the cables.
Magnetic protection (Im)
Short-circuit protection with a fixed or adjustable pick-up Im that initiates
instantaneous tripping if exceeded.
b TM-D: fixed pick-up, Im, for 16 to 160 A ratings and adjustable from 5 to 10 x In for
200 and 250 A ratings
b fixed pick-up for 16 to 63 A ratings.
Protection against insulation faults
Two solutions are possible by adding:
b a Vigi module acting directly on the trip unit of the circuit breaker
b a Vigirex relay connected to an MN or MX voltage release.
Protection versions
b 3-pole:
v 3P 3D: 3-pole frame (3P) with detection on all 3 poles (3D)
v 3P 2D: 3-pole frame (3P) with detection on 2 poles (2D).
b 4-pole:
v 4P 3D: 4-pole frame (4P) with detection on 3 poles (3D).
v 4P 4D: 4-pole frame (4P) with detection on all 4 poles (same threshold for phases
and neutral).
Protection ...............................................................................
Magnetic protection (Im)
Short-circuit protection with an adjustable pick-up Im that initiates instantaneous
tripping if exceeded.
b Im = In x ... set in amps on an adjustment dial covering the range 6 to 14 x In
for 2.5 to 100 A ratings or 9 to 14 In for 150 to 220 A ratings.
Protection versions
b 3-pole (3P 3D): 3-pole frame (3P) with detection on all 3 poles (3D).
Note: All the trip units have a transparent lead-sealable cover b 4-pole (4P 3D): 4-pole frame (4P) with detection on 3 poles (3D).
that protects access to the adjustment dials.
A-16
A-17
DB112050.eps
levels B/F/H/N/S/L.
They provide:
b standard protection of distribution cables
b indication of:
v overloads (via LEDs)
v overload tripping (via the SDx relay module).
Circuit breakers equipped with Micrologic 1.3 M trip Circuit breakers equipped with Micrologic 2 trip units can be used to protect
units, without thermal protection, are used in certain distribution systems supplied by transformers. For generators and long cables,
applications to replace switch-disconnectors at the Micrologic 2 G trip units offer better suited low pick-up solutions (see page A-52).
head of switchboards. Micrologic 1.3 M trip units are
dedicated to Compact NSX400/630 A circuit breakers. Protection ...............................................................
Settings are made using the adjustment dials with fine adjustment possibilities.
Overloads: Long time protection (Ir)
Inverse time protection against overloads with an adjustable current pick-up Ir set
using a dial and a non-adjustable time delay tr.
Short-circuits: Short-time protection with fixed time delay (Isd)
Protection with an adjustable pick-up Isd. Tripping takes place after a very short
delay used to allow discrimination with the downstream device.
Short-circuits: Non-adjustable instantaneous protection
Instantaneous short-circuit protection with a fixed pick-up.
Neutral protection
b On 3-pole circuit breakers, neutral protection is not possible.
b On four-pole circuit breakers, neutral protection may be set using a three-position
switch:
v 4P 3D: neutral unprotected
v 4P 3D + N/2: neutral protection at half the value of the phase pick-up, i.e. 0.5 x Ir
v 4P 4D: neutral fully protected at Ir.
DB112051.eps
PB103377.eps
Indications..............................................................
Front indications
b Green “Ready” LED: flashes slowly when the circuit breaker is ready to trip in the
event of a fault.
b Orange overload pre-alarm LED: steady on when I > 90 % Ir.
b Red overload LED: steady on when I > 105 % Ir.
Remote indications
An overload trip signal can be remoted by installing an SDx relay module inside the
circuit breaker.
This module receives the signal from the Micrologic electronic trip unit via an optical
link and makes it available on the terminal block. The signal is cleared when the
circuit breaker is reclosed. For description, see page A-83.
50A
Micrologic 1.3 M trip units provide magnetic protection only, using electronic
technology. They are dedicated to 400/630 A 3-pole (3P 3D) circuit breakers or
4-pole circuit breakers with detection on 3 poles (4P, 3D) and are used in certain
Note: all the trip units have a transparent lead-sealable cover applications to replace switch-disconnectors at the head of switchboards. They are
that protects access to the adjustment dials. especially used in 3-pole versions for motor protection, see page A-42.
A-18
Micrologic 1.3 M
Ratings (A) In at 65 °C 320 500
Circuit breaker Compact NSX400 b -
Compact NSX630 b b
S Short time protection
Pick-up (A) Isd adjustable directly in amps
accuracy ±15 %
9 settings: 1600, 1920, 2440, 2560, 9 settings: 2500, 3000, 3500, 4000,
2880, 3200, 3520, 3840, 4160 A 4500, 5000, 5500, 6000, 6500 A
Time delay (ms) tsd non-adjustable
Non-tripping time 10
Maximum break time 60
I Instantaneous protection
Pick-up (A) Ii non-adjustable 4800 6500
accuracy ±15 % Non-tripping time 0
Maximum break time 30 ms
A-19
DB112109.eps
Micrologic 5 / 6 A (Ammeter) or E (Energy) trip units
can be used on Compact NSX100 to 630 circuit
breakers with performance levels B/F/H/N/S/L. They all
have a display unit.
They offer basic LSI protection (Micrologic 5) or LSI and
ground-fault protection G (Micrologic 6).
They also offer measurement, alarm and
communication functions. Protection ……………………………………………
Settings can be adjusted in two ways, using the dials and/or the keypad .
The keypad can be used to make fine adjustments in 1 A steps below the maximum
value defined by the setting on the dial. Access to setting modifications via the
keypad is protected by a locking function displayed on the screen and controlled
by a microswitch . The lock is activated automatically if the keypad is not used for
5 minutes. Access to the microswitch is protected by a transparent lead-sealable
cover. With the cover closed, it is still possible to display the various settings and
DB115566.eps
Measurement
measurements using the keypad.
Display
Settings Overloads: Long time protection (Ir)
Inverse time protection against overloads with an adjustable current pick-up Ir set
Maintenance
using a dial or the keypad for fine adjustments. The time delay tr is set using the
keypad.
Short-circuits: Short-time protection (Isd)
Short-circuit protection with an adjustable pick-up Isd and adjustable time delay tsd,
with the possibility of including a portion of an inverse time curve (I2t On).
Short-circuits: Instantaneous protection (Ii)
Instantaneous protection with adjustable pick-up Ii.
Additional ground fault protection (Ig) on Micrologic 6
Residual type ground-fault protection with an adjustable pick-up Ig (with Off position)
Trip unit menus. and adjustable time delay tg. Possibility of including a portion of an inverse time
curve (I2t On).
Neutral protection
DB115567.eps
Isd fault b On 4-pole circuit breakers, this protection can be set via the keypad:
v Off: neutral unprotected
v 0.5: neutral protection at half the value of the phase pick-up, i.e. 0.5 x Ir
v 1.0: neutral fully protected at Ir
v OSN: Oversized neutral protection at 1.6 times the value of the phase pick-up.
Used when there is a high level of 3rd order harmonics (or orders that are multiples
of 3) that accumulate in the neutral and create a high current. In this case, the device
must be limited to Ir = 0.63 x In for the maximum neutral protection setting of 1.6 x Ir.
b With 3-pole circuit breakers, the neutral can be protected by installing an external
neutral sensor with the output (T1, T2) connected to the trip unit.
Faulty phase Interrupted current Zone selective interlocking (ZSI)
A ZSI terminal block may be used to interconnect a number of Micrologic control
Display of interrupted current.
units to provide zone selective interlocking for short-time (Isd) and ground-fault (Ig)
protection, without a time delay. For Compact NSX 100 to 250, the ZSI function is
available only in relation to the upstream circuit breaker (ZSI out).
PB103377.eps
Indications..............................................................
Front indications
b Green “Ready” LED: flashes slowly when the circuit breaker is ready to trip in the
event of a fault.
b Orange overload pre-alarm LED: steady on when I > 90 % Ir.
b Red overload LED: steady on when I > 105 % Ir.
Remote indications
An SDx relay module installed inside the circuit breaker can be used to remote the
following information:
b overload trip
b overload prealarm (Micrologic 5) or ground fault trip (Micrologic 6).
SDx remote indication relay
module with its terminal block. This module receives the signal from the Micrologic electronic trip unit via an optical
link and makes it available on the terminal block. The signal is cleared when the
circuit breaker is closed.
Note: all the trip units have a transparent lead-sealable cover These outputs can be reprogrammed to be assigned to other types of tripping or
that protects access to the adjustment dials. alarm. The module is described in detail in the section dealing with accessories.
A-20
(1) If the trip units are used in high-temperature environments, the Micrologic setting must take into account the thermal limitations of the circuit breaker. See the
temperature derating table.
(2) For 40 A rating, the neutral N/2 adjustment is not possible.
A-21
In addition to protection functions, Micrologic 5 / 6 trip Micrologic A and E measurement functions are made possible by Micrologic
units offer all the functions of Power Meter products as intelligence and the accuracy of the sensors. They are handled by a microprocessor
well as operating-assistance for the circuit breaker. that operates independent of protection functions.
b display of settings
b measurement functions: Display ...................................................................
v Ammeter (A)
v Energy (E) Micrologic LCD
b alarms The user can display all the protection settings and the main measurements on the
b time-stamped histories and event tables LCD screen of the trip unit.
b maintenance indicator b Micrologic A: instantaneous rms current measurements.
b communication b Micrologic E: voltage, frequency and power measurements and energy metering,
b Refer to: user manual "ULP system" TRV99101. in addition to the measurements offered by Micrologic A
To make the display available under all conditions and increase operating comfort,
an external power supply is recommended for Micrologic A.
It is indispensable to:
b display faults and interrupted current measurements
b use all the functions of Micrologic E (e.g. metering of low power and energy
values)
b ensure operation of the communication system.
PB103365.eps
The external power supply can be shared by several devices. For description, see
page A-34.
PC screen
DB125911.eps
Main Menu
When the Micrologic, with or without an FDM121 switchboard display unit, is
Quick view connected to a communication network, all information can be accessed via a PC.
Metering
Control
Alarms
Measurements ......................................................
Services
ESC OK Instantaneous rms measurements
The Micrologic A and E continuously display the RMS value of the highest current of
the three phases and neutral (Imax). The navigation buttons can be used to
scroll through the main measurements.
FDM121 display: navigation. In the event of a fault trip, the current interrupted is memorised.
The Micrologic A measures phase, neutral, ground fault currents.
The Micrologic E offers voltage, frequency and power measurements in addition to
the measurements provided by Micrologic A.
Maximeters / minimeters
DB112131.eps
DB112132.eps
DB112134.eps
Micrologic E also calculates demand current and power values. These calculations
PQS E can be made using a block or sliding interval that can be set from 5 to 60 minutes in
P 64 kW Ep 14397 kWh steps of 1 minute. The window can be synchronised with a signal sent via the
Q 38 kVar Eq 8325 kVarh
communication system. Whatever the calculation method, the calculated values can
S 51 kVA Es 13035 kVAh
be recovered on a PC via Modbus communication.
Ordinary spreadsheet software can be used to provide trend curves and forecasts
ESC ESC
based on this data. They will provide a basis for load shedding and reconnection
operations used to adjust consumption to the subscribed power.
Power quality
Power. Consumption. Micrologic E calculates power quality indicators taking into account the presence of
Examples of measurement screens on the FDM121 display harmonics up to the 15th order, including the total harmonic distortion (THD) of
unit. current and voltage.
A-22
PB108167.eps
PB103364.eps
Micrologic 5 / 6 integrated Power Meter functions Type Display
A E Micrologic FDM121
LCD display
Display of protection settings
Pick-ups (A) and delays All settings can be displayed Ir, tr, Isd, tsd, Ii, Ig, tg b b b -
Measurements
Instantaneous rms measurements
Currents (A) Phases and neutral I1, I2, I3, IN b b b b
Average of phases Iavg = (I1 + I2 + I3) / 3 b b - b
Highest current of the 3 phases and neutral Imax of I1, I2, I3, IN b b b b
Ground fault (Micrologic 6) % Ig (pick-up setting) b b b b
Current unbalance between phases % Iavg - b - b
Voltages (V) Phase-to-phase U12, U23, U31 - b b b
Phase-to-neutral V1N, V2N, V3N - b b b
Average of phase-to-phase voltages Uavg = (U12 + U21 + U23) / 3 - b - b
Average of phase-to-neutral voltages Vavg = (V1N + V2N + V3N) / 3 - b - b
Ph-Ph and Ph-N voltage unbalance % Uavg and % Vavg - b - b
Phase sequence 1-2-3, 1-3-2 - b b b
Frequency (Hz) Power system f - b - b
Power Active (kW) P, total / per phase -/- b/b b/- b/b
Reactive (kVAR) Q, total / per phase -/- b/b b/- b/b
Apparent (kVA) S, total / per phase -/- b/b b/- b/b
Power factor and cos ϕ (fundamental) PF and cos ϕ, total and per phase - b - b
Maximeters / minimeters
Associated with instantaneous rms Reset via Micrologic or FDM121 display unit b b - b
measurements
Energy metering
Energy Active (kW), reactive (kVARh), apparent Total since last reset - b b b
(kVAh) Absolute or signed mode (1)
Demand and maximum demand values
Demand current (A) Phases and neutral Present value on the selected window - b - b
Maximum demand since last reset - b - b
Demand power Active (kWh), reactive (kVAR), Present value on the selected window - b - b
apparent (kVA) Maximum demand since last reset - b - b
Calculation window Sliding, fixed or com-synchronised Adjustable from 5 to 60 minutes in 1 minute - b - -
steps (2)
Power quality
Total harmonic Of voltage with respect to rms value THDU,THDV of the Ph-Ph and Ph-N voltage - b - b
distortion (%) Of current with respect to rms value THDI of the phase current - b - b
(1) Absolute mode: E absolute = E out + E in; Signed mode: E signed = E out - E in.
(2) Available via the communication system only.
A-23
Alarm settings
Alarms cannot be set via the keypad or the FDM121 display unit. They are set via
communication with the PC. Set-up includes the threshold, priority, activation delay
before display and deactivation delay. It is also possible to reprogram the standard
assignment for the two SDx relay outputs to user-selected alarms.
Alarm reading
Remote alarm indications.
b Reading on FDM121 display unit or on PC via the communication system.
b Remote indications via SDx relay with two output contacts for alarms.
Alarms
Services
Each history record is stored with:
ESC OK b indications in clear text in a number of user-selectable languages
b time-stamping: date and time of event
b status: pick-up / drop-out
Two types of time-stamped event tables
FDM121 display: navigation. b Protection settings.
b Minimeters / maximeters.
Display of alarms and tables
The time-stamped histories and event tables may be displayed on a PC via the
communication system.
DB413153.eps
DB413152.eps
Micrologic A and E have indicators for, among others, the number of operating
cycles, contact wear and operating times (operating hours counter) of the Compact
NSX circuit breaker.
Overpower alarm. Phase unbalance alarm.
It is possible to assign an alarm to the operating cycle counter to plan maintenance.
The various indicators can be used together with the trip histories to analyse the
DB413154.eps
DB413155.eps
ESC OK ESC OK
Management of installed devices
Each circuit breaker equipped with a Micrologic 5 or 6 trip unit can be identified via the
communication system:
b serial number
Alarm pick-up and drop-out. b firmware version
b hardware version
b device name assigned by the user.
Examples of operating-assistance screens on the FDM121 This information together with the previously described indications provides a clear
display unit.
view of the installed devices.
A-24
PB108167.eps
PB103364.eps
Micrologic 5 / 6 operating assistance functions Type Display
A E Micrologic FDM121
LCD display
Operating assistance
Personalised alarms
Settings Up to 10 alarms assigned to all A and E measurements (2) b b - -
Phase lead/lag, four quadrants, phase sequence, display priority selection (2) - b - -
Display Alarms / tripping b b -/b b/b
Remote indications Activation of two dedicated contacts on SDx module b b - -
Time-stamped histories (ms)
Trips Cause of tripping Ir, Isd, Ii (Micrologic 5, 6) b b - b
(last 17) Ig (Micrologic 6) b b - b
Phase fault b b - b
Interrupted current value b b - b
Alarms b b - b
(last 10)
Operating events Event types Modification of protection setting by dial - b - b
(last 10) Opening of keypad lock - b - b
Test via keypad - b - b
Test via external tool - b - b
Time setting (date and time) - b - b
Reset for maximeter/minimeter and energy meter b b - b
Time stamping (date and time, text, status) b b - b
Time-stamped event tables
Protection settings Setting modified (value displayed) Ir tr Isd tsd Ii Ig tg (2) b b - -
Time-stamping Date and time of modification (2) b b - -
Previous value Value before modification (2) b b - -
Min/Max Values monitored I1 I2 I3 IN b b - b
U12 U23 U31 f - b - b
Time-stamping of each value Date and time of min/max record b b - b
Current min/max value Min/max value b b - b
Maintenance indicators
Counter Mechanical cycles (1) Assignable to an alarm b b - b
Electrical cycles (1) Assignable to an alarm b b - b
Trips One per type of trip (2) b b - -
Alarms One for each type of alarm (2) b b - -
Hours Total operating time (hours) (2) b b - -
Indicator Contact wear % b b - b
Load profile Hours at different load levels % of hours in four current ranges: 0-49 % In, 50-79 % b b - b
In, 80-89 % In and u 90 % In
(1) The BSCM module (page A-29) is required for these functions.
(2) Also available via the communication system.
A-25
Micrologic measurement capabilities come into full play FDM121 switchboard display
with the FDM121 switchboard display. It connects to The FDM121 is a switchboard display unit that can be integrated in the Compact
Compact NSX via a simple cord and displays NSX100 to 630 A system. It uses the sensors and processing capacity of the
Micrologic information. The result is a true integrated Micrologic trip unit. It is easy to use and requires no special software or settings. It is
unit combining a circuit breaker and a Power Meter. immediately operational when connected to the Compact NSX by a simple cord.
Additional operating assistance functions can also be The FDM121 is a large display, but requires very little depth. The anti-glare graphic
displayed. screen is backlit for very easy reading even under poor ambient lighting and at sharp
angles.
Main characteristics
b 96 x 96 x 30 mm screen requiring 10 mm behind the door (or 20 mm when the
24 volt power supply connector is used).
PB108167.eps
PB103807-32.eps
b White backlighting.
b Wide viewing angle: vertical ±60°, horizontal ±30°.
b High resolution: excellent reading of graphic symbols.
b Alarm LED: flashing orange for alarm pick-up, steady orange after operator reset if
alarm condition persists.
b Operating temperature range -10 °C to +55 °C.
b CE / UL / CSA marking (pending).
b 24 V DC power supply, with tolerances 24 V -20 % (19.2 V) to 24 V +10 % (26.4 V).
When the FDM121 is connected to the communication network, the 24 V DC can be
supplied by the communication system wiring system (see paragraph "Connection").
FDM121 display. Surface mount accessory. b Consumption 40 mA.
Mounting
The FDM121 is easily installed in a switchboard.
PB103581-31.eps
Connection
The FDM121 is equipped with:
b a 24 V DC terminal block:
v plug-in type with 2 wire inputs per point for easy daisy-chaining
v power supply range of 24 V DC -20 % (19.2 V) to 24 V DC +10 % (26.4 V).
A 24 V DC type auxiliary power supply must be connected to a single point on the
ULP system. The FDM121 display unit has a 2-point screw connector on the rear
panel of the module for this purpose. The ULP module to which the auxiliary power
supply is connected distributes the supply via the ULP cable to all the ULP modules
connected to the system and therefore also to Micrologic.
b two RJ45 jacks.
The Micrologic connects to the internal communication terminal block on the
Connection with FDM121 display unit.
Compact NSX via the pre-wired NSX cord. Connection to one of the RJ45
connectors on the FDM121 automatically establishes communication between the
Micrologic and the FDM121 and supplies power to the Micrologic measurement
functions.
When the second connector is not used, it must be fitted with a line terminator.
A-26
I1 310 A
I
I2 315 A
Five buttons are used for intuitive and fast navigation.
The “Context” button may be used to select the type of display (digital, bargraph,
%
I3 302 A
%
IN 23 A
analogue).
The user can select the display language (Chinese, English, French, German,
% % Italian, Portuguese, Spanish, etc.).
ESC
Screens
Main menu
1 2 3 4 5 6 When powered up, the FDM121 screen automatically displays the ON/OFF status of
the device.
1 Escape
2 Down
3 OK Quick view
4 Up
5 Context Metering
6 Alarm LED
Control
Alarms
Services.
When not in use, the screen is not backlit. Backlighting can be activated by pressing
one of the buttons. It goes off after 3 minutes.
DB112136.eps
DB125910.eps
Firmware: 1.02
Alarms Access to detailed information
Services b "Metering" can be used to display the measurement data (I, U-V, f, P, Q, S, E,
ESC ESC OK
THD, PF) with the corresponding min/max values.
b Alarms displays active alarms and the alarm history.
b Services provides access to the operation counters, energy and maximeter reset
function, maintenance indicators, identification of modules connected to the internal
Product identification. Quick view.
bus and FDM121 internal settings (language, contrast, etc.)
DB112138.eps
DB112139.eps
DB125912.eps
90..100% 3H
ESC ESC
A-27
All Compact NSX devices can be equipped with the Four functional levels
communication function via a prewired connection The Compact NSX can be integrated in a Modbus communication environment. Four
system and a Modbus network interface. functional levels can be used separately or combined.
The interface can be connected directly or via the Communication of status indications
FDM121 switchboard display unit. Four functional This level is compatible with all Compact NSX circuit breakers, whatever the trip unit,
levels can be combined to adapt to all supervision and with all switch-disconnectors. Using the BSCM module, the following information
requirements. is accessible:
b ON/OFF position (O/F)
b trip indication (SD)
b fault-trip indication (SDE).
Communication of commands
Also available on all circuit breakers and switch-disconnectors, this level
(communicating remote control) can be used to:
b open
b close
b reset.
Communication of measurements with Micrologic 5 / 6 A or E
This level provides access to all available information:
b instantaneous values A, E
b demand values E
b maximeters/minimeters A, E
b energy metering E
b demand current and power E
b power quality E.
Communication of operating assistance with Micrologic 5 / 6 A or E
b protection and alarm settings A, E
b time-stamped histories A, E
b event tables A, E
b maintenance indicators A, E.
24 V DC
DB112060.eps
10
10
1.3 m
A-28
DB112083.eps
contains the Modbus address (1 to 99) declared by the
user via the two dials in front. It automatically adapts
(baud rate, parity) to the Modbus network in which it is
installed.
It is equipped with a lock-out switch to enable or disable
operations involving writing to Micrologic, i.e. reset,
counter reset, setting modifications, device opening
and closing commands, etc.
There is a built-in test function to check the connections
of the Modbus interface module with the Micrologic and
FDM121 display unit.
Mounting
The module is mounted on a DIN rail. A number of Modbus interface module.
modules may be clipped one next to the other.
For this, a stacking accessory is available for fast
BSCM module
clip-connection of both the Modbus link and the 24 V
DC supply. Functions
The Modbus interface module supplies 24 V DC to the The optional BSCM Breaker Status & Control Module
corresponding Micrologic, FDM121 display and BSCM is used to acquire device status indications and control
module. Module consumption is 60 mA / 24 V DC. the communicating remote-control function.
It includes a memory used to manage the maintenance
indicators.
Status indications
Indication of device status:
DB112035.eps
BSCM module.
A-29
Automatic
Firewall notification
Nomad
Internet
mode
Site Intranet
Ethernet (TCP/IP/Modbus)
Consultation Consultation
EGX100/300 EGX100/300 RSU RSU
RCU RCU
Modbus Modbus
CCM FDM121
FDM121 FDM121
Ethernet (TCP/IP/Modbus)
Modbus
ULP
A-30
DB112125.eps
Gateway
The gateway has two functions:
b access to the company intranet (Ethernet) by converting Modbus frames
to the TCP/IP/Modbus protocol
b optional web-page server for the information from the devices.
Examples include EGX300 and EGX100.
PE86181r-25.eps
EGX300.
A-31
Two utilities, RSU and RCU, are available to assist in RSU (Remote Setting Utility)
starting up a communicating installation. This utility is used to set the protection functions and alarms for each Masterpact and
They can be downloaded from the Schneider Electric Compact NSX device.
internet site and include a "Live update" function that After connection to the network and entry of the circuit-breaker Modbus address, the
enables immediate updating. software automatically detects the type of trip unit installed.
There are two possible operating modes.
The RCU utility can be used to test communication for all the devices connected to
the Modbus network. It is designed for use with Compact NSX, Masterpact,
Advantys OTB and Power Meter devices. It offers a number of functions.
Mini supervisor
b Display of I, U, f, P, E and THD measurements for each device, via navigation.
b Display of ON/OFF status.
Open and close commands for each device
A common or individual password must first be entered.
RCU: Remote Control Utility for communication tests. When all functions have been tested, this utility is replaced by the supervision
software selected for the installation.
A-32
A simple solution for customers who want to consult the main electrical parameters
of switchboard devices without dedicated software.
Up to 16 switchboard devices are connected via Modbus interfaces to EGX300
Ethernet gateway integrating the functions of a web page server. The embedded
Web pages can be easily configured with just a few mouse clicks. The information
they provide is updated in real time.
The Web pages can be consulted using a standard Web browser on a PC connected
via Ethernet to the company Intranet or remotely via a modem. Automatic notification
of alarms and threshold overruns is possible via e-mail or SMS (Short Message
EGX300.
Service).
PB104807_68.eps
Other software
Compact, Masterpact and Compact NSX devices can forward their measurement
and operating information to special software integrating the electrical installation
and other technical facilities:
b SCADA process control software: Vijeo CITECT
b BMS Building Management System software: Vista.
ION.E software screen. Please consult us.
A-33
Total consumption
To determine the required output current of the 24 V DC power supply, it is necessary
to sum up the currents consumed by the different loads supplied:
Consumption of Compact NSX modules Consumption (mA)
Module
Micrologic 5/6 20
BSCM module 10
FDM121 40
Modbus communication interface 60
NSX cord U > 480 V AC 30
A-34
This pocket battery connects to the Micrologic test connector. It powers up the
Micrologic and the Ready LED. It supplies the screen and allows settings to be made
via the keypad.
Test battery (cat. no. LV434206).
Battery module
PB103833-18.eps
The battery module is a back-up supply for the external power-supply module. The
input/output voltages are 24 V DC and it can supply power for approximately three
hours (100 mA).
units. It is required to power the trip unit when the trip unit is not connected to an
FDM121 display unit or to the communication system. When used, it excludes
connection of an NSX cord.
NSX cord
b For voltage U y 480 V, available in 3 prefabricated lengths: 0.35 m, 1.3 m and 3 m.
b For voltages U > 480 V, a special 1.3 m cord with an insulation accessory is
24 V DC power-supply NSX cord U > 480 V required.
terminal block (cat. no. (cat. no. LV434204).
LV434210).
b A set of cords with RJ45 connectors is available to adapt to different distances
between devices.
Maintenance case
PB103803-27.eps
Included in the maintenance kit, this module tests Micrologic operation and provides
access to all parameters and settings. It connects to the Micrologic test connector
and can operate in two modes.
b Stand-alone mode to:
v supply the Micrologic and check operation via the Ready LED
v check mechanical operation of the circuit breaker (trip using pushbutton).
b PC mode, connected to a PC via USB or Bluetooth link. This mode provides
access to protection settings, alarm settings and readings of all indicators. Using the
Configuration and maintenance module (cat. no. TRV00911). associated RSU software utility, it is possible to store, in a dedicated file for each
device, all the data that can transferred to another device.
This mode also offers operating-test functions:
DB115570R.eps
Test connector
T
TES
110/240 V
A-35
There are two ways to add earth-leakage protection to Circuit breaker with add-on Vigi module
any three or four-pole Compact NSX100 to 630 circuit
breaker equipped with a magnetic, thermal-magnetic (Vigicompact NSX)
or Micrologic 2, 5 or 6 trip unit:
b by adding a Vigi module to the circuit breaker to form b For general characteristics of circuit breakers, see page A-6 and page A-7.
a Vigicompact NSX b Add-on Vigi modules. Earth-leakage protection is achieved by installing a Vigi
module (characteristics and selection criteria on next page) directly on the circuit
b by using a Vigirex relay and separate toroids.
breaker terminals It directly actuates the trip unit (magnetic, thermal-magnetic or
Micrologic).
Earth-leakage relay.
PB108161.eps
Separate toroids.
A-36
earth-leakage protection
Addition of the Vigi module does not alter circuit-breaker characteristics:
b compliance with standards
b degree of protection, class II front-face insulation
b positive contact indication
b electrical characteristics
b trip-unit characteristics
b installation and connection modes
b indication, measurement and control auxiliaries
b installation and connection accessories.
A-37
Detection of overload currents and motor shutdown before temperature rise in the
motor and conductors damages insulation. This function is provided by a thermal-
magnetic circuit breaker or a separate thermal relay.
Overloads: I < 10 x In
They are caused by:
b an electrical problem, related to an anomaly in the distribution system (e.g. phase failure,
voltage outside tolerances, etc.)
b a mechanical problem, related to a process malfunction (e.g. excessive torque) or damage to
the motor (e.g. bearing vibrations).
These two causes will also result in excessively long starting times.
Impedant short-circuits: 10 x In < I < 50 x In
This type of short-circuit is generally due to deteriorated insulation of motor windings or
damaged supply cables.
Short-circuits: I > 50 x In
This relatively rare type of fault may be caused by a connection error during maintenance.
b Locked rotor.
Isolation
and short-circuit protection
b Under-load.
Circuit breaker with b Long starts and stalled rotor.
magnetic protection b Insulation faults.
Motor-feeder solutions
Standard IEC 60947 defines three types of device combinations for the protection of
Power switching
Contactor motor feeders.
Three devices
b Magnetic circuit breaker + contactor + thermal relay.
Two devices
Overload protection
or thermal protection
Thermal protection, b Thermal-magnetic circuit breaker + contactor.
separate or built into
the circuit breaker One device
b Thermal-magnetic circuit breaker + contactor in an integrated solution (e.g.
Tesys U).
Specific or internal
motor protection Additional protection
functions
A-38
A-39
The trip class determines the trip curve of the thermal Trip class of a thermal-protection device
protection device (inverse-time curve) for a motor The motor feeder includes thermal protection that may be built into the circuit
feeder. breaker. The protection must have a trip class suited to motor starting. Depending on
Standard IEC 60947-4-1 defines trip classes 5, 10, 20 the application, the motor starting time varies from a few seconds (no-load start) to a
and 30. few dozen seconds (high-inertia load).
These classes are the maximum durations, in seconds, Standard IEC 60947-4-1 defines the trip classes below as a function of current
for motor starting with a starting current of 7.2 Ir, where setting Ir for thermal protection.
Ir is the thermal setting indicated on the motor rating Trip class of thermal relays as a function of their Ir setting
plate.
Class 1.05 I r (1) 1.2 Ir (1) 1.5 Ir (2) 7.2 I r(1)
5 t>2h t < 2h t < 2 mn 2s<ty5s
10 t>2h t < 2h t < 4 mn 4 s < t y 10 s
20 t>2h t < 2h t < 8 mn 6 s < t y 20 s
30 t>2h t < 2h t < 12 mn 9 s < t y 30 s
(1) Time for a cold motor (motor off and cold).
Example: In class 20, the motor must have finished
(2) Time for warm motor (motor running under normal conditions).
starting within 20 seconds (6 to 20 s) for a starting
current of 7.2 Ir.
t”d The protection settings must effectively protect the motor, notably via a suitable
thermal-relay trip class, but let the peak starting current through.
Ir Id I”d
Typical motor-starting curve
A-40
Compact NSX motor circuit breakers are designed for Compact NSX motor-protection range
motor-feeder solutions using: Compact NSX trip units can be used to create motor-feeder solutions comprising two
b three devices, including an MA or 1.3 M magnetic- or three devices. The protection devices are designed for continuous duty at 65 °C.
only trip unit
Three-device solutions
b two devices including a TM-D or 2 M thermal-
b 1 NSX circuit breaker with an MA or Micrologic 1.3 M trip unit.
magnetic trip unit. b 1 contactor.
They are designed for use with contactors in the AC3 b 1 thermal relay.
utilisation category (80 % of all cases) and they ensure
Two-device solutions
type-2 coordination with the contactor.
b 1 Compact NSX circuit breaker
For the AC4 utilisation category, the difficult conditions
v with a Micrologic 2.2 M or 2.3 M electronic trip unit
generally make it necessary to oversize the protection
v with a Micrologic 6 E-M electronic trip unit. This version offers additional protection
circuit breaker with respect to the AC3 category.
and Power Meter functions.
b 1 contactor.
A-41
MA magnetic trip units are used in 3-device motor- MA magnetic trip units
feeder solutions. They can be mounted on all
DB112110.eps
Compact NSX100/160/250 circuit breakers with
performance levels B/F/H/N/S/L.
They provide short-circuit protection for motors up to
110 kW at 400 V.
Circuit breakers with an MA trip unit are combined with a thermal relay and a
contactor or a starter.
Protection ……………………………………………
Magnetic protection (Im)
Short-circuit protection with an adjustable pick-up Im that initiates instantaneous
tripping if exceeded.
b Im = In x ... is set on an adjustment dial in multiples of the rating:
v 6 to 14 x In (2.5 to 100 A ratings)
v 9 to 14 x In (150 to 200 A ratings)
Protection version
b 3-pole (3P 3D): 3-pole frame (3P) equipped with detection on all 3 poles (3D).
Micrologic 1.3 M trip units are used in 3-device Micrologic 1.3 M trip units
motor-feeder solutions on Compact NSX400/630
DB112106.eps
Circuit breakers with a Micrologic 1.3 M trip unit are combined with a thermal relay
and a contactor.
Protection ...............................................................
Settings are made using a dial.
Short-circuits: Short-time protection (Isd)
Protection with an adjustable pick-up Isd. There is a very short delay to let through
motor starting currents.
b Isd is set in amperes from 5 to 13 x In, as follows:
v from 1600 to 4160 A for the 320 A rating
v from 2500 to 6500 A for the 500 A rating.
Short-circuits: Non-adjustable instantaneous protection (li)
Instantaneous protection with non-adjustable pick-up Ii.
Protection version
b 3-pole (3P 3D): 3-pole frame (3P) equipped with detection on all 3 poles (3D).
Indications …………………………………………
Front indications
b Green “Ready” LED: flashes slowly when the circuit breaker is ready to trip in the
event of a fault.
A-42
Micrologic 1.3 M
Ratings (A) In at 65 °C (1) 320 500
Circuit breaker Compact NSX400 b -
Compact NSX630 b b
S Short-time protection
Pick-up (A) Isd Adjustable directly in amps
accuracy ±15 %
9 settings: 1600, 1920, 2440, 2560, 9 settings: 2500, 3000, 3500, 4000,
2880, 3200, 3520, 3840, 4160 A 4500, 5000, 5500, 6000, 6500 A
Time delay (ms) tsd Non-adjustable
Non-tripping time 10
Maximum break time 60
I Instantaneous protection
Pick-up (A) Ii non-adjustable 4800 6500
accuracy ±15 % Non-tripping time 0
Maximum break time 30 ms
(1) Motor standards require operation at 65 °C. Circuit-breaker ratings are derated to take this requirement into account.
A-43
DB112111.eps
and magnetic protection. They are used in 2-device
motor-feeder solutions on Compact NSX100 to 630
circuit breakers with performance levels B/F/H/N/S/L.
They provide protection for motors up to 315 kW at
400 V against:
b short-circuits
b overloads with selection of a trip class (5, 10 or 20) Circuit breakers with a Micrologic 2.2 / 2.3 M trip unit include protection similar to an
b phase unbalance. inverse-time thermal relay. They are combined with a contactor.
Protection ...............................................................
Settings are made using a dial.
Overloads (or thermal protection): Long-time protection and trip class (Ir)
Inverse-time thermal protection against overloads with adjustable pick-up Ir.
Settings are made in amperes. The tripping curve for the long-time protection, which
indicates the time delay tr before tripping, is defined by the selected trip class.
Trip class (class)
The class is selected as a function of the normal motor starting time.
b Class 5: starting time less than 5 s.
b Class 10: starting time less than 10 s.
b Class 20: starting time less than 20 s.
For a given class, it is necessary to check that all motor-feeder components are
sized to carry the 7.2 Ir starting current without excessive temperature rise during the
time corresponding to the class.
Short-circuits: Short-time protection (Isd)
Protection with an adjustable pick-up Isd. There is a very short delay to let through
motor starting currents.
Short-circuits: Non-adjustable instantaneous protection (li)
Instantaneous protection with non-adjustable pick-up Ii.
Phase unbalance or phase loss (lunbal) ( )
This function opens the circuit breaker if a phase unbalance occurs:
b that is greater than the 30 % fixed pick-up Iunbal
b following the non-adjustable time delay tunbal equal to:
v 0.7 s during starting
v 4 s during normal operation.
Phase loss is an extreme case of phase unbalance and leads to tripping under the
same conditions.
PB103376.eps
Indications ……………………………………………
Front indications
b Green “Ready” LED: flashes slowly when the circuit breaker is ready to trip in the
event of a fault.
b Red alarm LED for motor operation: goes ON when the thermal image of the rotor
and stator is greater than 95 % of the permissible temperature rise.
Remote indications via SDTAM module
Compact NSX devices with a Micrologic 2 can be equipped with an SDTAM module
dedicated to motor applications for:
b a contact to indicate circuit-breaker overload
b a contact to open the contactor. In the event of a phase unbalance or overload,
this output is activated 400 ms before circuit-breaker tripping to open the contactor
and avoid circuit breaker tripping.
This module takes the place of the MN/MX coils and an OF contact.
A-44
Phase unbalance
An unbalance in three-phase systems occurs when the three voltages are not equal in amplitude
and/or not displaced 120° with respect to each other. It is generally due to single-phase loads
that are incorrectly distributed throughout the system and unbalance the voltages between the
phases.
These unbalances create negative current components that cause braking torques and
temperature rise in asynchronous machines, thus leading to premature ageing.
Phase loss
Phase loss is a special case of phase unbalance.
Unbalance of phase currents and voltages. b During normal operation, it produces the effects mentioned above and tripping must occur
after four seconds.
b During starting, the absence of a phase may cause motor reversing, i.e. it is the load that
DB126605.eps
determines the direction of rotation. This requires virtually immediate tripping (0.7 seconds).
Motor-off zone Starting time in compliance with the class (Micrologic 2 M)
For normal motor starting, Micrologic 2 M checks the conditions below with respect to the
1 to 200 s
thermal-protection (long-time) pick-up Ir:
b current > 10 % x Ir (motor-off limit)
b overrun of 1.5 x Ir threshold, then return below this threshold before the end of a 10 s time
delay.
Return If either of these conditions is not met, the thermal protection trips the device after a maximum
Long
start time time equal to that of the selected class.
limit Pick-up Ir must have been set to the current indicated on the motor rating plate.
Long starts (Micrologic 6 E-M)
When this function is not activated, the starting conditions are those indicated above.
Starting When it is activated, this protection supplements thermal protection (class).
time A long start causes tripping and is characterised by:
b current > 10 % x Ir (motor-off limit) with:
b either overrun of the long-time pick-up (1 to 8 x Ir) without return below the pick-up before the
end of the long-time time delay (1 to 200 s)
Overrun
b or no overrun of the long-time pick-up (1 to 8 x Ir) before the end of the long-time time delay (1
to 200 s).
10 % Ir Ir Pick-up Ir must have been set to the current indicated on the motor rating plate.
1.5 Ir (Micrologic 2 M)
or Ilong (Micrologic 6 E-M) This protection should be coordinated with the selected class.
A-45
DB112116
Micrologic 6.E-M is used in 2-device motor-feeder
solutions.
It provides the same protection as Micrologic 2 M:
b short-circuits
b overloads with selection of the same trip classes (5,
10 or 20), plus trip class 30 for starting of machines
with high inertia.
In addition, it offers specific motor-protection functions Protection ……………………………………………
that can be set via the keypad. The protection functions are identical to those of Micrologic 2 M and can be
fine-adjusted via the keypad .
Access to setting modifications via the keypad is protected by a locking function
that is controlled by a microswitch . The lock is activated automatically if the
keypad is not used for 5 minutes. Access to the microswitch is protected by a
transparent lead-sealable cover. It is possible to scroll through settings and
measurements with the cover closed.
Overloads (or thermal), class and short-circuits
The long-time, short-time and instantaneous functions are identical to those of
Micrologic 2 M.
In addition, there is trip class 30 for long-time protection and a setting for self-cooled
or fan-cooled motors ( ).
Ground-fault protection (Ig)
Residual type ground-fault protection with an adjustable pick-up Ig (with Off position)
and adjustable time delay tg.
Phase unbalance or phase loss (lunbal)
This function opens the circuit breaker if a phase unbalance occurs:
b that is greater than the Iunbal pick-up that can be fine-adjusted from 10 to 40 %
(30 % by default)
b following the tunbal time delay that is:
v 0.7 s during starting
v adjustable from 1 to 10 seconds (4 seconds by default) during normal operation.
Phase loss is an extreme case of phase unbalance and leads to tripping under the
same conditions.
Locked rotor (Ijam)
This function detects locking of the motor shaft caused by the load.
During motor starting (see page A-45), the function is disabled.
During normal operation, it causes tripping:
b above the Ijam pick-up that can be fine-adjusted from 1 to 8 x Ir
b in conjunction with the tjam time delay that can be adjusted from 1 to 30 seconds.
Under-load (Iund)
This function detects motor no-load operation due to insufficient load (e.g. a drained
pump). It detects phase undercurrent.
During motor starting (see page A-45), the function is always enabled.
During normal operation, it causes tripping:
b below the Iund pick-up that can be fine-adjusted from 0.3 to 0.9 x Ir
b in conjunction with the tund time delay that can be adjusted from 1 to 200
seconds.
PB103376.eps
Indications …………………………………………
Front indications
b Green “Ready” LED: flashes slowly when the circuit breaker is ready to trip in the
SDTAM remote indication relay module event of a fault.
with its terminal block. b Red alarm LED for motor operation: goes ON when the thermal image of the rotor
or stator is greater than 95% of the permissible temperature rise.
Note: all the trip units have a transparent lead-sealable cover Remote indications via SDTAM or SDx module
that protects access to the adjustment dials.
See description on page A-44 for SDTAM and page A-83 for SDx.
A-46
A-47
Micrologic 6 E-M provides Power Meter functions with Power Meter functions
energy metering. With the FDM121 display unit, all The built-in Power Meter functions of the Micrologic 6 E-M are the same as those for
metering data and operating indicators are available on the Micrologic 6 E presented in the section on distribution (see page A-22). When
the switchboard front panel. This version also displays used exclusively in the three-phase version, neutral measurements are excluded.
the thermal image of the motor.
Operating-assistance functions
The operating-assistance functions of the Micrologic 6 E-M are the same as those
for the Micrologic 6 E presented in the section on distribution (see page A-24).
Phase sequence
The order in which the phases L1, L2, L3 are connected determines the direction of
motor rotation. If two phases are inverted, the direction is reversed.
Information on the direction of rotation is provided. It can be linked to an alarm to
detect an inversion in the direction following servicing on the supply under de-
energised conditions and disable restarting.
Thermal image of the rotor and stator
Micrologic 6 E-M offers a thermal-image function.
Taking into account the Ir setting and the class, an algorithm simulates rotor and
stator temperature rise. It includes the slow temperature rise of the stator and its
Micrologic 6 E-M. metal mass. Also included is the faster temperature rise of the copper rotor.
The thermal protection function trips the circuit breaker when the calculated thermal
image reaches 100 % of the permissible temperature rise.
The communication indicates the thermal-image value as a percentage of the
DB111404.eps
DB111405.eps
ESC ESC
A-48
PB108167.eps
PB103364.eps
Micrologic 6 E-M integrated Power Meter and operating-assistance functions Display
Micrologic FDM121
LCD display
Measurements
Instantaneous rms measurements
Currents (A) Phase currents and average value I1, I2, I3 and Iavg = (I1 + I2 + I3) / 3 b b
Highest current of the 3 phases Imax of I1, I2, I3 b b
Ground-fault protection % Ig (pick-up setting) b b
Current unbalance between phases % Iavg - b
Voltages (V) Phase-to-phase voltages and average value U12, U23, U31 and Uavg = (U12 + U21 + U23) / 3 b b
Unbalance between phase-to-phase voltages % Uavg - b
Phase sequence 1-2-3, 1-3-2 b -
Frequency (Hz) Power system F b b
Power Active (kW), reactive (kVAR), apparent (kVA) P, Q, S total and per phase - b
Power factor and cos ϕ (fundamental) PF, cos ϕ, total and per phase - b
Maximeters / minimeters Associated with instantaneous rms Reset via Micrologic and the display unit - b
measurements
Energy metering
Energy Active (kWh), reactive (kVARh), Total since last reset b b
apparent (kVAh) Absolute or signed mode (1) - b
Demand and maximum demand values
Demand current (A) Phases Present value on the selected window - (2)
Maximum demand since last reset - (2)
Demand power Active (kWh), reactive (kVARh), apparent Present value on the selected window - (2)
(kVAh) Maximum demand since last reset - (2)
Calculation window Sliding, fixed or com-synchronised Adjustable from 5 to 60 minutes in 1 minute steps - (2)
Absolute or signed mode(1) - (2)
Power quality
Total harmonic distortion Of voltage with respect to rms value THDU,THDV of the Ph-Ph and Ph-N voltage - b
(%) Of current with respect to rms value THDI of the phase current - b
Operating assistance
Personalised alarms
Settings Up to 10 alarms can be assigned to all measurements and events - (2)
as well as to phase lead/lag, four quadrants, phase sequence and thermal image - (2)
Time-stamped histories
Trips last 17 Ir, Isd, Ii, Ig, Iunbal, Ijam, Iund, Ilong - (2)
Operating events last 10 events and type: Modification of protection setting by dial - (2)
Maintenance indicators
Counter Mechanical cycles (3) Assignable to an alarm - (2)
(1) Absolute mode: E absolute = E out + E in; Signed mode: E signed = E out - E in.
(2) Available via communication system.
(3) The BSCM module (page A-29) is required for these functions.
A-49
DB112117.eps
systems to limit the current supplied according to the
consumer's contract. They are available in 100, 160,
240 and 400 A ratings and are supplied with a lead-seal
device to protect the settings.
Compact NSX circuit breakers equipped with Micrologic AB trip units are installed as
incoming devices for consumer installations connected to the public LV distribution
system.
With respect to the utility, they have two functions.
PB111442_38.eps
This means the operator can directly see, through a transparent cover, the physical
separation of the main contacts. The Compact INV range is also suitable for isolation
with positive contact indication.
This means utility operators can work on the service-connection unit after isolating it
from the upstream line.
Protection ...............................................................
Settings are made using the adjustment dials with fine-adjustment possibilities
and a lead-seal fixture.
Overloads: Long-time protection (Ir)
Compact NSX with Micrologic 2 AB.
Inverse-time thermal protection against overloads with an adjustable current pick-up
Ir and a very short, non-adjustable time delay tr (15 seconds for 1.5 x Ir).
Short-circuits: Short-time protection (Isd) with fixed time delay
Short-circuit protection with an adjustable pick-up Isd. The short-time pick-up values
are high enough to avoid nuisance tripping in the event of transient current spikes.
Short-circuits: Non-adjustable instantaneous protection
Instantaneous short-circuit protection with a fixed pick-up.
Neutral protection
Available on four-pole circuit breakers only. Neutral protection may be set using a
three-position switch:
b 4P 3D: neutral unprotected
b 4P 3D + N/2: neutral protection at half the value of the phase pick-up, i.e. 0.5 x Ir
b 4P 4D: neutral fully protected at Ir.
PB103377.eps
Indications.............................................................
Front indications
DB112019.eps
b Green “Ready” LED: flashes slowly when the circuit breaker is ready to trip in the
event of a fault.
b Orange overload pre-alarm LED: steady on when I > 90 % Ir.
b Red overload LED: steady on when I > 105 % Ir.
Remote indications
An SDx relay module installed inside the circuit breaker can be used to remote the
overload-trip signal. This module receives the signal from the Micrologic electronic
trip unit via an optical link and makes it available on the terminal block. The signal is
cleared when the circuit breaker is closed.
The module is described in detail in the section dealing with accessories page A-85.
A-50
Technical details
DB115574.eps
Coupling
enclosure Outgoing circuits
LV distribution switchboard
Consumer connection diagram.
A-51
DB112118.eps
systems supplied by generators or comprising long
cable lengths. They can be mounted on all Compact
NSX100/160/250 circuit breakers.
With extensive setting possibilities, Micrologic 5 offers
the same functions from 100 to 630 A.
A thermal-magnetic trip unit is also available for the
NSX100 to 250 (see page A-16). Circuit breakers equipped with Micrologic G trip units protect systems supplied by
generators (lower short-circuit currents than with transformers) and distribution
systems with long cable lengths (fault currents limited by the impedance of the
cable).
Protection ……………………………………………
Settings are made using the adjustment dials with fine adjustment possibilities.
Overloads: Long-time protection (Ir)
Inverse-time thermal protection against overloads with an adjustable current pick-up
Ir and a very short, non-adjustable time delay tr (15 seconds for 1.5 x Ir).
Short-circuits: Short-time protection (Isd) with fixed time delay
Short-circuit protection with an adjustable pick-up Isd, delayed 200 ms, in
compliance with the requirements of marine classification companies.
Short-circuits: Non-adjustable instantaneous protection (li)
Instantaneous short-circuit protection with a fixed pick-up required for generator
protection.
Neutral protection
b On 3-pole circuit breakers, neutral protection is not possible.
b On four-pole circuit breakers, neutral protection may be set using a three-position
switch:
v 4P 3D: neutral unprotected
v 4P 3D + N/2: neutral protection at half the value of the phase pick-up, i.e. 0.5 x Ir
v 4P 4D: neutral fully protected at Ir.
Indications …………………………………………
Front indications
DB112019.eps
b Green “Ready” LED: flashes slowly when the circuit breaker is ready to trip in the
PB103377.eps
event of a fault.
b Orange overload pre-alarm LED: steady on when I > 90 % Ir.
b Red overload LED: steady on when I > 105 % Ir.
Remote indications
An SDx relay module installed inside the circuit breaker can be used to remote the
overload-trip signal.
This module receives the signal from the Micrologic electronic trip unit via an optical
link and makes it available on the terminal block. The signal is cleared when the
circuit breaker is closed.
The module is described in detail in the section dealing with accessories.
A-52
A-53
Compact NSX circuit breakers are also used in Industrial control panels
industrial control panels. Compact NSX circuit breakers equipped for public distribution or motor protection
They serve as an incoming devices or can be functions as described in the previous pages can be used in industrial control panels.
combined with contactors to protect motor feeders: The accessories for the Compact NSX range are suitable for the special needs of
b compliance with worldwide standards including these switchboards.
IEC 60947-2 and UL 508 / CSA 22-2 no. 14
boverload and short-circuit protection Auxiliaries
b isolation with positive contact indication, making it All auxiliaries can be added to the circuit breaker by the user:
possible to service machines safely by isolating them b padlocking devices (in the OFF position)
from all power sources b rotary handle
b installation in universal and functional type b status-indication auxiliary contacts (ON, OFF and tripped)
enclosures b shunt (MX) or undervoltage (MN) releases
b NA switch-disconnector version. b early-make or early-break contacts.
Rotary handle
Direct or extended versions for mounting up to 600 mm behind the front:
b black front with black handle
b yellow front with red handle (for machine tools or emergency off as per IEC 204 /
VDE 0013).
All rotary handles can be padlocked in the OFF position. Optional door interlock,
recommended for MCC panels (motor control centres).
When the device is equipped with an extended rotary handle, a control accessory
mounted on the shaft makes it possible to operate the device with the door open.
The device can be padlocked in the OFF position in compliance with UL508.
Early-make or early-break contacts
These contacts can be used respectively to supply an MN undervoltage release
DB115233.eps
before the circuit breaker closes or to open the contactor control circuit before the
circuit breaker opens.
Special functions
b Indication of thermal overloads with the SDx module.
b Early opening of the contactor for overload faults with the SDTAM module.
b Links with PLCs via the communication system.
b Measurement of all electrical parameters with Micrologic A and E.
b Programmable alarms with Micrologic 5 and 6.
Installation in enclosures
Compact circuit breakers can be installed in a metal enclosure together with other
devices (contactors, motor-protection circuit breakers, LEDs, etc.) (see page A-94).
A-54
Protection
TM-D thermal-magnetic trip units
DB112046.eps
The 16 Hz 2/3 frequency does not modify the thermal settings with respect to those
at 50 Hz (see page A-17). The magnetic pick-ups are modified as shown below.
Magnetic protection for Compact NSX 100/160/250 at 50 Hz and at 16 Hz 2/3
Rating (A) In at 40 °C 16 25 32 40 50 63 80 100 125 160 200 250
Pick-up (A) Im accur. ±20% Fixed Adjustable
NSX100 50Hz 190 300 400 500 500 500 640 800
16Hz 2/3 170 270 360 450 450 450 580 720
NSX160/250 50Hz 190 300 400 500 500 500 640 800 1250 1250 5 to 10 In
16 Hz 2/3 170 270 360 450 450 450 580 720 1100 1100 4.5 to 9 In
Micrologic 5.2 A-Z and 5.3 A-Z are dedicated to 16 Hz 2/3 networks.
They use a suitable sampling frequency. The protection settings are identical to
those of Micrologic 5 A (see page A-21). They also offer a current-measurement
function for this specific frequency.
Trip-unit selection
Rating 16 63 100 160 250 400 630
Compact
NSX100 TM-D
NSX160 TM-D
NSX250 TM-D
NSX100 to 250 Micrologic 5.2 A -Z
NSX400/630 Micrologic 5.3 A-Z
DB115577.eps
DB115578.eps
DB115576.eps
A-55
Compact NSX circuit breakers may be used on 400 Hz 400 Hz distribution systems
systems. The main 400 Hz applications are in aeronautics and certain military ships. Modern
aircraft have three-phase 115/200 V 400 Hz networks.
protection
The 400 Hz current settings are obtained by multiplying the 50 Hz values by the
following adaptation coefficient:
b K1 for thermal trip units
b K2 for magnetic trip units.
These coefficients are independent of the trip-unit setting.
Thermal trip units
The current settings are lower at 400 Hz than at 50 Hz (K1 < 1).
Magnetic trip units
Micrologic TM-D trip unit.
The current settings are conversely higher at 400 Hz than at 50 Hz (K2 > 1).
Consequently, when the trip units are adjustable, they must be set to the minimum
value.
Adaptation coefficients for thermal-magnetic trip units
Circuit Trip unit In (A) Thermal at 40°C Im (A) Magnetic
breaker 50Hz K1 400 Hz 50Hz K2 400 Hz
NSX100 TM16G 16 0.95 15 63 1.6 100
TM25G 25 0.95 24 80 1.6 130
TM40G 40 0.95 38 80 1.6 130
TM63G 63 0.95 60 125 1.6 200
NSX100 TM16D 16 0.95 15 240 1.6 300
TM25D 25 0.95 24 300 1.6 480
TM40D 40 0.95 38 500 1.6 800
TM63D 63 0.95 60 500 1.6 800
TM80D 80 0.9 72 650 1.6 900
TM100D 100 0.9 90 800 1.6 900
NSX250 TM100D 100 0.9 90 800 1.6 900
TM160D 160 0.9 144 1250 1.6 2000
TM200D 200 0.9 180 1000 to 2000 1.6 1600 to
3200
TM250D 250 0.9 225 1250 to 2500 1.6 2000 to
4000
Example
NSX100 equipped with a TM16G with 50 Hz settings Ir = 16 A and Im = 63 A.
400 Hz settings Ir = 16 x 0.95 = 15 A and Im = 63 A x 1.6 = 100 A.
A-56
Its short-time pick-up with fixed time delay is adjustable from 1.5 to 10 Ir (60 to 400 A).
The instantaneous pick-up remains at 3000 A.
a
NSX100/630 at 400 Hz and 440 V
MN/MX
U volt 125 V DC For circuit breakers on 400 Hz systems, only 125 V DC MN or MX releases may be
used. The release must be supplied by the 400 Hz system via a rectifier bridge (to be
selected from the table below) and an additional resistor with characteristics
a 400 Hz
depending on the system voltage.
U (V) 400 Hz Rectifier Additional resistor
Wiring diagram.
220/240 V Thomson 110 BHz or 4.2 kW-5 W
General Instrument W06 or
Semikron SKB at 1.2/1.3
PB103377.eps
Note: other models of rectifier bridges may be used if their characteristics are at least equivalent
to those stated above.
A-57
b Data centers.
Compact 2
b Other markets pursuing energy efficiency (water, industrial, etc.).
NSX250 HB2 3
Ui 800 V Uimp 8 kV Ability to service high power densities
Ue (V) Icu (kA) Ics 4 b Upgrade voltage from ~415-440 to 690 V system allows:
500 ~ 100 100 v smaller cables can be used
525 ~ 100 100
5 - reduced cost and space
660/690 ~ 100 100
- reduced energy loss in transmission
6 v motors are more efficient at 690 V.
7 b Consider 690 V as an alternative MV system:
50/60Hz cat A v lower cost, smaller footprint, and improved maintenance.
8
IEC / EN 60947-2
NEMA AB1 HIC (kA)
9 Safety
480V 100 b IACS (International Association of Classification Societies) change, requires Ics
600V 100 rating for emergency systems:
10
v key influence on Marine systems of high Ics ratings
v continuity of service after 3 faults.
Technology
b Best in class technology and performance:
1 v high breaking capacity
DB413276.eps
A-58
Offer structure
The Compact NSX HB offer has some differences compared to the standard NSX
offer.
b 100 A frame and 250 A frame, there is no 160 A frame. The 125 - 160 A trip units
are used in a 250 A frame.
b All R, HB1, and HB2 circuit breakers are restricted for use as line-load connection.
They can not have power fed into the bottom of the circuit breaker. They will be
marked with Line and Load markings.
b All trip units will be installed at the factory.
Compact NSX250 125-250 2.2: 100, 160, 250 150, 220 2.2 M: 150, 220
5.2 E: 100, 160, 250 6.2 E-M: 150, 220
6.2 E: 100, 160, 250
A-59
Final
distribution
enclosure
for
commercial
applications
A-60
Compact NSX100 to 630 NA switch-disconnectors are Suitability for isolation with positive contact
available in fixed, plug-in and withdrawable versions.
They use the same accessories and offer the same indication
connection possibilities as the circuit-breaker versions. Compact NSX switch-disconnectors are suitable for isolation as defined by standard
They may be interlocked with another Compact IEC 60947-3. The corresponding conformity tests guarantee:
switch-disconnector or circuit breaker to form a b the mechanical reliability of the position indication, i.e. the O (OFF) position
indicated by the control device always reflects the open position of the contacts:
source-changeover system.
v the required distance between contacts is provided
v padlocks may not be installed unless the contacts are open
b the absence of leakage currents
b overvoltage withstand capacity between upstream and downstream connections.
Installation of a rotary handle or a motor mechanism does not alter the reliability of
the position-indication system.
PB108163.eps
Emergency-off function
A Compact NSX NA is combined with an MN or MX release connected to an
emergency-off button. In an emergency, an operator at a remote location can
interrupt the circuit at rated load to isolate the entire switchboard and the
downstream loads.
Motor mechanism
Compact NSX NA devices equipped with a motor mechanism module enable remote
closing and opening. This function may be combined with the emergency-off
function. In this case, the emergency off function is combined with a closing lock-out
that must be intentionally reset (electrical diagram with closing lock-out).
Switch-disconnector protection
The switch-disconnector can make and break its rated current. For an overload or a
short-circuit, it must be protected by an upstream device, in compliance with
installation standards.
The circuit-breaker/switch-disconnector coordination tables determine the required
upstream circuit breaker. However, due to their high-set magnetic release, Compact
NSX100 to 630 A switch-disconnectors are self-protected.
Compact NSX switch-disconnector
equipped with a motor mechanism module. Switch-disconnector utilisation category
Depending on the rated operational current and the mechanical durability (A for
frequent operation or B for infrequent operation), standard IEC 60947-3 defines the
utilisation categories as shown in the table below. Compact NSX NA switch-
PB105128.eps
A-61
Switch-disconnectors
PB108163.eps
A-62
b b
b b
b b
b b
b b
b b
b b
b b
b b
b b
b b
b b
b b
b b
A-63
Some installations use two supply sources to counter Manual source changeover
the temporary loss of the main supply. This is the most simple system. It is controlled manually by a maintenance technician
A source-changeover system is required to safely and consequently the time required to switch from the normal source to the
switch between the two sources. replacement source can vary.
The replacement source can be a generator set or A manual source-changeover system is made up of:
another network. b two devices (circuit breakers or switch-disconnectors) controlled manually
b mechanical interlocking.
The interlock prevents connection to both sources at the same time, even
PB100843A.eps
momentarily.
b source management
b load shedding
b emergency source replacement, etc.
Service sector:
b hospital operating rooms
b safety systems for tall buildings
b computer rooms (banks, insurance companies, etc.)
b lighting systems in shopping centres, etc.
PB100845A.eps
Industry:
b assembly lines
b engine rooms on ships
b critical auxiliaries in thermal power stations, etc.
PB104285_L68.eps
Infrastructures:
b runway lighting systems
b port and railway installations
b control systems for military installations, etc.
A-64
Interlocking system
I
ON Interlocking involves padlocking the rotary handles on two devices which may be
either circuit breakers or switch-disconnectors.
I
ON
tripped
Authorised positions:
reset b one device closed (ON), the other open (OFF)
tripped O OFF b both devices open (OFF).
reset
The system is locked using up to three padlocks (shackle diameter 5 to 8 mm).
O OFF There are two interlocking-system models:
b one for Compact NSX100 to 250
b one for Compact NS400/630.
Interlocking of two devices with rotary handles. Combinations of Normal and Replacement devices
All rotary-handle fixed or plug-in Compact NSX100 to 630 circuit breakers and
switch-disconnectors of the same frame size can be interlocked. The devices must
be either all fixed or all plug-in versions.
(captive keys)
Interlocking using keylocks is very simple and makes it possible to interlock two or
more devices that are physically distant or that have very different characteristics, for
example medium-voltage and low-voltage devices or a Compact NSX100 to 630
circuit breaker and switch-disconnector.
Interlocking system
Each device is equipped with an identical keylock and the key is captive on the
closed (ON) device. A single key is available for all devices. It is necessary to first
open (OFF position) the device with the key before the key can be withdrawn and
used to close another device.
A system of wall-mounted captive key boxes makes a large number of combinations
Interlocking with keylocks.
possible between many devices.
Combinations of Normal and Replacement devices
All rotary-handle Compact NSX100 to 630 circuit breakers and switch-disconnectors
can be interlocked between each other or with any other device equipped with the
same type of keylock.
Interlocking system
A base plate designed for two Compact NSX devices can be installed horizontally or
vertically on a mounting rail. Interlocking is carried out on the base plate by a
mechanism located behind the devices. In this way, access to the device controls
and trip units is not blocked.
Combinations of Normal and Replacement devices
All rotary-handle and toggle-controlled Compact NSX100 to 630 circuit breakers and
switch-disconnectors can be interlocked. Devices must be either all fixed or all
plug-in versions, with or without earth-leakage protection or measurement modules.
An adaptation kit is required to interlock:
b two plug-in devices
b a Compact NSX100-250 with an NSX400-630.
Connection to the downstream installation can be made easier using a coupling
accessory (see next page).
Interlocking on a base plate.
A-65
Remote-operated systems
It is made up of two devices with motor mechanisms, mounted on a base plate and
combined with:
b an electrical interlocking unit
b optional mechanical interlocking system.
Electrical interlocking unit (IVE)
Interlocks two devices equipped with motor mechanisms and auxiliary contacts.
The IVE unit is mandatory to ensure the necessary time-delays required for safe
switching.
Mechanical interlocking system
The mechanical interlocking system is strongly recommended to limit the effects of
design or wiring errors and to avoid manual switching errors.
Remote-operated source-changeover system.
DB413271.eps
Automatic systems
4 An automatic controller can manage switching from one source to the other.
The controller can be:
b a device provided by the customer
b an integrated BA controller
b an integrated UA controller.
An integrated BA or UA automatic controller manages source transfer according to
user-selected sequences that can include source priorities, start-up of a generator,
QN Ø5...8
return to the Normal source, etc. An ACP auxiliaries control plate facilitates
Ø5...8
manu
auto installation of the BA and UA controllers. The plate includes two circuit breakers to
manu
auto
protect the control circuits and two contactors to control the motor mechanisms of
the devices.
3 1 2
2
1 Short terminal shields
2 Terminals
3 Interphase barriers
4 Long terminal shields
3
A-66
(1) The controller is powered by the ACP control plate. The same voltage must be used for
the ACP plate, the IVE unit and the circuit-breaker operating mechanisms. If this voltage is
the same as the source voltage, then the “Normal” and “Replacement” sources can be used
directly for the power supply. If not, an isolation transformer must be used.
A-67
DB115581.eps
Interphase barriers
Sealable terminal
shields
Indication contact
Voltage release
SDTAM module
SDx module
(1)
Vigi module
Current-transformer module
TM-D, TM-G trip unit
Ammeter module
(1) Up to 525 V.
A-68
One-piece spreader
Cable connectors
Rear connectors
A-84
Terminal Cable connectors
extensions
Communication and display
page A-26
BSCM module
NSX cord
Modbus interface
FDM121
Control accessories page A-86
Motor mechanism
A-69
DB115888.eps
Interphase barriers
A-70
Lugs
Rear connectors
Adapter
Cable connectors
Terminal extensions
Circuit breaker
Plug-in base
Power connection
accessories
Power connections
A-71
DB112200.eps
DB112201.eps
DB112202.eps
For the last two, components must be added (base,
chassis) to the fixed version.
Many connection components are shared by the three
versions.
DB112208.eps
adapter).
DB112203.eps
DB112204.eps
L3
L2
L1
8 Nm
L2
8 Nm
L3
8 Nm
L3
L2
L1
DB112209.eps
DB112205.eps
DB112207.eps
A-72
DB112219.eps
DB111369.eps
DB112210.eps
Mounting
DB112220.eps
DB112221.eps
DB112312.eps
A-73
Fixed circuit breakers are designed for standard front Front connection
connection using bars or cables with lugs.
Cable connectors are available for bare cables. Rear Bars or cables with lugs
connection is also possible. Standard terminals
Compact NSX100 to 630 come with terminals comprising snap-in nuts with screws:
b Compact NSX100: M6 nuts and screws. Compact NSX160/250: M8 nuts and
screws
b Compact NSX400/630: M10 nuts and screws.
These terminals may be used for:
DB112169.eps
DB112168.eps
mandatory.
Maximum size of bars
Compact NSX circuit breaker 100/160/250 400/630
Without spreaders pitch (mm) 35 45
maximum bar size (mm) 20 x 2 32 x 6
With spreaders pitch (mm) 45 52.5
Small lug for copper cables. maximum bar size (mm) 32 x 2 40 x 6
Crimp lugs
DB112171.eps
DB112173.eps
DB112174.eps
DB112176.eps
DB112177.eps
Connection of large cables may require an increase in the distance between the
device terminals.
The one-piece spreader is the means to:
b increase the 35 mm pitch of the NSX100 to 250 circuit-breaker terminals to the
45 mm pitch of a NSX400/630 device
b use all the connection and insulation accessories available for the next largest
frame size (lugs, connectors, spreaders, right-angle and edgewise terminal
extensions, terminal shields and interphase barriers).
DB112179.eps
DB112180.eps
A-74
DB112314.eps
Bare cables
For bare cables (without lugs), the prefabricated bare-cable connectors may be used
for both copper and aluminium cables.
1-cable connectors for Compact NSX100 to 250
The connectors snap directly on to the device terminals or are secured by clips to
right-angle and straight terminal extensions as well as spreaders.
Bare cable.
1-cable connectors for Compact NSX400 to 630
The connectors are screwed directly to the device terminals.
2-cable connectors for Compact NSX100 to 250 and 400/630
The connectors are screwed to device terminals or right-angle terminal extensions.
Distribution connectors for Compact NSX100 to 250
These connectors are screwed directly to device terminals. Interphase barriers are
supplied with distribution connectors, but may be replaced by long terminal shields.
Each connector can receive six cables with cross-sectional areas ranging from 1.5 to
35 mm² each.
Polybloc distribution block for Compact NSX100 to 630
Polybloc connects directly to device terminals.
It is used to connect up to six or nine flexible or rigid cables with cross-sectional
DB112315.eps
DB112316.eps
DB112317.eps
DB111326.eps
DB111500.eps
DB115225.eps
DB111330.eps
Bare cables
For the connection of bare cables, the 1-cable connectors for Compact NSX100 to
250 may be secured to the rear connections using clips.
Rear connection.
DB111332.eps
A-75
Connection is identical for both withdrawable and Bars or cables with lugs
plug-in versions. The same accessories as for fixed The plug-in base is equipped with terminals which, depending on their orientation,
devices may be used. serve for front and rear connection.
For rear connection of a base mounted on a backplate, the terminals must be
replaced by insulated, long right-angle terminal extensions.
For Compact NSX630 devices, connection most often requires the 52.5 or 70 mm
pitch spreaders.
DB111337.eps
DB111338.eps
DB111339.eps
Four positions.
DB111346.eps
DB111345.eps
Connection accessories
All accessories for fixed devices (bars, lugs, terminal extensions and spreaders) may
be used with the plug-in base (see page A-74 and page A-75).
Bare cables
All terminals may be equipped with bare-cable connectors. See the "Connection of
fixed devices" section.
DB111340.eps
DB111341.eps
DB111343.eps
A-76
DB111348.eps
1
2 b The rear part completely blocks off the connection zone. Partially cut squares can
be removed to adapt to all types of connection for cables with lugs or copper bars.
Long terminal shields may be mounted upstream and downstream of:
b fixed devices
b the base of plug-in and withdrawable versions, thus completing the insulation
provided by the mandatory short terminal shields on the device
b the one-piece spreader for NSX100 to 250
1 Partially cut removable squares. b the 52.5 mm spreaders for NSX400/630.
2 Grids with break marks. Terminal shields and pitch
Combination possibilities are shown below.
DB111355.eps
Interphase barriers
Safety accessories for maximum insulation at the power-connection points:
b they clip easily onto the circuit breaker
b single version for fixed devices and adapters on plug-in bases
b not compatible with terminal shields
b the adapter for the plug-in base is required for mounting on plug-in and
withdrawable versions.
Interphase barriers.
Rear insulating screens
DB111357.eps
A-77
Standard
All Compact NSX100/160/250 circuit breakers and switch-disconnectors have slots
for the electrical auxiliaries listed below.
5 indication contacts (see page A-84)
b 2 ON/OFF (OF1 and OF2)
b 1 trip indication (SD)
b 1 fault-trip indication (SDE)
b 1 earth-fault indication (SDV), when the device is equipped with a Vigi module.
1 remote-tripping release (see page A-87)
b either 1 MN undervoltage release
b or 1 MX shunt release.
Remote indications
Circuit breakers equipped with Micrologic trip units may be equipped with a fault-trip
indication to identify the type of fault by installing:
1 indication module with two outputs (see page A-85)
b either an SDx module with Micrologic 2.2 / 5.2 A or E / 6.2 A or E
b or an SDTAM module with Micrologic 2.2 M or 6-2 E-M (motor protection).
This module occupies the slots of one OF contact and an MN/MX release.
DB111392.eps
Motor mechanism /
rotary handle / toggle handle
SD SDE
OF1 OF2 OF2
SD SDE OF1
MN /
MX MN /
MX
SDV
SDV
Micrologic 2 / 5 / 6
Standard Remote indications via SDx or SDTAM
DB403041.eps
DB403042.eps
Motor mechanism /
rotary handle / toggle handle Motor mechanism /
rotary handle / toggle handle
OF1 OF2 24 V DC
or SDx /
supply terminal block
SD SDE
MN / SDTAM
MX
A-78
DB115587.eps
BSCM BSCM
NSX cord
or
NSX cord
Micrologic 5 / 6
Communication of measurements with or without FDM121 Communication of status indications, controls and
display measurements with or without FDM121 display
DB403044.eps
DB115589.eps
A-79
Standard
All Compact NSX400/630 circuit breakers and switch-disconnectors have slots for
the electrical auxiliaries listed below.
7 indication contacts (see page A-84)
b 4 ON/OFF (OF1, OF2, OF3, OF4)
b 1 trip indication (SD)
b 1 fault-trip indication (SDE)
b 1 earth-fault indication (SDV), when the device is equipped with a Vigi module.
1 remote-tripping release (see page A-87)
b either 1 MN undervoltage release
b or 1 MX shunt release.
Remote indications
Circuit breakers equipped with Micrologic trip units may be equipped with a fault-trip
indication to identify the type of fault by installing:
1 indication module with two outputs (see page A-85)
b either an SDx module with Micrologic 2.2 / 5.2 A or E / 6.2 A or E
b or an SDTAM module with Micrologic 2.2 M or 6-2 E-M (motor protection).
This module occupies the slots of an MN/MX release.
DB115591.eps
Motor mechanism /
rotary handle / toggle handle
OF1,
OF2, SD
OF1 SD OF3
SDE
OF2
OF3 OF4
SDE
Reserved OF4 Reserved
MN / MN /
MX MX
SDV
SDV
Micrologic 2 / 5 / 6
Standard
DB403046.eps
DB403047.eps
OF1 SD
OF2
OF3 SDE or 24 V DC
supply terminal
Reserved OF4 SDx / block
MN / SDTAM
MX
The SDx or SDTAM uses the reserved slot and the MN/MX slots.
External connection is made via a terminal block in the reserved slot.
The 24 V DC supply provides for the Micrologic 5 / 6 display when the device is OFF or under
low-load conditions.
A-80
DB115595.eps
Micrologic 5 / 6
Communication of status indications Communication of status indications, controls and
measurements with or without FDM121 display
DB403049.eps
DB115597.eps
NSX cord
or
BSCM
NSX cord
A-81
circuit breaker)
b a fixed part, mounted on the plug-in base, equipped with connectors for bare
Plug-in/withdrawable
Compact NSX.
DB115610.eps
DB115601.eps
Connector 1 Connector 1
Connector 2
Connector 2
Connector 3
DB111376.EPS
Compact NSX400/630.
Compact NSX100/160/250
Automatic auxiliary
connector:
Fixed part
Moving part
A-82
DB115602.eps
connector.
Connector 1
Connector 2
DB115611.eps
Compact NSX100/160/250.
Connector 1
Connector 2
Connector 3
A-83
One contact model provides circuit-breaker status These common-point changeover contacts provide remote circuit-breaker status
indications (OF - SD - SDE - SDV). information.
An early-make or early-break contact, in conjunction They can be used for indications, electrical locking, relaying, etc.
with a rotary handle, can be used to anticipate device They comply with the IEC 60947-5 international recommendation.
opening or closing.
A CE / CD contact indicates that the chassis is Functions
connected / disconnected. Breaker-status indications, during normal operation or after a fault
A single type of contact provides all the different indication functions:
b OF (ON/OFF) indicates the position of the circuit breaker contacts
b SD (trip indication) indicates that the circuit breaker has tripped due to:
v an overload
v a short-circuit
DB125549.eps
b SDV indicates that the circuit breaker has tripped due to an earth fault. It returns to
de-energised state when the Vigi module is reset.
All the above auxiliary contacts are also available in "low-level" versions capable of
switching very low loads (e.g. for the control of PLCs or electronic circuits).
Rotary-handle position contact for early-make or early-break functions
b CAM (early-make or early-break function) contacts indicate the position of the
CE/CD carriage switches. rotary handle.
They are used in particular for advanced opening of safety trip devices (early break)
or to energise a control device prior to circuit-breaker closing (early make).
Chassis-position contacts
b CE/CD (connected/disconnected) contacts are microswitch-type carriage
switches for withdrawable circuit breakers.
Installation
b OF, SD, SDE and SDV functions: a single type of contact provides all these
different indication functions, depending on where it is inserted in the device. The
contacts clip into slots behind the front cover of the circuit breaker (or the Vigi module
for the SDV function).
The SDE function on a Compact NSX100 - 250 A equipped with a magnetic,
thermal-magnetic or Micrologic 2 trip unit requires the SDE actuator.
b CAM function: the contact fits into the rotary-handle unit (direct or extended).
b CE/CD function: the contacts clip into the fixed part of the chassis.
A-84
SDx and SDTAM are relay modules with two static SDx module
outputs. They send different signals depending on the The SDx module remotes the trip or alarm conditions of Compact NSX circuit
type of fault. They may not be used together. breakers equipped with electronic protection.
The SD2 output, available on all Micrologic trip units, corresponds to the overload-
trip indication.
The SD4 output, available on Micrologic 5 / 6, is assigned to:
b overload pre-alarm (Micrologic 5)
PB103377-20.eps
SDTAM module
The SDTAM module is specifically for the motor-protection Micrologic trip units
SDx relay module with its terminal block. 2.2 M, 2.3 M and 6.2 E-M, 6.3 E-M.
The SDTAM module, linked to the contactor controller, opens the contactor when an
overload or other motor fault occurs, thus avoiding opening of the circuit breaker.
PB103376-20.eps
Micrologic 2 M
The SD4 output opens the contactor 400 ms before normal circuit-breaker opening
in the following cases:
b overload (long-time protection for the trip class)
b phase unbalance or phase loss.
The SD2 output serves to memorise contactor opening by SDTAM.
Micrologic 6 E-M
The SD4 output opens the contactor 400 ms before normal circuit-breaker opening
in the following cases:
b overload (long-time protection for the trip class)
b phase unbalance or phase loss
b locked rotor
b underload (undercurrent protection)
b long start.
The SD2 output serves to memorise contactor opening by SDTAM.
SDTAM relay module with its terminal block.
Output characteristics
Output reset can be:
b manual by a pushbutton included in the wiring diagram
b automatic after an adjustable time delay (1 to 15 minutes) to take into account the
motor-cooling time.
Static outputs: 24 to 415 V AC / V DC; 80 mA max.
DB115603.eps
DB414824.eps
6 8 Opening
Q 4 10 order
Q 2 12
1 14
OFF 15 KA1
Auto reset (mn)
SD1 KM1
SD1
KM1
a (-) a (-)
A-85
feature very high mechanical endurance as well as easy and sure operation:
b all circuit-breaker indications and information remain visible and accessible,
including trip-unit settings and indications
b suitability for isolation is maintained and padlocking remains possible
b double insulation of the front face.
A specific motor mechanism is required for operation via the communication
function. This communicating motor mechanism must be connected to the BSCM
module to receive the opening and closing orders. Operation is identical to that of a
standard motor mechanism.
Operation
The type of operation is selected using the manual/auto mode selection switch (7).
A transparent, lead-seal cover controls access to the switch.
Automatic
When the switch is in the "auto" position, the ON/OFF (I/O) buttons and the charging
lever on the mechanism are locked.
b Circuit-breaker ON and OFF controlled by two impulse-type or maintained signals.
b Automatic spring charging following voluntary tripping (by MN or MX), with
1 2 3
DB111335R.eps
standard wiring.
b Mandatory manual reset following tripping due to an electrical fault.
Manual
When the switch is in the "manual" position, the ON/OFF (I/O) buttons may be used.
A microswitch linked to the manual position can remote the information.
0OFF discharged
b Circuit-breaker ON and OFF controlled by 2 pushbuttons I/O.
4 b Recharging of stored-energy system by pumping the lever 8 times.
b Padlocking in OFF position.
Optional accessories
8 7 6 5 b Keylock for locking in OFF position.
b Operations counter for the Compact NSX400/630, indicating the number of ON/
1 Position indicator OFF cycles. Must be installed on the front of the motor-mechanism module.
(positive contact indication)
2 Spring status indicator (charged, discharged)
3 Manual spring-charging lever Characteristics
4 Keylock device (optional)
Locking device (OFF position), using 1 to 3 padlocks, Motor mechanism MT100 to MT630
shackle diameter 5 to 8 mm, not supplied Response time (ms) opening < 600
5 I (ON) pushbutton closing < 80
6 O (OFF) pushbutton Operating frequency cycles/minute max. 4
7 Manual/auto mode selection switch. The position of this Control voltage (V) DC 24/30 - 48/60 - 110/130 - 250
switch can be indicated remotely. AC 50/60 Hz 48 (50 Hz) - 110/130 -
8 Operation counter (Compact NSX400/630) 220/240 - 380/440
Consumption (1) DC (W) opening y 500
closing y 500
AC (VA) opening y 500
closing y 500
(1) For NSX100 to NSX250, the inrush current is 2 In for 10 ms.
Electrical endurance
Circuit breaker + motor-
DB111336.eps
50 mechanism module, in
40 thousands of operations
30 NSX100 (IEC 60947 2), at 440 V.
20 NSX160
15
10 NSX250
6 NSX400
4 NSX630
A-86
MX or MN voltage releases are used to trip the circuit breaker. They serve primarily
044313_20_SE.eps
MN undervoltage release
The MN release opens the circuit breaker when its supply voltage drops to a value
below 35 % of its rated voltage Un.
Undervoltage tripping, combined with an emergency-off button, provides fail-safe
MX or MN voltage release. tripping. The MN release is continuously supplied, i.e. if supply is interrupted:
b either voluntarily, by the emergency-off button,
Failsafe opening Possible opening b or accidentally, through loss of power or faulty wiring,
DB115605.eps
Delayed A time delay unit for the MN release eliminates the risk of nuisance tripping due to a
trip order transient voltage dip lasting y 200 ms. For shorter micro-outages, a system of
capacitors provides temporary supply to the MN at U > 0.7 to ensure non tripping.
DB115631.eps
D1 MX shunt release
The MX release opens the circuit breaker via an impulse-type (u 20 ms) or
MN release with a time-delay Wiring diagram for maintained order.
unit. emergency-off function with Opening conditions
MN + time-delay unit. When the MX release is supplied, it automatically opens the circuit breaker. Opening
is ensured for a voltage U u 0.7 x Un.
Possible opening Failsafe opening Characteristics
DB115608.eps
A-87
Device locking
The rotary handle facilitates circuit-breaker locking.
b Padlocking:
v standard situation, in the OFF position, using 1 to 3 padlocks, shackle diameter 5
to 8 mm, not supplied
v with a simple modification, in the ON and OFF positions. Locking in the ON
position does not prevent free circuit-breaker tripping if a fault occurs. In this case,
the handle remains the ON position after the circuit breaker tripping. Unlocking is
required to go to the tripped then the OFF position.
b Keylock (and padlock)
It is possible to install a Ronis or Profalux keylock (optional) on the base of the
handle to obtain the same functions as with a padlock.
Compact NSX with a rotary handle.
Early-make or early-break contacts (optional)
PB103607-50.eps
Early-make and/or early-break contacts may be used with the rotary handle. It is thus
possible to:
b supply an MN undervoltage release before the circuit breaker closes
b open the contactor control circuit before the circuit breaker opens.
MCC switchboard control
Control of an MCC switchboard is achieved by adding a kit to the standard handle. In
addition to the standard functions, the kit offers the characteristics listed below.
Higher degree of protection IP
Degree of protection IP43, IK07.
The IP is increased by a built-in gasket.
Door locking depending on device position
b The door cannot be opened if the circuit breaker is ON or in the tripped position.
For exceptional situations, door locking can be temporarily disabled with a tool to
open the door when the circuit breaker is closed. This operation is not possible if the
Compact NSX with an MCC rotary handle. handle is locked by a padlock.
b Circuit-breaker closing is disabled if the door is open. This function can be
PB103608-50.eps
deactivated.
Machine-tool control in compliance with CNOMO
Control of a machine-tool is achieved by adding a kit to the standard handle. In
addition to the standard functions, the kit offers the characteristics listed below.
Enhanced waterproofness and mechanical protection
b Degree of protection IP54, IK08.
b Compliance with CNOMO E03.81.501N.
A-88
A-89
Voltage-presence indicator
PB103795-32.eps
The indicator detects and indicates that circuit breaker terminals are supplied with
power.
Installation
b Mounted in the long or short terminal shields, via the knockouts.
Voltage-presence indicator. b May be positioned upstream or downstream of the circuit breaker.
b Degree of protection IP40, IK04.
b Not compatible with the motor-mechanism module.
Electrical characteristics
Operates on all networks with voltages ranging from 220 to 550 V AC.
Current-transformer module
This module enables direct connection of a measurement device such as an
ammeter or a power meter.
Installation
b The module is installed directly on the downstream circuit-breaker terminals.
b Degree of protection IP40, IK04.
PB105123.eps
A-90
This module detects and indicates an insulation drop on a load circuit (TN-S or TT
systems).
Operation is identical to that of a Vigi module, but without circuit-breaker tripping.
Indication by a red LED in front.
An auxiliary contact may be installed for remote insulation-drop indications.
When insulation drops below a minimum, user-set threshold, the LED goes on and
the auxiliary contact switches. The fault indication cannot be cancelled except by
pressing the manual reset button.
Installation
b The module is installed directly on the downstream circuit-breaker terminals.
b Degree of protection IP40, IK04.
b Double insulation of the front face.
Electrical characteristics
b Settings: 100 - 200 - 500 - 1000 mA.
b Accuracy: -50 +0 %.
b Time delay following insulation drop: 5 to 10 seconds.
b AC-system voltage: 200 to 440 V AC.
Insulation monitoring module.
A-91
Locking in the OFF position guarantees isolation as per IEC 60947-2. Padlocking
DB111364.eps
DB111365.eps
systems can receive up to three padlocks with shackle diameters ranging from 5 to
8 mm (padlocks not supplied). Certain locking systems require an additional
accessory.
DB111359.eps
DB111360.eps
Ø5...8
u auto u auto
man man
DB111361.eps
A-92
Outgoing-circuit identification
DB115224.eps
Compact NSX100 to 630 can be equipped with label holders supplied in sets of ten
(cat. no. LV429226).
They are compatible with escutcheons.
A bag contains:
b 6 sealing accessories
b 6 lead seals
b 0.5 m of wire
b 2 screws.
Sealing accessories.
DB112301.eps
DB112303.eps
Toggle control
DB112302.eps
DB112306.eps
DB112308.eps
Rotary handle
DB112304.eps
DB112305.eps
DB112307.eps
Motor mechanism
DB125896.eps
Ø5...8
Ø5...8
u auto
man
u auto
man
auto
Ø5...8
uto
Types of seals Front-cover fixing screw Trip-unit transparent cover Motor-mechanism Terminal-shield fixing
transparent cover screw
Protected operations b front removal b modification of settings b access to manual/auto b access to power
b access to auxiliaries b access to test connector. mode selection switch: connections (protection
b trip-unit removal. depending on its position, against direct contact).
manual (1) or automatic
operation is not possible.
(1) In this case, local
operation is not possible.
DB112310.eps
DB112311.eps
Access to Vigi-module
settings
A-93
Individual enclosures are available for Compact/Vigicompact NSX devices with two,
PB103593-40.eps
D W
A-94
Escutcheons are an optional feature mounted on the IP30 or IP40 escutcheons for fixed devices
switchboard door. They increase the degree of
protection to IP40, IK07. Protection collars maintain the IP30
degree of protection, whatever the position of the The three types are glued to the cut-out in the front door of the switchboard:
device (connected, disconnected). b escutcheon for all control types (toggle, rotary handle or motor mechanism)
v without access to the trip unit
v with access to the trip unit
b for Vigi modules, can be combined with the above.
PB105119.eps
IP40
The four types, with a gasket, are screwed to the door cut-out:
b three escutcheons identical to the previous, but IP40
b a wide model for Vigi and ammeter modules that can be combined with the above.
DB112290.eps
DB112291.eps
IP30 escutcheon.
Escutcheon for toggle without and with access to the trip unit.
PB105126.eps
DB112292.eps
DB112293.eps
160
A 120
80
40
0
160/5A
A-95
DB112294
DB112295
DB112296
Ø5...8
Ø5
Ø5...8
...8
DB112298.eps
DB112299.eps
Ø5...8
Escutcheon for Vigi module, with escutcheons for the three types of control.
PB103775-40.eps
Toggle cover.
PB103820_35.eps
Toggle cover.
A-96
Operating conditions
Operating conditions B-2
Installation in switchboards
Power supply and weights B-3
Safety clearances and minimum distances B-4
Installation example B-5
Control wiring
Control wiring B-6
Temperature derating
Compact NSX100 to 250 equipped with thermal-magnetic trip units B-8
Compact NSX equipped with electronic trip units B-9
B-1
2000
Altitude does not significantly affect the characteristics of Compact NSX circuit
breakers up to 2000 m. Above this altitude, it is necessary to take into account the
decrease in the dielectric strength and cooling capacity of air.
The following table gives the corrections to be applied for altitudes above 2000
metres.
The breaking capacities remain unchanged.
Compact NSX100 to 630
Altitude (m) 2000 3000 4000 5000
Dielectric withstand voltage (V) 3000 2500 2100 1800
Insulation voltage (V) Ui 800 700 600 500
Maximum operational voltage (V) Ue 690 590 520 460
Average thermal current (A) at 40 °C In x 1 0.96 0.93 0.9
Vibrations
DB111390.eps
Degree of protection
Compact NSX circuit breakers have been tested for degree of protection (IP)
DB111391.eps
Electromagnetic disturbances
Compact NSX devices are protected against:
b overvoltages caused by circuit switching
b overvoltages caused by an atmospheric disturbances or by a distribution-system
outage (e.g. failure of a lighting system)
b devices emitting radio waves (radios, walkie-talkies, radar, etc.)
b electrostatic discharges produced directly by users.
Compact NSX devices have successfully passed the electromagnetic-compatibility
tests (EMC) defined by the following international standards. See page A-3.
These tests ensure that:
b no nuisance tripping occurs
b tripping times are respected.
B-2
Compact NSX circuit breakers can be supplied from either the top or the bottom,
even when equipped with a Vigi earth-leakage protection module, without any
reduction in performance. This capability facilitates connection when installed in a
switchboard.
All connection and insulation accessories can be used on circuit breakers supplied
either from the top or bottom.
Weight
The table below presents the weights (in kg) of the circuit breakers and the main
accessories, which must be summed to obtain the total weight of complete
configurations. The values are valid for all performance categories.
Type of device Circuit breakers Base Chassis Vigi module Visu module Motor mech.
NSX100 3P/2D 1.79 0.8 2.2 0.87 2 1.2
3P/3D 2.05 0.8 2.2 0.87 2 1.2
4P/4D 2.4 1.05 2.2 1.13 2.2 1.2
NSX160 3P/2D 1.85 0.8 2.2 0.87 2 1.2
3P/3D 2.2 0.8 2.2 0.87 2 1.2
4P/4D 2.58 1.05 2.2 1.13 2.2 1.2
NSX250 3P/2D 1.94 0.8 2.2 0.87 2 1.2
3P/3D 2.4 0.8 2.2 0.87 2 1.2
4P/4D 2.78 1.05 2.2 1.13 2.2 1.2
NSX400/630 3P/3D 6.19 2.4 2.2 2.8 4.6 2.8
4P/4D 8.13 2.8 2.2 3 4.9 2.8
B-3
General rules
When installing a circuit breaker, minimum distances (safety clearances) must be
maintained between the device and panels, bars and other protection devices
installed nearby. These distances, which depend on the ultimate breaking capacity,
are defined by tests carried out in accordance with standard IEC 60947-2.
If installation conformity is not checked by type tests, it is also necessary to:
b use insulated bars for circuit-breaker connections
b segregate the busbars using insulating screens.
For Compact NSX100 to 630 devices, terminal shields and interphase barriers are
recommended and may be mandatory depending on the operating voltage of the
device and type of installation (fixed, withdrawable, etc.).
Power connections
The table below indicates the rules to be respected for Compact NSX100 to 630
devices to ensure insulation of live parts for the various types of connection.
b fixed devices with front connection (FC) or rear connection (RC)
b plug-in or withdrawable devices.
Connection accessories such as crimp lugs, bare-cable connectors, terminal
extensions (straight, right-angle, double-L and 45°) and spreaders are supplied with
interphase barriers.
Long terminal shields provide a degree of protection of IP40 (ingress) and IK07
(mechanical impact).
DB115058.eps
DB115057.eps
DB115056.eps
Possible, recommended or mandatory accessories: No insulating Interphase Long terminal Short terminal Short terminal Short terminal
accessory barriers shields shields shields shields
DB115059
DB115060
DB115061
DB115061
DB115061
With:
Extension terminals
Possible
Cables + crimp lugs Mandatory
No (instead of ph. Recommended Recommended Mandatory
(supplied)
barriers)
Bare cables + Possible for Possible for Possible for
connectors cable cable cable
connectors connectors connectors
NSX100 to 250 NSX100 to 250 NSX100 to 250 Recommended Recommended Mandatory
Possible (1)
Mandatory (1)
No (instead of ph.
(supplied)
barriers)
u 500 V Insulated bars Mandatory
(use of short
No No Mandatory Mandatory Mandatory
terminal shield
possible)
Extension terminals
Cables + crimp lugs
No No Mandatory Mandatory Mandatory Mandatory
Bare cables +
connectors
No No Mandatory Mandatory Mandatory Mandatory
(1) Long terminal shields, mandatory if the device is fixed through the door, whatever the voltage.
B-4
Safety clearance
Minimum distance between two Minimum distance between circuit
adjacent circuit breakers breaker and front or rear panels
Front F
DB115046.eps
DB115697.eps
panel
A1
B=0 F
Bare or painted sheetmetal Note: if F < 8 mm: an insulating screen or long
terminal shield is mandatory (see page A-77).
Minimum distance between circuit breaker and top, bottom or side panels
DB413243.eps
DB413244.eps
DB413245.eps
DB413246.eps
D1 D1 D1
D1
DB414826.eps
D3
D2 C1
Short terminal shield rear connected. Devices without accessories. Devices with interphase barriers or long or short terminal shields.
B-5
N L1 L2 L3 3P+N: supply from the bottom External neutral current transformer (ENCT)
DB118543.eps
T2 This connection is required to protect the neutral on 3-pole circuit breakers equipped
with Micrologic 5 / 6 A or E trip units in installations with a distributed neutral. For
T1
Micrologic 6 A or E, it is required for type G ground-fault protection.
The ENCT is connected in the same way for fixed, plug-in or withdrawable devices:
b fixed devices are connected via terminals T1 and T2 of the internal terminal block.
I b plug-in and withdrawable devices are not connected via the auxiliary terminals.
The wires must be connected/disconnected inside the device via terminals T1 and
U
T2.
H2 T1
The ENCT must be connected to the Micrologic trip unit by a shielded twisted pair.
ENCT
H1 T2 The shielding should be connected to the switchboard earth only at the CT end, no
more than 30 cm from the CT.
b the power connections of the CT to the neutral (H2 and H1) must be made in the
External neutral current transformer (ENCT).
same way for power supply from the top or the bottom (see figure). Make sure they
are not reversed for devices with power supply from the bottom.
b cross-sectional area of 0.4 mm² to 1.5 mm²
b maximum length of 10 metres.
Modbus
DB115702.eps
B-6
24 V DC 24 V DC
Use
An external 24 V DC power supply is required for installations with communication,
Battery
whatever the type of trip unit.
On installations without communication, it is available as an option for Micrologic 5/6
to:
b modify settings when the circuit breaker is open (OFF position)
b display measurements when the current flowing through the circuit breaker is low
b maintain the display of the cause of tripping.
Power supply, without the Communication function, via the Characteristics
terminal block with a backup battery.
The external 24 V DC supply may be used for the entire switchboard.
24 V DC Modbus
The required characteristics are indicated in the table below.
DB126770.eps
Characteristics
Output voltage 24 V DC -20 % to +10 %
Ripple ±1 %
Overvoltage category (OVC) OVC IV - as per IEC 60947-1
Sizing
Sizing must take into account all supplied modules.
Module Consumption (mA)
Downstream ULP wiring
for 24 V DC supply Micrologic 5 / 6 40
BSCM module 10
Supply, with the Communication function, via the Modbus FDM 121 40
interface. Modbus communication interface 60
NSX cord U > 480 V AC 30
2 1
DB124600.eps
Wiring
EGX / MPS100
Micrologic 5 or 6 not using the Communication function
The external 24 V DC supply is connected via the circuit breaker terminal block.
Modbus + 24 V DC Modbus + 24 V DC Use of a 24 V DC battery provides backup power for approximate 3 hours (100 mA)
in the event of an interruption in the external supply.
Micrologic 5 or 6 using the Communication function
The external 24 V DC supply is connected via the Modbus interface using a five-pin
connector, including two for the power supply. Stacking accessories (see page A-29)
3
can be used to supply a number of interfaces by fast clip-on connection.
The 24 V DC power is distributed downstream by the ULP (Universal Logic Plug)
communication cords with RJ45 connectors. This system ensures both data transfer
and power distribution to the connected modules.
4 FDM121 FDM121 Recommendations for 24 V DC wiring
b Do not connect the positive terminal to earth.
b Do not connect the negative terminal to earth.
b The maximum length for each conductor (+/-) is ten metres.
5 5 b For connection distances greater than ten metres, the plus and minus conductors
of the 24 V DC supply must be twisted to improve EMC.
Compact Compact NSX400 Compact b The 24 V DC conductors must cross the power cables perpendicularly. If this is
NSX160 + BSCM NSX160 difficult or impossible, the plus and minus conductors must be twisted.
+ BSCM + communicating
motor mechanism
24 V DC
Modbus
Each Compact NSX circuit breaker equipped with Micrologic 5/6 and an FDM 121
+ display is connected to the Modbus network via the Modbus interface module.
Connection of all the circuit breakers and other Modbus devices in the switchboard
MU to a Modbus bus is made much easier by using a Modbus RJ45 junction block
installed in the switchboard.
Recommendations for Modbus wiring
b The shielding may be earthed.
b The conductors must be twisted to improve immunity (EMC).
Compact NS630b 6 Masterpact NT
b The Modbus conductors must cross the power cables perpendicularly.
B-7
When thermal-magnetic trip units are used at ambient The overload protection is calibrated at 40 °C in the lab. This means that when the
temperatures other than 40 °C, the Ir pick-up is ambient temperature is less or greater than 40 °C, the Ir protection pick-up is slightly
modified. modified.
To obtain the tripping time for a given temperature:
b see the tripping curves for 40 °C (see page E-2 and page E-3)
b determine tripping times corresponding to the Ir value (thermal setting on the
device), corrected for the ambient temperature as indicated in the tables below.
(A)
DB115053.eps
100
Rat. Temperature (°C)
(A) 10 15 20 25 30 35 40 45 50 55 60 65 70
16 18.4 18.7 18 18 17 16.6 16 15.6 15.2 14.8 14.5 14 13.8
90
25 28.8 28 27.5 27 26.3 25.6 25 24.5 24 23.5 23 22 21
32 36.8 36 35.2 34.4 33.6 32.8 32 31.3 30.5 30 29.5 29 28.5
80
40 46 45 44 43 42 41 40 39 38 37 36 35 34
50 57.5 56 55 54 52.5 51 50 49 48 47 46 45 44
10 20 30 40 50 60 70 (°C) 63 72 71 69 68 66 65 63 61.5 60 58 57 55 54
5 000
TM100D trip unit set to 100 A, for an overload I = 500 A?
The overload I/Ir is calculated as a function of the temperature. Use the above values
2 000
1 000
and the curve on page E-3 (shown on the left) to determine the corresponding time.
500
b At 40 °C, Ir = 100 A, I/Ir = 5 and the tripping time is between 6 and 60 seconds.
b At 20 °C, Ir = 110 A, I/Ir = 4.54 and the tripping time is between 8 and 80 seconds.
200
100
b At 60 °C, Ir = 90 A, I/Ir = 5.55 and the tripping time is between 5 and 50 seconds.
50
Example 2. What is the setting to obtain a real Ir of 210 A, taking into account the
20
temperature, for a Compact NSX250 equipped with a TM250D trip unit?
10
5
The necessary dial setting, in amperes, is shown below.
t(s) b At 40 °C, Ir = (210/250) x 250 A = 210 A
2
b At 20 °C, Ir = (210/277) x 250 A = 189.5 A
1
.5
b At 60 °C, Ir = (210/225) x 250 A = 233 A
.2 TMD80/100
Additional derating coefficient for an add-on module
.1
The values indicated in the previous tables are valid for fixed circuit breakers
.05
equipped with one of the following modules:
.02 b Vigi module
.01
Reflex tripping: b insulation monitoring module
.005
t < 10 ms b ammeter module
.002 b current-transformer module.
.001
.5 .7 1 2 3 4 5 7 10 20 30 50 70100 200300 They also apply for plug-in or withdrawable circuit breakers equipped with:
I / Ir b ammeter module
b current-transformer module.
However, for plug-in or withdrawable circuit breakers equipped with a Vigi module
or an insulation monitoring module, the coefficient 0.84 must be applied.
Example 1. Fault I = 500 A The table below sums up the situation for add-on modules.
I/Ir 4.5 5 5.5
Type of Circuit breaker TM-D Vigi or Ammeter or
T°C 20 °C 40 °C 60 °C device trip-unit insulation current
t min. 8s 6s 5s rating monitoring transformer
t max. 80 s 60 s 50 s module module
Fixed NSX100 16 to 100
Thermal-protection curve with minimum and maximum
NSX160 to 250 125 to 160
values.
NSX250 200 to 250 1
1
Plug-in or NSX100 16 to 100
withdrawable NSX160 125 to 160
NSX250 200 to 250 0.84
B-8
Electronic trip units are not affected by variations in Changes in temperature do not affect measurements by electronic trip units.
temperature. If the trip units are used in high- b The built-in CT sensors with Rogowski toroids measure the current.
temperature environments, the Micrologic setting must b The control electronics compare the value of the current to the settings defined
nevertheless take into account the temperature limits for 40 °C.
of the circuit breaker. Because temperature has no effect on the toroid measurements, the tripping
thresholds do not need to be modified.
However, the temperature rise caused by the flow of current and the ambient
temperature increase the temperature of the device. To avoid reaching the thermal
withstand level of the equipment, it is necessary to limit the current flowing through
the device, i.e. the maximum Ir setting as a function of the temperature.
Compact NSX100/160/250
The table below indicates the maximum long-time (LT) protection setting Ir (A)
depending on the ambient temperature.
Type of Rating (A) Temperature (°C)
device 40 45 50 55 60 65 70
NSX100/160
Fixed, plug-in or no derating
withdr.
NSX250
Fixed, plug-in or 100 no derating
withdrawable 160 no derating
Fixed 250 250 250 250 245 237 230 225
Plug-in or withdr. 250 250 245 237 230 225 220 215
B-9
Compact NSX thermal power loss values are used to The values indicated in the tables below are typical values for a device at full rated
calculate total temperature rise in the switchboard in load and 50/60 Hz.
which the circuit breakers are installed. Power loss per pole (P/pole) in Watts (W)
The value indicated is the power loss at IN, 50/60 Hz, for a three-pole or four-pole
circuit breaker. Measurement and calculation of power loss are carried out in
compliance with the recommendations of Annex G of standard IEC 60947-2.
Resistance per pole (R/pole) in milliohms (mW)
N L1 L2 L3
DB115052.eps
The value of the resistance per pole is provided as a general indication for a new
device.
The value of the contact resistance must be determined on the basis of the
measured voltage drop, in accordance with the manufacturer's test procedure (ABT
instruction document no. 1 - BEE - 02.2 -A).
Note: this measurement is not sufficient to determine the quality of the contacts, i.e. the capacity
of the circuit breaker to carry its rated current.
Additional power loss
Additional power loss is equal to the sum of the power dissipated by the following:
With a Vigi module, the deviation of the N and L3 bars required
to pass through the toroid results in higher power losses
b Vigi module: note that the deviation of the N and L3 bars required to pass through
compared to those of the L1 and L2 bars. the toroid results in higher power losses compared to those of the L1 and L2 bars
(diagram opposite). When calculating total power loss, use L1, L2, L3 for a 3P device
and N, L1, L2, L3 for a 4P device
b disconnecting contacts (plug-in and withdrawable devices)
b ammeter module
b transformer module.
Calculation of total power loss
Total power loss at full rated load and 50/60 Hz is equal to the sum of the device and
additional power losses per pole multiplied by the number of poles (2, 3 or 4).
If a Vigi module is installed, it is necessary to differentiate between N and L3 on one
hand and L1 and L2 on the other.
B-10
The values indicated in the table below are typical values for a device at full rated
load and 50/60 Hz. The definitions and information are the same as that for circuit
breakers equipped with thermal-magnetic trip units.
B-11
Front-panel accessories
Compact NSX100 to 630 C-20
Front-panel cutouts
Compact NSX100 to 630 fixed version C-22
Vigicompact NSX100 to 630 fixed version C-24
Compact NSX100 to 630 plug-in and withdrawable versions C-26
Vigicompact NSX100 to 630 plug-in and withdrawable versions C-27
Visu function for Compact NSX100 to 630 fixed version C-28
Motor mechanism module for Compact and Vigicompact NSX100 to 630 C-29
Direct rotary handle for Compact and Vigicompact NSX100 to 630 C-30
Indication and measurement modules for Compact NSX100 to 630 C-32
Power connections
Compact and Vigicompact NSX100 to 630 fixed version C-34
Compact and Vigicompact NSX100 to 630 plug-in and withdrawable versions C-38
Connection of insulated bars or cables with lugs to Compact
and Vigicompact NSX100 to 630 C-42
Connection of bare cables to Compact and Vigicompact NSX100 to 630 C-43
C-1
Dimensions
1 pole 2 poles
DB402532.eps
DB402533.eps
DB402534.eps
X X X
Y Y
Mounting
On backplate
1 pole 2 poles
DB402535.eps
DB402536.eps
X X
Y Y
(c) For rear connection only.
On rails
1 pole 2 poles
DB402537.eps
DB402538.eps
X X
Y Y
C-2
DB402540.eps
DB402541.eps
DB402542.eps
X X X X
Y Y Y
With escutcheon
DB402544.eps
DB402543.eps
X X
Dimensions (mm)
Type C C1 C2 C3 C6 C7 G G1 G4 G5 H
NSX100/250 29 76 54 108 43 104 62.5 125 70 140 80.5
Type H1 H2 H3 H4 H6 H7 K K1 L3 L4 L5
NSX100/250 161 94 188 160.5 178.5 357 17.5 35 17.5 70 35
Type P1 P2 P4 P5 P6 R R1 R2 R4 R5 R6
NSX100/250 81 86 111 83 88 14.5 29 19 38 73 29
Type R7 ØT ØT4 U
NSX100/250 58 6 22 y 32
C-3
Dimensions 2/3P 4P
DB112061.eps
DB112062.eps
DB112063.eps
DB112064.eps
A4
A3
A A2
A1
X X X
A A2
A3
A4
C1 B B
C2 B1 B2
C3
Z Y Y
Interphase barriers. Long terminal shields (also available for NSX400/630 spreaders with 52.5 mm pitch:
Short terminal shields. B1 = 157.5 mm, B2 = 210 mm).
F1 F1 F1 F1 F1 F1 F1
DB112065.eps
DB111411.eps
DB112067.eps
DB112066.eps
F2 F2 F2
F1 F1 F3
E4
X X X
E2
E1 E3
2 Ø6 Y ØT(1) Y 4 Ø6 Y 4 Ø6
On rails 2/3P 3P 4P
F1 F1 F3
DB112068.eps
DB111412.eps
DB112069.eps
DB112070.eps
F2 F2 F2
X X X
E2
E1
2 Ø6 Y Y 4 Ø6 Y 4 Ø6
G4
DB112071.eps
DB112072.eps
G5
G3 X
G2
G1
C-4
DB112074.eps
DB112076.eps
DB112075.eps
A4
A3
A A2
X X X
A6 A8
A5 A7 A9
C1 B
C2 B1 B
C3 B2 B1
Y B2
Z
Y
DB112079.eps
DB112078.eps
F1 F1 F1 F1 F1
F2 F2 F2
F1 F1 F3
X X X
E6 E1
E8
E5
E7
6 Ø6 6 Ø6
ØT(1) 3 Ø6
Y Y
Y
(1) The ØT holes are required for rear connection only.
For two-pole circuit breakers, the middle holes are not required.
On rails 3P 3P 4P
F1 F1 F3
DB111421.eps
DB112080.eps
DB112081.eps
DB112082.eps
F2 F2 F2
X X X
E6 E1
E5
Y 6 Ø6 Y 6 Ø6
Y 3 Ø6
Type A A1 A2 A3 A4 A5 A6 A7 A8 A9 B B1 B2 C1 C2 C3 E1
NSX100/160/250 80.5 161 94 145 178.5 155.5 236 169 220 253.5 52.5 105 140 81 86 126 62.5
NSX400/630 127.5 255 142.5 200 237 227.5 355 242.5 300 337 70 140 185 95.5 110 168 100
Type E2 E3 E4 E5 E6 E7 E8 F1 F2 F3 G1 G2 G3 G4 G5 ØT U
NSX100/160/250 125 70 140 137.5 200 145 215 35 17.5 70 95 75 13.5 23 17.5 24 y 32
NSX400/630 200 113.5 227 200 300 213.5 327 45 22.5 90 - - - - - 32 y 35
C-5
Dimensions 2/3P 4P
M
DB112641.eps
DB112640.eps
DB112642.eps
DB112643.eps
N
A11
A10
M
A A2
N A1
X X X
A A2
A10
A11
B B
27 B2
B1
45
D1 C3
Z Y Y
Interphase barriers for base. Long terminal shields (also available for NSX400/630 spreaders with 52.5 mm pitch:
Short terminal shields on circuit breaker. B1 = 157.5 mm, B2 = 210 mm).
Adapter for base, required to mount long terminal shields or interphase barriers.
Mounting
Through front panel (N) 2/3P 3P 4P
NSX100 to 250 NSX400/630 NSX100 to 630
F1 F1
DB112649.eps
DB115637.eps
F3
DB112648.eps
DB112650.eps
N F2 F2 F2
E10 E12 X X Y
X
E9 E11
F4 F4 F4
2 Ø6 4 Ø6 4 Ø6
F5 F5 F6
Y Y Y
C-6
F1 F3
DB112656.eps
DB112655.eps
F2 F2
E14 X X
E13
2 Ø6 4 Ø6
Y Y
DB112659.eps
DB112657.eps
F1 F2
F2 F3
E14 E16 X X
E13 E15
2 Ø6 ØT1(1) 4 Ø6
Y Y
(1) The ØT1 holes are required for rear connection only (for
two-pole circuit breakers, the middle holes are not required).
DB112662.eps
DB112660.eps
F1 F2
F2 F3
E14
E18 X X
E13 E17
2 Ø6 ØT1(1) 4 Ø6
Y Y
(1) The ØT1 holes are required for rear connection only (for
two-pole circuit breakers, the middle holes are not required).
On rails 2/3P 4P
F7 F8
DB112664.eps
DB112665.eps
DB112663.eps
F9 F9
U
X X
E20
E19
2 Ø6 4 Ø6
Y Y
C-7
Dimensions 2/3P 4P
DB112644.eps
M
DB112645.eps
DB112646.eps
DB112647.eps
A10
M A12 A11
N X
X X
A13 A11
A10
B3 B3
B4 B6
27
B5 B7
45 Y
Y
D1 C3
Z
M
DB112681.eps
C3 32
Z
Mounting
Through front panel (N) 2/3P 3P 4P
NSX100 to 250 NSX400/630 NSX100 to 630
F1 F1 F3
DB112652.eps
DB115638.eps
DB112653.eps
DB112651.eps
N F2 F2 F2
E10 E12 X X X
3
E9 E11
C-8
DB112655.eps
DB112656.eps
F2 F2
E14 X X
E13
2 Ø6 4 Ø6
Y Y
DB112658.eps
DB112659.eps
F1 F2
F2 F3
E14 E16 X X
E13 E15
2 Ø6 ØT1(1) 4 Ø6
Y Y
(1) The ØT1 holes are required for rear connection only (for
two-pole circuit breakers, the middle holes are not required).
DB112661.eps
DB112662.eps
F1 F1 F1
F1 F2
F2 F3
E14
E18 X
X
E13 E17
2 Ø6 ØT1(1) 4 Ø6
Y Y
(1) The ØT1 holes are required for rear connection only (for
two-pole circuit breakers, the middle holes are not required).
On rails 2/3P 4P
F7 F8
DB112685.eps
DB112664.eps
DB112665.eps
F9 F9
U
X X
E20
E19
2 Ø6 4 Ø6
Y Y
Type A10 A11 A12 A13 B3 B4 B5 B6 B7 C3 D1 E9 E10 E11 E12 E13 E14
NSX100/160/250 175 210 106.5 103.5 92.5 185 216 220 251 126 75 95 190 87 174 77.5 155
NSX400/630 244 281 140 140 110 220 250 265 295 168 100 150 300 137 274 125 250
Type E15 E16 E17 E18 E19 E20 F1 F2 F3 F7 F8 F9 F10 F11 F12 ØT1 U
NSX100/160/250 79 158 61 122 37.5 75 35 17.5 70 70 105 35 74 148 183 24 y 32
NSX400/630 126 252 101 202 75 150 45 22.5 90 100 145 50 91.5 183 228 33 y 35
C-9
DB112668.eps
DB112669.eps
N
A11
M A10
A2
A
N
X X X
A6
A10 A5 A7
A11
27 B
45 B1 B
D1 C3 B2 B1
Z Y B2
Y
Interphase barriers for base. Long terminal shields (also available for NSX400/630 spreaders with 52.5 mm pitch:
Short terminal shields on circuit breaker. B1 = 157.5 mm, B2 = 210 mm).
Adapter for base, required to mount long terminal shields or interphase barriers.
M
DB112670.eps
DB112672.eps
DB112673.eps
DB112671.eps
M
N N
X X X
27 B3 B3
45 B4 B6
D1 C3 32 B5 B7
Z Y Y
Mounting
Through front panel (N)
See Compact NSX100 to 630 plug-in version, page C-6, or withdrawable version, page C-8
On backplate (M)
See Compact NSX100 to 630 plug-in version, page C-7, or withdrawable version, page C-9
On rails
See Compact NSX100 to 630 plug-in version, page C-7, or withdrawable version, page C-9
C-10
138
DB112674.eps
DB112675.eps
DB112676.eps
DB112677.eps
131
96
86 140 140
35 35 35 35 35 35
284.5 X X X
X X X
80.5 94
145
178.5
52.5 52.5
Z 105 140
Y Y
Interphase barriers.
Short terminal shields.
Long terminal shields.
Mounting 3P 4P
On rails or backplate
70 70
DB112678.eps
DB112679.eps
DB112680.eps
7 Ø6 35 9 Ø6 35
17.5 17.5
U U
100 X 100 X
50 50
22.3 22.3
157.5 157.5
125 X 125 X
62.5 62.5
Y Y
U y 32
C-11
162
DB112688.eps
DB112689.eps
DB112686.eps
DB112687.eps
160.4
130 185 185
120 45 45 45 45 45 45
477.5
X X X
492.5
422.5 241 241
365
X X X
127.5 142.5
200
237
70 70
140 185
Y
Y Y
Mounting 3P 4P
On rails or backplate
90 90
DB112690.eps
DB112691.eps
DB112692.eps
9 Ø6 45 9 Ø6 45
22.5 22.5
U U
X X
150 150
75 75
33 33
241 241
200 200
X X
100 100
Y Y
U y 35
C-12
Dimensions 3P 4P
Fixed circuit breaker
DB112693.eps
DB112694.eps
DB112695.eps
DB112696.eps
A17
A15 X X X
A14 A16
Ø5...8
C4 B8 B8
B9 B9
C5/C6
B B
B1 B2
Z Y Y
M M
DB112697.eps
DB112698.eps
N N
Ø5...8
27
45
D1 C5
M M
DB112699.eps
DB112700.eps
N N
X
Ø5...8
27
45
D1 C5 32
Z
C-13
Dimensions 3P 4P
Fixed circuit breaker
B10
DB112701.eps
DB112702.eps
DB112703.eps
DB112704.eps
I
60°
A15 X X X
60°
A14 O
A18
B8 B8
B9 B9
C7
B B
C8/C9 B1 B2
Z Y Y
C8: without keylock
C9: with keylock
M M
DB112705.eps
DB112706.eps
N N
27
45
D1 C8
Z
M M
DB112708.eps
DB112707.eps
N N
27
45
D1 C8 32
C-14
Dimensions
MCC type direct rotary handle
DB112712.eps
DB112713.eps
DB112714.eps
A18
A20
8
X X
Ø5...
A19
1...3 max.
P1 B10
B11
B12
Z
Y
DB112717.eps
DB112715.eps
DB112716.eps
LIN GERI
MER t NS
compac
N A18 A22
X X
8
Ø5...
push
to
trip
A21
1...3 max.
P2 B10
B13
B14
Z Y
DB111413.eps
DB111414.eps
100 145
Ø5...
8
X X
41 51
50
75
100
145
Y
Y
CNOMO type direct rotary handle
DB112715.eps
DB111415.eps
DB111416.eps
N
LIN GERI
MER t NS
compac
150
119
8
Ø5...
push
to
trip
X X
50.5 50.4
C-15
Dimensions
Fixed and plug-in circuit breakers
M M
DB112709.eps
DB112710.eps
N N
10
X
M
DB112711.eps
M
DB111417.eps
N N
DB111419.eps
C-16
Dimensions
Circuit breaker with ammeter module Circuit breaker with current-transformer module
DB112718.eps
DB112719.eps
DB112720.eps
DB112721.eps
A4 A4
A3 A3
A A2 A A2
X X
A6 A8 A6 A8
A5 A7 A9 A5 A7 A9
160
A 120
80
40
0
A
160/5
C1 C1
C2 C2
Interphase barriers. C11
Short terminal shields. Z Z
Long terminal shields.
DB112079.eps
DB112722.eps
DB111420.eps
F2 F2 F2
F1 F1 F3
X X X
E6 E1
E8
E5
E7
ØT(1) 3 Ø6 6 Ø6 6 Ø6
Y Y Y
(1) The ØT holes are required for rear connection only.
For two-pole circuit breakers, the middle holes are not required.
On rails 2/3P 3P 4P
F1 F1 F3
DB111421.eps
DB112081.eps
DB112082.eps
DB112723.eps
F2 F2 F2
X X X
E6 E1
E5
Y 3 Ø6 Y 6 Ø6 Y 6 Ø6
Type A A2 A3 A4 A5 A6 A7 A8 A9 C1 C2 C11 E1 E5 E6 E7 E8
NSX100/160/250 80.5 94 145 178.5 155.5 236 169 220 253.5 81 86 137 62.5 137.5 200 145 215
NSX400/630 127.5 142.5 200 237 227.5 355 242.5 300 337 95.5 110 162 100 200 300 213.5 327
Type F1 F2 F3 ØT U
NSX100/160/250 35 17.5 70 24 y 32
NSX400/630 45 22.5 90 32 y 35
C-17
Dimensions
Rear alignment Front alignment
185
DB111422.eps
DB111423.eps
DB111424.eps
DB111425.eps
99 140
98 110 70.5
201
255.5
130
80.5
X X X
Y
Z
24
Interphase barriers.
Short terminal shields. Z
Long terminal shields.
Mounting
Rear alignment 2/3P 4P
45 90
DB114986.eps
DB114987.eps
DB114985.eps
22.5 62.5
4 Ø6 6 Ø6
163 163
X X
125 125
62.5 62.5
17.5 17.5
35 70
Y Y
45 90
DB114989.eps
DB114990.eps
DB114988.eps
22.5 62.5
7 Ø6 8 Ø6
25 163 25 163
X X
50 50
62.5 62.5
17.5 17.5
35 70
70 70
Y 105
Y
C-18
Dimensions
DB114991.eps
DB114992.eps
96
X
96
Y
Mounting
Through panel
DB114993.eps
DB114994.eps
DB118545.eps + 0.8
X 92 0
X
+ 0.8
10.6 92 0
30 23
Y
Z
On panel
DB114996.eps
DB115121.eps
DB115122.eps
DB115270.eps
2 Ø22.5
16.5
X 99.3
+0.5 X
-
32
19
+
- 0.3
15 37 20 13 2 Ø22.5
+1.5
-
33
Z
17
99.3
Y
Connector (optional).
C-19
DB114998.eps
DB114999.eps
DB115000.eps
DB114997.eps
X X
A
B 4
Y
DB115002.eps
DB115003.eps
DB115004.eps
X
X
A1
4
B
Y
For Vigicompact
DB115005.eps
DB115006.eps
DB115007.eps
DB115008.eps
X
X
64
4
65
Y
DB115010.eps
DB115011.eps
DB115012.eps
A3 X
A2 X
3.5 6.5
B1
Y
DB115014.eps
DB115015.eps
DB115016.eps
80.5 X
93.5 X
3.5 6.5
157
Y
C-20
DB115018.eps
DB115019.eps
DB115020.eps
64 X
79 X
69 3.5 6.5
Y
DB115022.eps
DB115024.eps
DB115023.eps
X
X
A4
35
B2
Y
For Vigicompact
DB115025.eps
DB115026.eps
DB115027.eps
DB115028.eps
X
52.5
35
91
Y Circuit breaker with toggle or
rotary handle.
DB115029.eps
63
Circuit breaker with
motor-mechanism module.
IP43 toggle cover
DB115030.eps
DB115031.eps
DB115032.eps
DB115120.eps
X
A5
B3 C
Y
Type A A1 A2 A3 A4 A5 B B1 B2 B3 C
NSX100/160/250 113 138 114 101 73 85 113 157 91 103 40
NSX400/630 163 211 164 151 122.5 138 163 189 122.5 138 60
C-21
DB115037.eps
DB115038.eps
DB115039.eps
127
X 77 X X
29.5
42
P3 47.5 63.5
95 127
Z Y Y
DB115041.eps
DB115042.eps
DB119816.eps
X X X
102 175
54.5
90
P3 47.5 63.5
95 127
Z Y Y
DB115045.eps
DB115038.eps
DB115039.eps
127
X 77 X X
29.5 42
P3 47.5 63.5
95 127
Z Y Y
DB115063.eps
DB115042.eps
DB119816.eps
X X X
102 175
54.5
90
P3 47.5 63.5
95 127
Z Y Y
C-22
DB115065.eps
DB115066.eps
DB115067.eps
155
X 103 X X
42.5 56.5
P4 74 90
148 180
Z Y Y
DB115123.eps
DB115038.eps
DB115039.eps
127
X 77 X X
29.5 42
P4 47.5 63.5
95 127
Z Y Y
DB115439.eps
Y
∆
Type P3 P4
NSX100/160/250 88 89 Note: door cutout dimensions are given for a device position in
h
NSX400/630 112 113 the enclosure where D u 100 + (h x 5) with respect to the door
hinge.
C-23
DB115073.eps
DB115074.eps
DB115075.eps
X X X
85.5
148
38
38
P3 14.5
29
Z Y 29
32
Y
DB115077.eps
DB115078.eps
DB115079.eps
X X X
85.5
148
38
38
P3 14.5
29
Z Y 29
32
Y
DB115075.eps
DB115080.eps
DB115081.eps
X X X
85.5
148
38
38
P3 14.5
29
Z Y 29
32
Y
C-24
DB115083.eps
DB115078.eps
DB115079.eps
X X X
85.5
148
38
38
P3 14.5
29
Z Y 29
32
Y
DB115085.eps
DB115086.eps
DB115087.eps
X X X
71
132
68
68
29
58
P4 47
Z Y
58
Y
DB115439.eps
Y
∆
Type P3 P4
NSX100/160/250 88 89 Note: door cutout dimensions are given for a device position in
the enclosure where D u 100 + (h x 5) with respect to the door h
NSX400/630 112 113 hinge.
C-25
Plug-in version
DB115088.eps
DB115089.eps
M M
N
N
27
45
D1 P3
Z
DB115066.eps
DB115067.eps
DB115091.eps
M M
N
N
155
X 103 X X
42.5 56.5
74 90
148 180
27 Y Y
45
D1 P5
C-26
Plug-in version
DB115092.eps
DB115094.eps
M M
N
N
27
45
D1 P3
Z
DB115098.eps
DB115095.eps
DB115096.eps
M M
N
N
X X X
55
122.5
82.5
82.5
74
148
Y 90
27
148
45
Y
D1 P5
Z
DB115439.eps
Y
∆
Type D1 P3 P5
NSX100/160/250 75 88 123 Note: door cutout dimensions are given for a device position in
the enclosure where D u 100 + (h x 5) with respect to the door h
NSX400/630 100 112 147 hinge.
C-27
DB115100.eps
DB115101.eps
132
66
82
17.5
X 115.5
88
Z Y
DB115103.eps
DB115440.eps
162
81
103
X 17.5
105
89
Z Y
DB115105.eps
DB115106.eps
172
86
127
22.5
X 177.5
112
Y
Y
DB115108.eps
DB115441.eps
202
101
153
22.5
X 164.5
113
Y
Y
C-28
DB115038.eps
DB115039.eps
DB115110.eps
N
N
77 X 127
X X
29.5
42
Ø5...8
47.5 63.5
95 127
27
45 P6 Y
Y
D1 P7
Z
DB115039.eps
DB115111.eps
DB115112.eps
N
N
77 X 127
X X
29.5
42
Ø5...8
47.5 63.5
95 127
27
Y
45 P6 Y
D1 P7
Z
DB115066.eps
DB115067.eps
DB115113.eps
N
N
103 X 155
X X
42.5
56.5
Ø5...8
74
148 90
27 180
Y
45 P8 Y
D1 P9
Z
DB115117.eps
DB115118.eps
DB115116.eps
N 74 90
N
X
103 X 155
42.5 X
55
Ø5...8
56.5
122.5
27
45 Y
D1 P8
Z Y
Type D1 P6 (1) P7 (2) P8 (1) P9 (2)
NSX100/160/250 75 145 177 146 178 (1) Plug-in version.
NSX400/630 100 217 249 218 250 (2) Withdrawable version.
C-29
M
DB115144.eps
M
DB115145.eps
DB115119.eps
DB115146.eps
N N
77 X
127
29.5 X
X 85.5
42
148
47.5
95
27 63.5
45 Y
127
D1 P10
Z Y
DB125898.eps
M M
DB115147.eps
DB115124.eps
N N
102 X
175 X
54.5
X 85.5
90
148
47.5
95
27 63.5
Y
45
D1 P10 127
Z Y
M M
DB115145.eps
DB115127.eps
DB115128.eps
DB115146.eps
N N
77 X
127
29.5 X
X 85.5
42
148
47.5
95
27 63.5
Y
45
127
D1 P10
Z Y
C-30
DB115125.eps
DB125898.eps
M M
DB115129.eps
DB115130.eps
N N
102 X
175 X
54.5
X 85.5
90
148
47.5
95
27 63.5
45 Y
D1 P10 127
Z Y
M M
DB115131.eps
DB125551.eps
DB115132.eps
DB115133.eps
N N
103 X
155
42.5 X
X 85.5
56.5
148
74
148
27 90
45 Y
180
D1 P11
Z Y
M M 148 180
DB115134.eps
DB115135.eps
DB115117.eps
DB115118.eps
N 74 90
N
103 X
X 155
42.5 X
55
56.5
122.5
Y
27
Y
45
D1 P12
Z
C-31
Fixed or plug-in circuit breakers with ammeter module and voltage-presence indicator
Bare sheet metal
With toggle Rotary handle
M M M Ø31
DB115136.eps
DB125552.eps
DB125553.eps
DB115139.eps
N N N
J1
X
X X
J2
56.5
K1
93
27 27
45 45 Y
D1 P3 D1 P10
Z Z
M M M Ø31
DB115140.eps
DB115141.eps
DB115142.eps
DB115143.eps
N N N
J1
X
X X
J3
82.5
K2
148
27 27
45 45 Y
D1 P4 D1 P11
Z Z
C-32
Connection locations
C1 B1 B1 B1
DB115442.eps
DB115443.eps
A1
X X
A2
A3
Y
C2
Type A1 A2 B1 C1 C2 Type A1 A3 B1 C1 C2
NSX100/160 70 140 35 19.5 19.5 NSX100/160 + Vigi 70 215 35 19.5 21.5
NSX250 70 140 35 21.5 19.5 NSX250 + Vigi 70 215 35 21.5 21.5
NSX400/630 113.5 227 45 26 26 NSX400/630 + Vigi 113.5 327 45 26 26
DB115445.eps
DB115446.eps
10.5 14
70 113.5
X X
Cables with lugs/bars Bars/cables with lugs
Connection with accessories
Long and short rear connectors
NSX100 to 250
Z
DB115447.eps
DB116107.eps
43 for short RC
88 for long RC
10 ∅8.6
13
18
70
6 ∅20
X
NSX400/630
Z
DB116108.eps
50 for short RC
115 for long RC
15 ∅13 ∅23.2
14
30
113.5
8
X
C-34
DB115452.eps
Z
DB115451.eps
DB115450.eps
22 Z 63
70
X
70
X
DB115453.eps
NSX400/630
DB115455.eps
Z
DB115454.eps
46.5
14
113.5
113.5
X
X
Distribution connectors (for NSX100 to 250 only)
X
DB115457
DB115456.eps
70
41
DB115459
DB115460
Z 8
37.5 61
39.5 (b) 4
34
20.5
70 113.5
(b) NSX250. X X
Straight terminal extensions (for NSX100 to 250 only)
4
DB115462
DB115461
41
30
70
C-35
Z Z
DB115463.eps
DB115464.eps
DB115465.eps
23.5 30
53
42 58
8 42
70
4 113.5
X
Z Z
DB115466.eps
DB115467.eps
13.5 DB115468.eps 10
40
31 61.5
4
8 48
70
113.5
X
X
Z
DB115469.eps
DB115470.eps
45
4
46
35
70
C-36
E1 E3 C3
DB115471.eps
DB115472.eps
DB115473.eps
DB115474.eps
E2 E2 F2 E2 E2 E2
F1
X
X X
Z
NSX400/630
C4
Y Y
Type C3 C4 E1 E2 E3 F1 F2
X
NSX100/160 23.5 - 114 45 159 100 11
NSX250 25.5 - 114 45 159 100 11
Z
NSX400/630 - 44 135 52.5 187.5 152.5 15
170 70 240 166 15
180.5 98
DB115475.eps
DB115476.eps
DB115477.eps
140 26
45 45 45
130
113.5
X X
Y
Z
C-37
Connection locations
M B1 B1 B1
DB115478.eps
DB115479.eps
N
A4
V
X
X A5
Y
27
45
D1
Z
Type A4 A5 B1 D1 Note:
b for mounting on a backplate, the insulating screen supplied with the plug-in base must be
NSX100 to 250 100 200 35 75 installed.
NSX400/630 156.5 313 45 100 b for withdrawable versions, terminal shields are recommended.
DB115482.eps
DB115480.eps
Z
108.5
Z
100 171
156.5
DB115484.eps
DB115485.eps
114.5
67 100.5
4 Z
6
Z
80.5
49
63.5 57.5 129
X 104 82.5
96.5
X
75.5
DB115488.eps
DB115489.eps
114.5
67 100.5
Z
Ø8.5
Ø11 Z
70 49
57.5
113.5
X 82.5
96.5
X
C-38
DB115492.eps
48.5
DB115491.eps
DB115490.eps
Z
110
163
100 Z
100
X
30
X
30
NSX400/630
68 94
DB115494.eps
DB115495.eps
DB115493.eps
171 Z
203
156.5
156.5
X
55
X
55
Bare-cable connectors: mounting through front panel (N) or on rails (V)
NSX100 to 250 74
DB115498.eps
54
DB115497.eps
DB115496.eps
Z
110
100 163
Z
X 100
18
X
18
NSX400/630
84 111
DB115500.eps
DB115501.eps
DB115499.eps
171 Z
156.5 203
156.5
X
18
X
18
C-39
33 57
DB115506.eps
DB115508.eps
DB115507.eps
8
4
140 218
Z 204.5
131 Z
100 156.5
X
X
18
18
47
DB115509.eps
DB115510.eps
146
135 Z
100
X
30
51
DB115505.eps
146
135 Z
100
X
18
C-40
DB115512.eps
DB115513.eps
DB115514.eps
E2 E2 F2 E2 E2 E2
F1
X
X X
Z
NSX400/630
50
Y Y
Type E1 E2 E3 F1 F2 X
NSX100 to 250 114 45 159 130 11
Z
NSX400/630 135 52.5 187.5 195.5 15
170 70 240 209 15
DB115517.eps
DB115515.eps
75.5 108.5
67 94.5
Z
Z
80.5
129
30 X
55
X
DB115519.eps
DB115520.eps
75.5 108.5
67 94.5
Z
Z
63.5
30 104
X
55
X
Long, insulated connectors are mandatory.
C-41
DB115653.eps
Direct connection to NSX100 to 630
Dimensions NSX100 NSX160/250 NSX400/630
Ø
400 Bars L (mm) y 25 y 25 y 32
d I (mm) d + 10 d + 10 d + 15
I
d (mm) y 10 y 10 y 15
L
e (mm) y6 y6 3 y e y 10
e
Ø (mm) 6.5 8.5 10.5
Bar.
Lugs L (mm) y 25 y 25 y 32
DB115654.eps
Accessories for NSX100 to 250 Connection with accessories to NSX100 to 250 (IEC 228)
Straight terminal Double-L terminal Pole pitch
extensions extensions Without spreaders 35 mm
DB112176.eps
DB112172.eps
With spreaders 45 mm
Dimensions With spreaders or terminal extensions
NSX100 NSX160/250
Tinned copper Tinned copper Bars L (mm) y 25 y 25
DB115656.eps
l (mm) 20 y I y 25 20 y I y 25
Spreaders: d (mm) y 10 y 10
separate parts one-piece spreader 400 Ø
e (mm) y6 y6
DB115655.eps
DB112177.eps
Without spreaders 45 mm
With spreaders 52.5 or 70 mm
Dimensions With spreaders With terminal extensions
Bars L (mm) y 40 y 32
DB115656.eps
(1) Tightening torque on the circuit breaker for spreaders or terminal extensions.
DB112173.eps
(2) Tightening torque on the plug-in base for spreaders or terminal extensions.
Spreaders and right-angle, 45° and edgewise terminal extensions are supplied with
flexible interphase barriers.
Tinned copper Tinned copper
DB115658.eps
To be mounted on upstream
side.
C-42
DB115660.eps
Connection for NSX100 to 250
DB112315.eps
DB112317.eps
DB111327.eps
DB115661.eps
DB115662.eps
1-cable 2-cable Distribution connector Polybloc distribution block
connector connector
DB115663.eps
S (mm²) Cu / Al 1.5 to 95 (1) 25 to 50 70 to 95 120 to 185
150 max. flex.
L Torque (Nm) 12 20 26 26
2-cable connector
S
L (mm) 25 or 50
S (mm²) Cu / Al 2 x 50 to 2 x 120
Torque (Nm) 22
6-cable distribution connector (copper or aluminium)
L (mm) 15 or 30
S (mm²) Cu / Al 1.5 to 6 (1) 8 to 35
Torque (Nm) 4 6
Polybloc distribution block (6 or 9 cables)
L (mm) 12 16
S (mm²) Cu / Al 6 x 4 to 10 3 x 6 to 16
(1) For flexible cables from 1.5 to 4 mm², connection with crimped or self-crimping ferrules.
DB111326.eps
C-43
D-1
a (+) a (+)
DB115707.eps
Upstream CB
3P or 4P NSX cord
Z1
Z2
Z3
Z4
Z5
N L1 L2 L3 SDE 81
+ -
HL BPO BPF
82 84
D2
C2
A4
A2
B4
B2
Z1
Z2
MN MX
T1
Q T2 auto
I 0 I
ou manu
Z3
Z4
U Z5
A1
L1
D1
C1
a (-)
manu SDE
a (-)
a (220/240 V)
+ -
Downstream CB
HL
BSCM
B4
Z1
Z2
Q I U T1
T2
Z3
Z4
Z5
ENVT auto 0 I
manu
A1
ENCT
H2 T1 a
Communicating motor
H1 T2 mechanism (MTc)
D-2
Indication contacts
DB115708.eps
102
104
134
124
42
32
22
12
72
82
84
92
94
44
34
24
14
74
WH
RD
YE
VT
OF4 OF3 OF2 OF1 SDE SD CAF2 CAF1 CAO1 SDV
WH
RD
GY
131
41
31
21
71
121
101
81
91
11
D-3
Upstream CB
DB402277.eps
a (+)
a (+)
Z1
Z2
Z3
Z4
Z5
SDE 81
NSX cord
3P or 4P BPO BPF
N L1 L2 L3
82 84
C2
D2
B4
A4
A2
84
RD +
84 BK -
RD
A1 BL L
24/34
22/32
B4 WH
A2 WH
H
BL
C2 OR
A4 OR
BL
A2
D2
B4
B2
Z2 YE
Z1 VT
MN MX
T1
Q T2 auto
0 I
I or manu
BK Z3
GN Z4
RD Z5
A1
L1
D1
C1
GN
WH
BK
41
42
44
A1
D1/C1
L1
a (-) manu a (-) SDE
a (220/240 V)
+ -
HL
Downstream BSCM B4
Z1
Z2
B4 GN
Z2 YE
Z1 VT
Q I U
T1
T2 auto
ENVT 0 I
manu
BK Z3
GN Z4
RD Z5
OR A1
ENCT
Z3
Z4
Z5
H2 T1
A4
H1 T2 a
Communicating motor
mechanism (MTc)
D-4
32
22
12
82
84
92
94
44
34
24
14
72
74
42 GN
82 GN
92 GN
44 RD
84 RD
94 RD
32 YE
22 YE
12 YE
72 YE
34 VT
24 VT
14 VT
74 VT
314
312
352
354
102
104
134
124
WH
GY
GY
RD
VT
VT
YE
VT
OF4 OF3 OF2 OF1 SDE SD CAF2 CAF1 WH CAO1 SDV CE CD
YE
YE
GY
RD
131
121
101
BK 41
GY 31
GY 21
311
351
BK 81
BK 91
GY 71
GY 11
41
31
21
71
81
91
11
D-5
The diagram is shown with circuits de- Motor mechanism (MT) with automatic reset
energised, all devices open, connected and a (+)
DB114666.eps
charged and relays in normal position.
SDE 81
BPO BPF
After tripping initiated by the "Push to trip" button or by
the undervoltage (MN) release or the shunt (MX)
release, device reset can be automatic, remote or 82 84
manual.
A4
A2
B4
B2
Following tripping due to an electrical fault (with an
SDE contact), reset must be carried out manually.
Q
auto
0 I
manu
A1
L1
manu SDE
a (-)
SDE 81
BPO BPF Reset
82 84
A4
A2
B4
B2
Q
auto
0 I
manu
A1
L1
manu SDE
a (-)
SDE 81
BPO BPF
82 84
A4
A2
B4
B2
Symbols
Q: circuit breaker
A4 : opening order
A2: closing order
B4, A1: motor mechanism power supply Q
L1: manual position (manu) auto
0 I
manu
B2: SDE interlocking (mandatory for correct
operation)
A1
L1
D-6
DB114669.eps
NSX cord
a (220/240 V)
+ -
HL
BSCM
B4
Q
auto 0 I
manu
A1
a
DB114670R.eps
Symbols
Q: circuit breaker
B4, A1: motor mechanism power supply
BSCM: breaker status and control module
Terminals shown in red O must be connected by the customer.
D-7
DB115711.eps
charged and relays in normal position.
STD PAL Ir
or output 1 or SDG
or output 2
SD3 SD2 SD4
Symbols
SDx
SD1, SD3: SDx-module power supply
SD2: output 1 (80 mA max.)
Q
SD4: output 2 (80 mA max.)
SD2 SD4
Micrologic 2 SDT -
Micrologic 5 SDT or output 1 PAL Ir or output 2 SD1
Micrologic 6 SDT or output 1 SDG or output 2
Terminals shown in red O must be connected by the customer.
a (-)
Operation
tr at 6 Ir
DB115712.eps
> 105 % Ir
> 90 % Ir
I
PAL Ir
SDG
SDT
I: charge current
PAL Ir: thermal overload pre-alarm
SDG: ground-fault signal
SDT: thermal-fault signal
Q: circuit breaker
D-8
DB115713.eps
charged and relays in normal position.
Manual Closing
reset SDT KA1 order
KM1
SD3 SD2 SD4
Symbols
SDTAM
SD1, SD3: SDTAM-module power supply
6 8 Opening
SD2: thermal-fault signal output 4 10 order
(80 mA max.) Q
2 12
SD4: contactor-control output 1 14
(80 mA max.) OFF 15 KA1
Auto reset (minutes)
SD2 SD4 SD1
Micrologic 2-M SDT KA1 KM1
Micrologic 6 E-M SDT KA1 KM1
Operation
Class (tr) at 7.2 Ir
DB115714.eps
> 95 % T°
400 ms
< 95 % T°
I
SDT
KA1
KM1
I: charge current
SDT: thermal-fault signal
KA1: auxiliary relay (e.g. RBN or RTBT relay)
KM1: motor contactor
Q: circuit breaker
D-9
Ethernet
1 2
24 V c
Modbus 24 V c
7 7
Ø5...8
OK
Mode
OK OK
auto
Mode u Mode
man
9
9
10 10
100%
100%
40%
40%
D-10
Ethernet
+ -
External power supply
24 V c EGX100
+
Rx- Rx+ Tx- Tx+
-
Modbus line
termination
(VW3A8306DRC)
24 V
0V
D0
D1
24 V
0V
D0
D1
24 V
0V
D0
D1
Modbus Communication Interface Module (Compact NSX)
+ - + - + -
Network
FDM121 FDM121
A B A' B'
version > V2.0.2 version > V2.0.2
CCM
Breaker
A B A' B'
+ -
E1 E2 E3 E4 E5 E6 E1 E2 E3 E4 E5 E6
24 V
0V
A / Tx - D0
A' / Rx - D0
24 V
0V
B / Tx + D1
B' / Rx+ D1
A / Tx - D0
B / Tx + D1
A' / Rx - D0
B' / Rx+ D1
E5 E6
E3 E4
E1 E2
D-11
Tripping curves
Compact NSX100 to 250 protection of distribution systems E-2
Compact NSX100 to 250 motor protection E-6
Compact NSX400 to 630 protection of distribution systems E-8
Compact NSX400 to 630 motor protection E-10
Compact NSX100 to 630 reflex tripping E-12
E-1
10 000 10 000
DB114759.eps
DB114760.eps
5 000 5 000
2 000 2 000
1 000 1 000
500 500
200 200
100 100
50 50
20 20
10 10
5 5
t(s) t(s)
2 2
TM16D : Im = 12 x In TM25D : Im = 12 x In
1 1
.5 .5
.2 .2
TM16G : Im = 4 x In
.1 .1
.05 .05
.02 .02
.01 t < 10 ms .01 TM25G : t < 10 ms
Im = 3.2 x In
.005 .005
.002 .002
.001 .001
.5 .7 1 2 3 4 5 7 10 20 30 50 70 100 200 300 .5 .7 1 2 3 4 5 7 10 20 30 50 70 100 200 300
I / Ir I / Ir
Reflex tripping.
10 000 10 000
DB404231.eps
DB126606.eps
5 000 5 000
2 000 2 000
1 000 1 000
500 500
200 200
100 100
50 50
20 20
10 TM63D : 8 x In
10
5 5
t(s) t(s)
2 2
TM32D and TM40D :
1 Im = 12.5 x In 1
.5 .5 TM50D : 10 x In
.2 .2
TM40G : TM63G :
.1 .1 2 x In
Im = 2 x In
.05 .05
.02 .02
.01 t < 10 ms .01
.005 .005
.002 .002
.001 .001
.5 .7 1 2 3 4 5 7 10 20 30 50 70 100 200 300 .5 .7 1 2 3 4 5 7 10 20 30 50 70 100 200 300
I / Ir I / Ir
Reflex tripping.
E-2
10 000 10 000
DB114763.eps
DB114764.eps
5 000 5 000
2 000 2 000
1 000 1 000
500 500
200 200
100 100
50 50
20 20
10 10
5 5 TM125D : Im = 10 x In
t(s) t(s)
2 2
1 1
.5 .5 TM160D :
TM80D/TM100D : Im = 8 x In
.2 Im = 8 x In .2
.1 .1
.05 .05
.02 .02
.01 t < 10 ms .01 t < 10 ms
.005 .005
.002 .002
.001 .001
.5 .7 1 2 3 4 5 7 10 20 30 50 70 100 200 300 .5 .7 1 2 3 4 5 7 10 20 30 50 70 100 200 300
I / Ir I / Ir
Reflex tripping.
TM200D / TM250D
10 000
DB114765.eps
5 000
2 000
1 000
500
200
100
50
20
10
5
t(s)
2 TM200D/TM250D :
1 Im = 5 ... 10 x In
.5
.2
.1
.05
.02
.01 t < 10 ms
.005
.002
.001
.5 .7 1 2 3 4 5 7 10 20 30 50 70 100 200 300
I / Ir
Reflex tripping.
E-3
10 000 10 000
DB114766.eps
DB114767.eps
5 000 40 A : Ir = 16 ...40 A 5 000
100 A : Ir = 36 ...100 A 250 A : Ir = 90 ...250 A
2 000 160 A : Ir = 57 ...160 A 2 000
1 000 1 000
500 500
200 200
100 100
50 50
20 20
10 10
5 5
t(s) t(s)
2 2
Isd = 1.5 ...10 x Ir Isd = 1.5 ...10 x Ir
1 1
.5 .5
.2 .2
.1 .1
.05 .05
.02 .02
.01 t < 10 ms .01
t < 10 ms
.005 .005
.002 .002
Ii = 15 x In Ii = 12 x In
.001 .001
.5 .7 1 2 3 4 5 7 10 20 30 50 70 100 200 300 .5 .7 1 2 3 4 5 7 10 20 30 50 70 100 200 300
I / Ir I / Ir
Reflex tripping.
10 000 10 000
DB114768.eps
DB114769.eps
40 A : Ir = 16 ...40 A
5 000 5 000
100 A : Ir = 36 ...100 A 250 A : Ir = 90 ...250 A
2 000 160 A : Ir = 57 ...160 A 2 000
1 000 1 000
500 500
200 200
100 100
50 50
20 20
10 10
5 5
t(s) t(s)
2 2
Isd = 1.5 ...9 x Ir Isd = 1.5 ...9 x Ir
1 1
.5 .5
.2 .2
.1 .1
.05 .05
.02 .02
.01 t < 10 ms .01 t < 10 ms
.005 .005
.002 .002
Ii = 15 x In Ii = 12 x In
.001 .001
.5 .7 1 2 3 4 5 7 10 20 30 50 70 100 200 300 .5 .7 1 2 3 4 5 7 10 20 30 50 70 100 200 300
I / Ir I / Ir
Reflex tripping.
E-4
10 000 10 000
DB114770.eps
DB114771.eps
40 A : Ir = 16 ...40 A
5 000 5 000 250 A : Ir = 90 ...250 A
100 A : Ir = 36 ...100 A
2 000 160 A : Ir = 56 ...160 A 2 000
1 000 1 000
500 500
200 200
100 100
tr = 0.5 ...16 s tr = 0.5 ...16 s
50 50
20 20
10 10
5 5
t(s) Isd = 1.5 ...10 x Ir t(s) Isd = 1.5 ...10 x Ir
2 2
1 1
I²t ON I²t ON
.5 0.4 .5 0.4
0.3 0.3
.2 0.2 .2 0.2
.1 I²t OFF 0.1 .1 I²t OFF 0.1
.05 .05 0
0
.02 .02
.01 .01
.005 t < 10 ms .005 t < 10 ms
.002 .002
Ii = 1.5 ...15 In Ii = 1.5 ...12 In
.001 .001
.5 .7 1 2 3 4 5 7 10 20 5 7 10 20 30 50 .5 .7 1 2 3 4 5 7 10 20 5 7 10 20 30 50
I / Ir I / In I / Ir I / In
Reflex tripping.
10 000
DB114772.eps
5 000
200
100
50
20
10
5
t(s) I²t ON
2
1
.5
0.4
0.3
.2
I²t OFF 0.2
.1 0.1
.05
0
.02
.01
.005
.002
.001
.05 .07 .1 .2 .3 .4 .5 .7 1 2 3 4 5 7 10 20 30
I / In
E-5
10 000 10 000
DB118546.eps
DB115716.eps
5 000 5 000
2 000 2 000
1 000 1 000
500 500 Thermal withstand
20 20
10 10
5 5
t(s) t(s)
2 2
Im = 6 ... 14 x In Im = 9 ... 14 x In
1 Im = 9 ... 14 x In 1
.5 (MA100 4P) .5
.2 .2
.1 .1
.05 .05
.02 .02
.01 t < 10 ms .01 t < 10 ms
.005 .005
.002 .002
.001 .001
.5 .7 1 2 3 4 5 7 10 20 30 50 70 100 200 300 .5 .7 1 2 3 4 5 7 10 20 30 50 70 100 200 300
I / Ir I / Ir
Reflex tripping.
10 000 10 000
DB114775.eps
DB114776.eps
50 A : Ir = 25 ...50 A
5 000 25 A : Ir = 12 ...25 A 5 000
100 A : Ir = 50 ...100 A
2 000 2 000 150 A : Ir = 70 ...150 A
220 A : Ir = 100 ...220 A
1 000 1 000
500 class 20 500 class 20
class 10 class 10
200 200
class 5 class 5
100 100
50 50
20 20
10 10
5 5
t(s) t(s)
2 2
Isd = 5 ...13 x Ir Isd = 5 ...13 x Ir
1 1
.5 .5
.2 .2
.1 .1
.05 .05
.02 .02
.01 t < 10 ms .01 t < 10 ms
.005 .005
.002 .002
Ii = 17 x In Ii = 15 x In
.001 .001
.5 .7 1 2 3 4 5 7 10 20 30 50 70 100 200 300 .5 .7 1 2 3 4 5 7 10 20 30 50 70 100 200 300
I / Ir I / Ir
Reflex tripping.
E-6
10 000 10 000
DB114777.eps
DB114778.eps
50 A : Ir = 25 ...50 A
5 000 5 000 80 A : Ir = 35 ...80 A
25 A : Ir = 12 ...25 A
2 000 2 000 150 A : Ir = 70 ...150 A
class 30 220 A : Ir = 100 ...220 A
1 000 1 000
class 20
500 500 class 30
class 10
class 20
200 class 5 200 class 10
100 100 class 5
50 50
20 20
10 10
5 5
t(s) t(s)
2 2
Isd = 5 ...13 x Ir Isd = 5 ...13 x Ir
1 1
.5 .5
.2 .2
.1 .1
.05 .05
.02 .02
.01 t < 10 ms .01 t < 10 ms
.005 .005
.002 .002
Ii = 17 x In Ii = 15 x In
.001 .001
.5 .7 1 2 3 4 5 7 10 20 30 50 70 100 200 300 .5 .7 1 2 3 4 5 7 10 20 30 50 70 100 200 300
I / Ir I / Ir
Reflex tripping.
10 000
DB114791.eps
5 000
200
100
50
20
10
5
t(s)
2
1
.5
0.4 0.4
0.3 0.3
.2 0.2 0.2
.1 0.1 0.1
.05
0 0
.02
.01
.005
.002
.001
.05 .07 .1 .2 .3 .4 .5 .7 1 2 3 4 5 7 10 20 30
I / In
E-7
10 000 10 000
DB114780.eps
DB114781.eps
5 000 250 A : Ir = 63 ...250 A 5 000
630 A : Ir = 225 ...630 A
400 A : Ir = 144 ...400 A
2 000 2 000
1 000 1 000
500 500
200 200
100 100
50 50
20 20
10 10
5 5
t(s) t(s)
2 2
Isd = 1.5 ...10 x Ir Isd = 1.5 ...10 x Ir
1 1
.5 .5
.2 .2
.1 .1
.05 .05
.02 .02
.01 t < 10 ms .01 t < 10 ms
.005 .005
.002 .002
Ii = 12 x In Ii = 11 x In
.001 .001
.5 .7 1 2 3 4 5 7 10 20 30 50 70 100 200 300 .5 .7 1 2 3 4 5 7 10 20 30 50 70 100 200 300
I / Ir I / Ir
Reflex tripping.
Micrologic 5.3 and 6.3 A or E - 400 A Micrologic 5.3 and 6.3 A or E - 630 A
10 000 10 000
DB114782.eps
DB114783.eps
5 000 5 000
400 A : Ir = 100 ...400 A 630 A : Ir = 225 ...630 A
2 000 2 000
1 000 1 000
500 500
200 200
100 100
tr = 0.5 ...16 s tr = 0.5 ...16 s
50 50
20 20
10 10
5 5
t(s) Isd = 1.5 ...10 x Ir t(s) Isd = 1.5 ...10 x Ir
2 2
1 1
I²t ON I²t ON
.5 0.4 .5 0.4
0.3 0.3
.2 0.2 .2 0.2
.1 I²t OFF 0.1 .1 I²t OFF 0.1
.05 0 .05
0
.02 .02
.01 .01
.005 t < 10 ms .005 t < 10 ms
.002 .002
Ii = 1.5 ...12 In Ii = 1.5 ...11 In
.001 .001
.5 .7 1 2 3 4 5 7 10 20 5 7 10 20 30 50 .5 .7 1 2 3 4 5 7 10 20 5 7 10 20 30 50
I / Ir I / In I / Ir I / In
Reflex tripping.
E-8
10 000
DB114772.eps
5 000
200
100
50
20
10
5
t(s) I²t ON
2
1
.5
0.4
0.3
.2
I²t OFF 0.2
.1 0.1
.05
0
.02
.01
.005
.002
.001
.05 .07 .1 .2 .3 .4 .5 .7 1 2 3 4 5 7 10 20 30
I / In
E-9
10 000 10 000
DB115717.eps
DB115718.eps
5 000 5 000
2 000 2 000
1 000 1 000
500 500
200 200
100 Thermal withstand 100 Thermal withstand
50 50
20 20
10 10
5 5
t(s) t(s)
2 2
1 1
.5 .5
.02 .02
.01 t < 10 ms .01 t < 10 ms
.005 .005
.002 .002
Ii = 15 x In Ii = 13 x In
.001 .001
.5 .7 1 2 3 4 5 7 10 20 30 50 70 100 200 300 .5 .7 1 2 3 4 5 7 10 20 30 50 70 100 200 300
I / In I / In
Reflex tripping.
10 000 10 000
DB114787.eps
DB114788.eps
5 000 5 000
320 A : Ir = 160 ...320 A 500 A : Ir = 250 ...500 A
2 000 2 000
1 000 1 000
500 class 20 500 class 20
class 10 class 10
200 200
class 5 class 5
100 100
50 50
20 20
10 10
5 5
t(s) t(s)
2 2
Isd = 5 ...13 x Ir Isd = 5 ...13 x Ir
1 1
.5 .5
.2 .2
.1 .1
.05 .05
.02 .02
.01 t < 10 ms .01 t < 10 ms
.005 .005
.002 .002
Ii = 15 x In Ii = 13 x In
.001 .001
.5 .7 1 2 3 4 5 7 10 20 30 50 70 100 200 300 .5 .7 1 2 3 4 5 7 10 20 30 50 70 100 200 300
I / Ir I / Ir
Reflex tripping.
E-10
10 000 10 000
DB114789.eps
DB114790.eps
5 000 5 000
320 A : Ir = 160 ...320 A 500 A : Ir = 250 ...500 A
2 000 2 000
1 000 class 30 1 000 class 30
class 20 class 20
500 class 10 500 class 10
class 5 class 5
200 200
100 100
50 50
20 20
10 10
5 5
t(s) t(s)
2 2
Isd = 5 ...13 x Ir Isd = 5 ...13 x Ir
1 1
.5 .5
.2 .2
.1 .1
.05 .05
.02 .02
.01 t < 10 ms .01 t < 10 ms
.005 .005
.002 .002
Ii = 15 x In Ii = 13 x In
.001 .001
.5 .7 1 2 3 4 5 7 10 20 30 50 70 100 200 300 .5 .7 1 2 3 4 5 7 10 20 30 50 70 100 200 300
I / Ir I / Ir
Reflex tripping.
10 000
DB115634.eps
5 000
2 000
Ig = 0.2 ...1 x In
1 000
500
200
100
50
20
10
5
t(s)
2
1
.5
0.4 0.4
0.3 0.3
.2 0.2 0.2
.1 0.1 0.1
.05
0 0
.02
.01
.005
.002
.001
.05 .07 .1 .2 .3 .4 .5 .7 1 2 3 4 5 7 10 20 30
I / In
E-11
DB115721
This system breaks very high fault currents. 20
The device is mechanically tripped via a "piston"
actuated directly by the pressure produced in the
breaking units by the short-circuit. NSX630
For high short-circuits, this system provides a faster
break, thereby ensuring discrimination.
Reflex-tripping curves are exclusively a function of the NSX400
10
circuit-breaker rating.
t
8
(ms)
7
6
NSX250
5
4
NSX100
NSX160
3
2 3 4 6 10 20 30 40 60 100 200
kA rms
E-12
The limiting capacity of a circuit breaker is its aptitude Ics = 100 % Icu
to let through a current, during a short-circuit, that is The exceptional limiting capacity of the Compact NSX range greatly reduces the
less than the prospective short-circuit current. forces created by fault currents in devices.
The result is a major increase in breaking performance.
In particular, the service breaking capacity Ics is equal to 100 % of Icu.
The Ics value, defined by IEC standard 60947-2, is guaranteed by tests comprising
(Isc) the following steps:
DB115719.eps
Prospective b break three times consecutively a fault current equal to 100 % of Icu
Isc peak b check that the device continues to function normally, that is:
Prospective v it conducts the rated current without abnormal temperature rise
current v protection functions perform within the limits specified by the standard
v suitability for isolation is not impaired.
Prospective
Isc Longer service life of electrical installations
Current-limiting circuit breakers greatly reduce the negative effects of short-circuits
Limited Isc
peak on installations.
Actual Thermal effects
current
Less temperature rise in conductors, therefore longer service life for cables.
Limited
Isc Mechanical effects
Reduced electrodynamic forces, therefore less risk of electrical contacts or busbars
(t)
being deformed or broken.
The exceptional limiting capacity of the Compact NSX range is
Electromagnetic effects
due to the rotating double-break technique (very rapid natural
repulsion of contacts and the appearance of two arc voltages Fewer disturbances for measuring devices located near electrical circuits.
in-series with a very steep wave front).
Economy by means of cascading
Cascading is a technique directly derived from current limiting. Circuit breakers with
breaking capacities less than the prospective short-circuit current may be installed
downstream of a limiting circuit breaker. The breaking capacity is reinforced by the
limiting capacity of the upstream device. It follows that substantial savings can be
made on downstream equipment and enclosures.
Example
Is a Cu/PVC cable with a CSA of 10 mm² adequately protected by an NSX160F?
The table above indicates that the permissible stress is 1.32x106 A2s.
All short-circuit currents at the point where an NSX160F (Icu = 35 kA) is installed are
limited with a thermal stress less than 6x105 A2s (curve page E-14).
Cable protection is therefore ensured up to the limit of the breaking capacity of the
circuit breaker.
E-13
Current-limiting curves
Voltage 400/440 V AC Voltage 660/690 V AC
Limited short-circuit current (k peak) Limited short-circuit current (k peak)
300 300
DB413432.eps
DB413433.eps
200 200
146 146
100 100
80 80
70 70
60 L
R 60 HB1 HB2 NSX630
S NSX630
50 H 50 R NSX400
NSX400 L
40 N 40
F R
k peak
S
L NSX250 k peak
H
S HB1 HB2 NSX250
30 30 R
H NSX100
N NSX100
F NSX160 NSX160
20 20 F, N L
B S
10 10 N, H
8 8 F
7 7
6 6
5 5
4 4
2 3 4 6 10 20 30 40 60 100 200 300 2 3 4 6 10 20 30 40 60 100 200 300
65 65
kA rms kA rms
Energy-limiting curves
Voltage 400/440 V AC Voltage 660/690 V AC
Limited energy Limited energy
9 9
DB413434.eps
DB413435.eps
10 10
5 5
3 3
2 2
1.41 1.41
8 8
10 10
5 5
3 3
2 2
7 7
10 10
R HB1 HB2
2 R 2 L NSX630
As 5 S L NSX630 As 5 S
F N H H NSX400
3 NSX400 3
2 2 F, N
R HB1 HB2 NSX250
6 R 6 L
10 B F N H S L NSX250 10 S NSX100
N, H NSX160
NSX100 F
5 NSX160 5
3 3
2 2
5 5
10 10
5 5
3 3
2 2
2 3 4 6 10 20 30 40 50 70 100 150 200 300 2 3 4 6 10 20 30 40 50 70 100 150 200 300
kA rms kA rms
E-14
F-1
NSX100/160/250B/F/N/H/S/L:
fixed/FC device based on separate components
Compact and Vigicompact F-14
Accessories
Compact and Vigicompact NSX100/160/250 F-24
F-3
With electronic trip unit Micrologic 6.2 E (LSIG protection, energy meter)
To be ordered with 2 catalogue numbers: 1 basic frame + 1 trip unit
F-4
Vigicompact NSX100B (25 kA at 380/415 V) equipped with MH Vigi module (200 to 440 V)
Rating 3P 3d 4P 3d 4P 4d
TM16D LV429667 LV429707 LV429967
TM25D LV429666 LV429706 LV429966
TM32D LV429665 LV429705 LV429965
TM40D LV429664 LV429704 LV429964
TM50D LV429663 LV429703 LV429963
TM63D LV429662 LV429702 LV429962
TM80D LV429661 LV429701 LV429961
TM100D LV429660 LV429700 LV429960
Vigicompact NSX160B (25 kA at 380/415 V) equipped with MH Vigi module (200 to 440 V)
Rating 3P 3d 4P 3d 4P 4d
TM80D LV430343 LV430353 LV430363
TM100D LV430342 LV430352 LV430362
TM125D LV430341 LV430351 LV430361
TM160D LV430340 LV430350 LV430360
Vigicompact NSX250B (25 kA at 380/415 V) equipped with MH Vigi module (200 to 440 V)
Rating 3P 3d 4P 3d 4P 4d
TM125D LV431903 LV431913 LV431963
TM160D LV431902 LV431912 LV431962
TM200D LV431901 LV431911 LV431961
TM250D LV431900 LV431910 LV431960
With electronic trip unit Micrologic 2.2 (LSOI protection)
DB115674.eps
Vigicompact NSX100B (25 kA at 380/415 V) equipped with MH Vigi module (200 to 440 V)
Rating 3P 3d 4P 3d, 4d, 3d + N/2
40 LV429975 LV429985
100 LV429974 LV429984
Vigicompact NSX160B (25 kA at 380/415 V) equipped with MH Vigi module (200 to 440 V)
Rating 3P 3d 4P 3d, 4d, 3d + N/2
40 LV430962 LV430997
100 LV430961 LV430996
160 LV430960 LV430995
Vigicompact NSX250B (25 kA at 380/415 V) equipped with MH Vigi module (200 to 440 V)
Rating 3P 3d 4P 3d, 4d, 3d + N/2
100 LV431977 LV431987
160 LV431976 LV431986
250 LV431975 LV431985
With electronic trip unit Micrologic 5.2 A or 5.2 E (LSI protection, ammeter or energy meter)
To be ordered with 2 catalogue numbers: 1 basic frame + 1 trip unit
F-5
With electronic trip unit Micrologic 6.2 E (LSIG protection, energy meter)
To be ordered with 2 catalogue numbers: 1 basic frame + 1 trip unit
F-6
F-7
Vigicompact NSX100F (36 kA at 380/415 V) equipped with MH Vigi module (200 to 440 V)
Rating 3P 3d 4P 3d 4P 4d
TM16D LV429937 LV429947 LV429957
TM25D LV429936 LV429946 LV429956
TM32D LV429935 LV429945 LV429955
TM40D LV429934 LV429944 LV429954
TM50D LV429933 LV429943 LV429953
TM63D LV429932 LV429942 LV429952
TM80D LV429931 LV429941 LV429951
TM100D LV429930 LV429940 LV429950
Vigicompact NSX160F (36 kA at 380/415 V) equipped with MH Vigi module (200 to 440 V)
Rating 3P 3d 4P 3d 4P 4d
TM80D LV430933 LV430943 LV430953
TM100D LV430932 LV430942 LV430952
TM125D LV430931 LV430941 LV430951
TM160D LV430930 LV430940 LV430950
Vigicompact NSX250F (36 kA at 380/415 V) equipped with MH Vigi module (200 to 440 V)
Rating 3P 3d 4P 3d 4P 4d
TM125D LV431933 LV431943 LV431953
TM160D LV431932 LV431942 LV431952
TM200D LV431931 LV431941 LV431951
TM250D LV431930 LV431940 LV431950
With electronic trip unit Micrologic 2.2 (LSOI protection)
DB115674.eps
Vigicompact NSX100F (36 kA at 380/415 V) equipped with MH Vigi module (200 to 440 V)
Rating 3P 3d 4P 3d, 4d, 3d + N/2
40 LV429972 LV429982
100 LV429970 LV429980
Vigicompact NSX160F (36 kA at 380/415 V) equipped with MH Vigi module (200 to 440 V)
Rating 3P 3d 4P 3d, 4d, 3d + N/2
40 LV430973 LV430983
100 LV430971 LV430981
160 LV430970 LV430980
Vigicompact NSX250F (36 kA at 380/415 V) equipped with MH Vigi module (200 to 440 V)
Rating 3P 3d 4P 3d, 4d, 3d + N/2
100 LV431972 LV431982
160 LV431971 LV431981
250 LV431970 LV431980
With electronic trip unit Micrologic 5.2 A or 5.2 E (LSI protection, energy meter)
To be ordered with 2 catalogue numbers: 1 basic frame + 1 trip unit
F-8
With electronic trip unit Micrologic 6.2 E (LSIG protection, energy meter)
To be ordered with 2 catalogue numbers: 1 basic frame + 1 trip unit
F-9
F-10
Rating 3P 3d 4P 3d 4P 4d
TM16D LV429677 LV429687 LV429697
TM25D LV429676 LV429686 LV429696
TM32D LV429675 LV429685 LV429695
TM40D LV429674 LV429684 LV429694
TM50D LV429673 LV429683 LV429693
TM63D LV429672 LV429682 LV429692
TM80D LV429671 LV429681 LV429691
TM100D LV429670 LV429680 LV429690
Compact NSX160H (70 kA at 380/415 V)
Rating 3P 3d 4P 3d 4P 4d
TM80D LV430673 LV430683 LV430693
TM100D LV430672 LV430682 LV430692
TM125D LV430671 LV430681 LV430691
TM160D LV430670 LV430680 LV430690
Compact NSX250H (70 kA at 380/415 V)
Rating 3P 3d 4P 3d 4P 4d
TM125D LV431673 LV431683 LV431693
TM160D LV431672 LV431682 LV431692
TM200D LV431671 LV431681 LV431691
TM250D LV431670 LV431680 LV431690
With electronic trip unit Micrologic 2.2 (LSOI protection)
DB112223.eps
With electronic trip unit Micrologic 6.2 E (LSIG protection, energy meter)
To be ordered with 2 catalogue numbers: 1 basic frame + 1 trip unit
F-11
F-12
Compact NSX100NA
Rating 2P 3P 4P
100 LV429619 LV429629 LV429639
Compact NSX160NA
Rating 2P 3P 4P
160 LV430619 LV430629 LV430639
Mode
OK
Compact NSX250NA
Rating 2P 3P 4P
250 LV431619 LV431629 LV431639
F-13
Compact NSX100
3P 4P
NSX100B (25 kA 380/415 V) LV429014 LV429015
NSX100F (36 kA 380/415 V) LV429003 LV429008
NSX100N (50 kA 380/415 V) LV429006 LV429011
NSX100H (70 kA 380/415 V) LV429004 LV429009
NSX100S (100 kA 380/415 V) LV429018 LV429019
NSX100L (150 kA 380/415 V) LV429005 LV429010
Compact NSX160
3P 4P
NSX160B (25 kA 380/415 V) LV430390 LV430395
NSX160F (36 kA 380/415 V) LV430403 LV430408
NSX160N (50 kA 380/415 V) LV430406 LV430411
NSX160H (70 kA 380/415 V) LV430404 LV430409
NSX160S (100 kA 380/415 V) LV430391 LV430396
NSX160L (150 kA 380/415 V) LV430405 LV430410
Compact NSX250
3P 4P
NSX250B (25 kA 380/415 V) LV431390 LV431395
NSX250F (36 kA 380/415 V) LV431403 LV431408
NSX250N (50 kA 380/415 V) LV431406 LV431411
NSX250H (70 kA 380/415 V) LV431404 LV431409
NSX250S (100 kA 380/415 V) LV431391 LV431396
NSX250L (150 kA 380/415 V) LV431405 LV431410
+ Trip unit
Distribution protection
DB112246.eps
Thermal-magnetic TM-D
Rating 3P 3d 4P 3d 4P 4d
TM16D LV429037 LV429047 LV429057
TM25D LV429036 LV429046 LV429056
TM32D LV429035 LV429045 LV429055
TM40D LV429034 LV429044 LV429054
TM50D LV429033 LV429043 LV429053
TM63D LV429032 LV429042 LV429052
TM80D LV429031 LV429041 LV429051
TM100D LV429030 LV429040 LV429050
TM125D LV430431 LV430441 LV430451
TM160D (1) LV430430 LV430440 LV430450
TM160D (2) LV431432 LV431442 LV431452
TM200D LV431431 LV431441 LV431451
TM250D LV431430 LV431440 LV431450
DB112247.eps
Mode
Micrologic 5.2 A 100 A LV429090 LV429100
Micrologic 5.2 A 160 A LV430490 LV430495
Micrologic 5.2 A 250 A LV431490 LV431495
Micrologic 5.2 E (LSI protection, energy meter)
Rating 3P 3d 4P 3d, 4d, 3d + N/2, 3d + OSN
Micrologic 5.2 E 40 A LV429096 LV429106
Micrologic 5.2 E 100 A LV429095 LV429105
Micrologic 5.2 E 160 A LV430491 LV430496
Micrologic 5.2 E 250 A LV431491 LV431496
Micrologic 6.2 A (LSIG protection, ammeter)
Rating 3P 3d 4P 3d, 4d, 3d + N/2, 3d + OSN
Micrologic 6.2 A 40 A LV429111 LV429136
Micrologic 6.2 A 100 A LV429110 LV429135
Micrologic 6.2 A 160 A LV430505 LV430515
Micrologic 6.2 A 250 A LV431505 LV431515
Micrologic 6.2 E (LSIG protection, energy meter)
Rating 3P 3d 4P 3d, 4d, 3d + N/2, 3d + OSN
Micrologic 6.2 E 40 A LV429116 LV429141
Micrologic 6.2 E 100 A LV429115 LV429140
Micrologic 6.2 E 160 A LV430506 LV430516
Micrologic 6.2 E 250 A LV431506 LV431516
(1) For NSX160.
(2) For NSX250.
F-14
Magnetic MA (I protection)
Rating 3P 3d 4P 3d
MA2.5 LV429125
MA6.3 LV429124
MA12.5 LV429123
MA25 LV429122
MA50 LV429121
MA100 LV429120 LV429130
MA150 LV430500 LV430510
MA220 LV431500 LV431510
DB112247.eps
Mode
Micrologic 6.2 E-M 50 A LV429182
Micrologic 6.2 E-M 80 A LV429180
Micrologic 6.2 E-M 150 A LV430521
Micrologic 6.2 E-M 220 A LV431521
Generator protection
Thermal-magnetic TM-G
DB112246.eps
Rating 3P 3d 4P 4d
TM16G LV429155 LV429165
TM25G LV429154 LV429164
TM40G LV429153 LV429163
TM63G LV429152 LV429162
TM80G LV430080 (1) LV430092 (1)
TM100G LV430081 (1) LV430093 (1)
TM125G LV430082 (1) LV430094 (1)
TM160G LV430083 (1) LV430095 (1)
TM200G LV430084 (1) LV430096 (1)
TM250G LV430085 (1) LV430097 (1)
DB112247.eps
Mode
Micrologic 5.2 A-Z 250 A LV431489
3P 4P
ME type for NSX100/160 (200 to 440 V) LV429212 LV429213
MH type for NSX100/160 (200 to 440 V) LV429210 LV429211
MH type for NSX250 (200 to 440 V) LV431535 LV431536
MH type for NSX100/160 (440 to 550 V) LV429215 LV429216
MH type for NSX250 (440 to 550 V) LV431533 LV431534
Connection for a 4P Vigi on a 3P breaker LV429214
Insulation monitoring module
DB112249.eps
3P 4P
200 to 440 V AC LV429459 LV429460
Connection for a 4P insulation monitoring LV429214
module on a 3P breaker
F-15
F-16
F-17
F-18
F-19
F-20
F-21
25-100 A LV429521
150-250 A LV430563
24-30 V DC 54440
48-60 V DC 54441
100-125 V DC 54442
110-130 V AC 54443
200-240 V AC 54444
380-415 V AC 54445
Battery module
24 V DC battery module 54446
DB112729.eps
L4
L3 Inpu
t
24VDC
Output
AD 24VDC G2
220A
G1
F-22
Short RC kit
Kit 3P 3 x LV429235
Kit 4P 4 x LV429235
Mixed RC kit
Kit 3P Short RCs 2x LV429235
Long RCs 1x LV429236
Kit 4P Short RCs 2x LV429235
Long RCs 2x LV429236
2P (3P) 3P 4P
Plug-in kit LV429288 LV429289 LV429290
Comprising:
Base = 1 x LV429265 = 1 x LV429266 = 1 x LV429267
Power connections + 2 x LV429268 + 3 x LV429268 + 4 x LV429268
Short terminal shields + 2 x LV429515 + 2 x LV429515 + 2 x LV429516
Safety trip interlock + 1 x LV429270 + 1 x LV429270 + 1 x LV429270
3P 4P
Vigicompact plug-in kit LV429291 LV429292
Comprising:
Base = 1 x LV429266 = 1 x LV429267
Power connections + 3 x LV429269 + 4 x LV429269
Short terminal shields + 2 x LV429515 + 2 x LV429516
Safety trip interlock + 1 x LV429270 + 1 x LV429270
2P (3P) 3P 4P
Kit for Compact Kit for Compact Kit for Compact
= = =
Plug-in kit 1 x LV429288 1 x LV429289 1 x LV429290
+ + +
Chassis side plates 1 x LV429282 1 x LV429282 1 x LV429282
for base + + +
Chassis side plates 1 x LV429283 1 x LV429283 1 x LV429283
for breaker
3P 4P
Kit for Vigicompact Kit for Vigicompact
= =
Plug-in kit 1 x LV429291 1 x LV429292
+ +
Chassis side plates 1 x LV429282 1 x LV429282
for base + +
Chassis side plates 1 x LV429283 1 x LV429283
for breaker
F-23
2 short LV429235
2 long LV429236
Set of 4 LV429228
1 x (120 to 185 mm²) ; y 250 A Set of 3 LV429259
Set of 4 LV429260
DB112726.eps
Set of 3 LV429218
Set of 4 LV429219
Set of 3 LV429248
Set of 4 LV429249
DB112724.eps
1P 04031
250 A (40 °C) 9 cables S y 10 mm² 3P 04033
4P 04034
Terminal extensions
45° terminal extension (1)
DB112230.eps
Set of 3 LV429223
Set of 4 LV429224
Set of 3 LV429308
Set of 4 LV429309
Set of 3 LV429261
Set of 4 LV429262
Set of 3 LV429263
Set of 4 LV429264
Set of 3 LV429221
Set of 4 LV429222
3P LV431563
4P LV431564
DB112236.eps
F-24
F-25
Electrical auxiliaries
Auxiliary contacts (changeover)
DB112254.eps
SDTAM contactor tripping module (early-break thermal fault signal) for Micrologic 2.2 M/6.2 E-M
DB112276.eps
Voltage releases
DB111454.eps
Voltage MX MN
AC 24 V 50/60 Hz LV429384 LV429404
48 V 50/60 Hz LV429385 LV429405
110-130 V 50/60 Hz LV429386 LV429406
220-240 V 50/60 Hz and 208-277 V 60 Hz LV429387 LV429407
380-415 V 50 Hz and 440-480 V 60 Hz LV429388 LV429408
525 V 50 Hz and 600 V 60 Hz LV429389 LV429409
DC 12 V LV429382 LV429402
24 V LV429390 LV429410
30 V LV429391 LV429411
48 V LV429392 LV429412
60 V LV429383 LV429403
125 V LV429393 LV429413
250 V LV429394 LV429414
MN 48 V 50/60 Hz with fixed time delay
DB115631.eps
F-26
Motor mechanism
Motor mechanism module supplied with SDE adapter
DB125554.eps
+
Breaker and Status BSCM LV434205
Communication Module
+
NSX cord Wire length L = 0.35 m LV434200
Wire length L = 1.3 m LV434201
Wire length L = 3 m LV434202
U > 480 V AC wire length L = 0.35 m LV434204
F-27
3P/4P LV429325
Rotary handles
Direct rotary handle
DB112259.eps
F-28
Locks
Toggle locking device for 1 to 3 padlocks
DB112261.eps
LV429371
F-29
Interlocking
Mechanical interlocking for circuit breakers
DB111486.eps
LV429344
1 set of 2 keylocks Ronis 1351B.500 41950
(1 key only, keylock kit not included) Profalux KS5 B24 D4Z 42878
Installation accessories
Front-panel escutcheons
DB112269.eps
IP30
DB112737.eps
IP40
Lead-sealing accessories
DB115615.eps
1 adapter LV429305
60 mm plate
DB111428.eps
F-30
Auxiliary connections
1 9-wire fixed connector (for base) LV429273
DB117160.eps
LV429272
Base 4P LV429267
DB117168.eps
Chassis accessories
DB117172.eps
F-31
Spare parts
DB111430.eps
NS retrofit escutcheon
DB111432.eps
LV429226
DB111429.eps
Micrologic 6 LV429484
Micrologic 6 E-M LV429486
DB111436.eps
Individual enclosures
IP55 steel enclosure
DB112270.eps
F-32
(3)
DB115622.eps DB111443.eps
L4
L3 Inpu
t
24VDC
Output
AD 24VDC G2
220A
G1
(1) SDE adapter mandatory for trip unit TM, MA or Micrologic 2 (LV429451).
(2) For measurement display with Micrologic A and E or status display with BSCM.
(3) See Telemecanique catalogue.
F-33
(1)
Bluetooth/Modbus option for USB maintenance interface VW3A8114
Software
Configuration and setting software RSU LV4ST100 (2)
DB117158.eps
(2)
Test software LTU LV4ST121
(2)
Monitoring software RCU LV4SM100
Demo tool
Demo case for Compact NSX LV434207
(1) See Telemecanique catalogue.
(2) Downloadable from http://schneider-electric.com.
F-34
Instructions
User manual
Circuit breaker (French) LV434100
(English) LV434101
Micrologic 5.6 (French) LV434103
(English) LV434104
Modbus (French) LV434106
(English) LV434107
ULP (French) TRV99100
(English) TRV99101
F-35
NSX400/630F/N/H/S/L:
fixed/FC device based on separate components
Compact and Vigicompact F-44
Accessories
Compact and Vigicompact NSX400/630 F-51
F-37
OK
Mode
With electronic trip unit Micrologic 5.3 E (LSI protection, energy meter)
To be ordered with 2 catalogue numbers: 1 basic frame + 1 trip unit
With electronic trip unit Micrologic 6.3 E (LSIG protection, energy meter)
To be ordered with 2 catalogue numbers: 1 basic frame + 1 trip unit
With electronic trip unit Micrologic 6.3 E-M (LSIG motor protection, energy meter)
To be ordered with 2 catalogue numbers: 1 basic frame + 1 trip unit
F-38
OK
Mode
With electronic trip unit Micrologic 5.3 E (LSI protection, energy meter)
To be ordered with 2 catalogue numbers: 1 basic frame + 1 trip unit
With electronic trip unit Micrologic 6.3 E (LSIG protection, energy meter)
To be ordered with 2 catalogue numbers: 1 basic frame + 1 trip unit
With electronic trip unit Micrologic 6.3 E-M (LSIG motor protection, energy meter)
To be ordered with 2 catalogue numbers: 1 basic frame + 1 trip unit
F-39
OK
Mode
With electronic trip unit Micrologic 5.3 E (LSI protection, energy meter)
To be ordered with 2 catalogue numbers: 1 basic frame + 1 trip unit
With electronic trip unit Micrologic 6.3 E (LSIG protection, energy meter)
To be ordered with 2 catalogue numbers: 1 basic frame + 1 trip unit
With electronic trip unit Micrologic 6.3 E-M (LSIG motor protection, energy meter)
To be ordered with 2 catalogue numbers: 1 basic frame + 1 trip unit
F-40
OK
Mode
With electronic trip unit Micrologic 5.3 E (LSI protection, energy meter)
To be ordered with 2 catalogue numbers: 1 basic frame + 1 trip unit
F-41
OK
Mode
With electronic trip unit Micrologic 6.3 E (LSIG protection, energy meter)
Only available as separate components.
With electronic trip unit Micrologic 6.3 E-M (LSIG motor protection, energy meter)
Only available as separate components.
F-42
F-43
3P 4P
NSX400F (36 kA 380/415 V) LV432413 LV432415
NSX400N (50 kA 380/415 V) LV432403 LV432408
NSX400H (70 kA 380/415 V) LV432404 LV432409
NSX400S (100 kA 380/415 V) LV432414 LV432416
NSX400L (150 kA 380/415 V) LV432405 LV432410
Compact NSX630
3P 4P
NSX630F (36 kA 380/415 V) LV432813 LV432815
NSX630N (50 kA 380/415 V) LV432803 LV432808
NSX630H (70 kA 380/415 V) LV432804 LV432809
NSX630S (100 kA 380/415 V) LV432814 LV432816
NSX630L (150 kA 380/415 V) LV432805 LV432810
+ Trip unit
Distribution protection
Micrologic 2.3 (LSOI protection)
DB111461.eps
Mode
Rating 3P 3d 4P 3d
Micrologic 1.3 M 320 A LV432069 LV432078
Micrologic 1.3 M 500 A LV432068 LV432077
Rating 3P 3d
Micrologic 2.3 M 320 A LV432072
Micrologic 2.3 M 500 A LV432071
Rating 3P 3d
Micrologic 6.3 E-M 320 A LV432075
OK
Micrologic 6.3 E-M 500 A LV432074
Mode
F-44
OK
Mode
OK
Mode
With electronic trip unit Micrologic 6.3 E-M (LSIG motor protection, energy meter)
3P 3d
DB111457.eps
F-45
OK
Mode
OK
Mode
With electronic trip unit Micrologic 6.3 E-M (LSIG motor protection, energy meter)
3P 3d
DB111457.eps
F-46
OK
Mode
OK
Mode
With electronic trip unit Micrologic 6.3 E-M (LSIG motor protection, energy meter)
3P 3d
DB111457.eps
F-47
48-60 V DC 54441
100-125 V DC 54442
110-130 V AC 54443
200-240 V AC 54444
380-415 V AC 54445
Battery module
24 V DC battery module 54446
DB112729.eps
L4
L3 Inpu
t
24VDC
Output
AD 24VDC G2
220A
G1
F-48
Fixed/FC device with 52.5 mm or 70 mm pitch = fixed/FC device with 45 mm pitch + spreaders
The pitch of all Compact and Vigicompact NSX400/630 devices is 45 mm. Spreaders are available for fixed front, plug-in or withdrawable connection with pitch of
52.5 mm or 70 mm.
4P LV432491
70 mm 3P LV432492
4P LV432493
F-49
F-50
2 long LV432476
Set of 4 LV432480
Set of 4 LV432587
Set of 4 LV432487
Set of 4 LV432485
Set of 4 LV432501
For cable 300 mm² Set of 3 LV432502
Set of 4 LV432503
Supplied with 2 or 3 interphase barriers
Crimp lugs for aluminium cable (1)
For cable 240 mm² Set of 3 LV432504
DB112238.eps
Set of 4 LV432505
For cable 300 mm² Set of 3 LV432506
Set of 4 LV432507
Supplied with 2 or 3 interphase barriers
(1) Supplied with 2 or 3 interphase barriers.
F-51
Insulation accessories
Short terminal shield, 45 mm (1 piece) 3P LV432591
DB111472.eps
4P LV432592
4P LV432594
Long terminal shield for spreaders, 52.5 mm (1 piece) (supplied with insulating plate) 3 P LV432595
DB115626.eps
4P LV432596
4P LV432585
4P LV432579
F-52
Electrical auxiliaries
Auxiliary contacts (changeover)
OF or SD or SDE or SDV 29450
DB112254.eps
SDTAM contactor tripping module (early-break thermal fault signal) for Micrologic 2.3 M/6.3 E-M
SDTAM 24/415 V AC/DC overload fault indication LV429424
DB112276.eps
Voltage releases
Voltage MX MN
DB111454.eps
F-53
Motor mechanism
Motor mechanism module
Voltage MT400-630
DB111475.eps
DC 24-30 V LV432643
man
u
auto
48-60 V LV432644
110-130 V LV432645
250 V LV432646
Operation counter LV432648
Communicating motor mechanism module
Motor mechanism module MTc 400/630 220-240 V 50/60 Hz LV432652
DB111476.eps
Ø5...8
+
auto
u
man
+
NSX cord Wire length L = 0.35 m LV434200
Wire length L = 1.3 m LV434201
Wire length L = 3 m LV434202
U > 480 V AC wire length L = 0.35 m LV434204
Indication and measurement modules
Ammeter module
Rating (A) 400 630
DB111477.eps
3P LV432655 LV432855
4P LV432656 LV432856
A
3P LV434852 LV434853
3P LV432657 LV432857
4P LV432658 LV432858
3P LV432653 LV432861
4P LV432654 LV432862
F-54
Rotary handles
Direct rotary handle
With black handle LV432597
DB111480.eps
F-55
Interlocking
Mechanical interlocking for circuit breakers
With toggles LV432614
DB111487.eps DB111486.eps
Installation accessories
Front-panel escutcheons
IP30 escutcheon for all control types LV432557
DB111488.eps
IP30
IP40
IP43 rubber toggle cover
1 toggle cover LV432560
DB111490.eps
Lead-sealing accessories
Bag of accessories LV429375
DB115615.eps
60 mm plate
Plate 3P Compact NSX400/630 IEC LV432623
DB111491.eps
L3
Plate 4P Compact NSX400/630 IEC LV432624
L2
L1
20 Nm
L2
20 Nm
L3
20 Nm
L3
2
L2
L1
F-56
4P LV432585
Auxiliary connections
1 9-wire fixed connector (for base) LV429273
DB117160.eps
Base 3P LV432516
Base 4P LV432517
DB117181.eps
Chassis accessories
Escutcheon collar Toggle LV432534
DB117172.eps
F-57
Spare parts
Additional toggle extension for NSX400/630 32595
DB115633.eps
Mod
e
OK
Micrologic 6 LV429484
Micrologic E-M LV429486
Individual enclosures
IP55 steel enclosure
Compact NSX400 with black extended rotary handle LV431219
DB111496.eps
Compact NSX400 with red and yellow extended rotary handle LV431220
Compact NSX630 or Vigicompact NSX400/630 with black extended rotary handle LV431221
Compact NSX630 or Vigicompact NSX400/630 with red and yellow extended rotary handle LV431222
F-58
24-30 V DC 54440
48-60 V DC 54441
100-125 V AC 54442
110-130 V AC 54443
200-240 V AC 54444
380-415 V AC 54445
Battery module
24 V DC battery module 54446
DB112729.eps
L4
L3 Inpu
t
24VDC
Output
AD 24VDC G2
220A
G1
(1) For measurement display with Micrologic A and E or status display with BSCM.
(2) See Telemecanique catalogue.
F-59
0
Test
Software
Configuration and setting software RSU LV4ST100 (2)
DB117158.eps
Demo tool
Demo case for Compact NSX LV434207
(1) See Telemecanique catalogue.
(2) Downloadable from http://schneider-electric.com.
F-60
Instructions
User manual
Circuit breaker (French) LV434100
(English) LV434101
Micrologic 5.6 (French) LV434103
(English) LV434104
Modbus (French) LV434106
(English) LV434107
ULP (French) TRV99100
(English) TRV99101
F-61
NSX400...630 LV432614
NSX400...630 LV432621
440 V 60 Hz
NSX100...250/NSX100...250
Plate + IVE (1) 29351 29350
Plate 29349 29349
IVE 29356 29352
Auxiliary switches 2 OF + 2 SDE 4 x 29450 4 x 29450
Spare wiring system (device/IVE) 29365 29365
Back sockets option add: Only long RC (2) (2)
NSX400...630/NSX100...630
Plate + IVE (1) 32611 32610
Plate 32609 32609
IVE 29356 29352
Auxiliary switches 2 OF + 2 SDE 4 x 29450 4 x 29450
Spare wiring system (device/IVE) 29365 29365
Back sockets option add: Only long RC (2) (2)
440 V 60 Hz
ACP + control unit BA (1) 29470 29471
0 . OFF
0 . OFF
110-240 V AC / 115-125 V DC
9600
19200
5
3 7
1 9
N°1 N°2 N°1
15
13
5
3 7
1 9 N°2
15
13
(1) The supply voltages BA/UA control unit, ACP plate, IVE and the remote control must be identical whatever the source changeover type.
(2) See products pages.
F-62
Connection accessories
Downstream coupling accessories
Short terminal shields (1 pair) + “normal” source/“replacement” source
DB101062.eps
3P 4P
NSX100...250/NSX100...250/ 250 A LV429358 LV429359
NSX400...630/NSX400...630 - LV432594
0 . OFF
0 . OFF
+ 1 ACP (9) with BA control unit (10)
Or + 1 ACP (9) with UA control unit (11)
Or + 1 ACP (9) with UA150 control unit (11)
+ extension (12) for remote UA/BA connection on front of switchboard
F-63
Compact NSX
Rating 4P
NSX100F Micrologic AB 100 LV434562
NSX160F Micrologic AB 160 LV434563
NSX250F Micrologic AB 240 LV434564
NSX400F Micrologic AB 400 LV434565
Vigicompact NSX
Rating 4P
NSX100F Micrologic AB 100 LV434572
NSX160F Micrologic AB 160 LV434573
NSX250F Micrologic AB 240 LV434574
NSX400F Micrologic AB 400 LV434575
F-64
Compact NSX100F
Rating 4P 3d 4P 4d
TM40D LV429644 LV429654
TM63D LV429642 LV429652
TM80D LV429641 LV429651
TM100D LV429640 LV429650
Compact NSX160F
Rating 4P 3d 4P 4d
TM80D LV430643 LV430653
TM100D LV430642 LV430652
TM125D LV430641 LV430651
TM160D LV430640 LV430650
Compact NSX250F
Rating 4P 3d 4P 4d
TM125D LV431643 LV431653
TM160D LV431642 LV431652
TM200D LV431641 LV431651
TM250D LV431640 LV431650
Compact NSX400F
4P 3d 4P 4d
Micrologic 2.3 LV432677 LV432677
Vigicompact NSX with normal trip unit
DB112243.eps
Compact NSX100F
Rating 4P 3d 4P 4d
TM40D LV429944 LV429954
TM63D LV429942 LV429952
TM80D LV429941 LV429951
TM100D LV429940 LV429950
Compact NSX160F
Rating 4P 3d 4P 4d
TM80D LV430943 LV430953
TM100D LV430942 LV430952
TM125D LV430941 LV430951
TM160D LV430940 LV430950
Compact NSX250F
Rating 4P 3d 4P 4d
TM125D LV431943 LV431953
TM160D LV431942 LV431952
TM200D LV431941 LV431951
TM250D LV431940 LV431950
Compact NSX400F
4P 3d 4P 4d
Micrologic 2.3 LV432732 LV432732
F-65
4P
Compact INV100 For Compact NSX100 31161
Compact INV160 For Compact NSX160 31165
Compact INV200 For Compact NSX250 31163
Compact INV250 For Compact NSX250 31167
DB403052.eps
4P
Compact INV320 For Compact NSX400 31169
Compact INV400 For Compact NSX400 31171
Spare viewport
DB403061.eps
Flexible connection assembly for vertical INV100 to 250 with NSX horizontal N (1)
DB403063.eps
04443
Flexible connection assembly for vertical INV100 to 250 with NSX horizontal V (1) 04444
Flexible connection assembly for vertical INV320 to 630 with NSX horizontal N (1) 04445
Flexible connection assembly for vertical INV320 to 630 with NSX horizontal V (1) 04446
Flexible connection assembly for vertical INV100 to 250 with vertical NSX250 beside 31071
Flexible connection assembly for vertical INV320 to 630 with vertical NSX400/630 beside 31072
Flexible connection assembly for vertical INV320 to 630 with vertical NSX250 beside 31093
(1) Product sold by MGA and valid for new Prisma Plus only.
F-66
F-67
F-68
Accessories G-2
Circuit-breaker characteristics (IEC 60947-2) G-2
Communication G-4
Components G-5
Controls G-5
Harmonics G-7
Measurements G-8
Protection G-9
G-1
For each major section (Accessories, Switchgear, etc.) and for each item (Adapter
for plug-in base, Connection terminal, etc.), this glossary provides:
b the page number in the concerned catalogue
b the reference standard
b the standardised IEC symbol
b the definition.
Text in quotation marks is drawn from the standards.
Accessories ...................................................................................................
Adapter for plug-in base A-76 The adapter is a plastic component that can be installed upstream and/or
downstream of the plug-in base and enables use of all the connection accessories of
the fixed device.
Bare-cable connector A-75 Conducting part of the circuit breaker intended for connection to power circuits. On
Compact NSX, it is an aluminium part that screws to the connection terminals of the
circuit breaker. There are one or more holes (single or multiple cable connector) for
the ends of bare cables.
Connection terminals A-74 Flat copper surface, linked to the conducting parts of the circuit breaker and to which
power connections are made using bars, connectors or lugs.
One-piece spreader A-74 The spreader is a plastic component with copper connectors that can be installed
upstream and/or downstream of a Compact NSX100 to 250 circuit breaker with a
pole pitch of 35 mm. It increases the pitch of the circuit-breaker terminals to the
45 mm pitch of a NSX400/630 device to facilitate connection of large cables.
Spreaders A-74 Set of three (3P device) or four (4P) flat, conducting parts made of aluminium. They
are screwed to the circuit-breaker terminals to increase the pitch between poles.
Degree of protection (IP) A-3 Defines device protection against the penetration of solid objects and liquids, using
IEC 60529 two digits specified in standard IEC 60259. Each digit corresponds to a level of
protection, where 0 indicates no protection.
b First digit (0 to 6): protection against penetration of solid foreign objects.
1 corresponds to protection against objects with a diameter > 50 mm, 6 corresponds
to total protection against dust.
b Second digit (0 to 8): protection against penetration of liquids (water).
1 corresponds to protection against falling drops of water (condensation),
8 corresponds to continuous immersion.
The enclosure of Compact NSX circuit breakers provides a minimum of IP40
(protection against objects > 1 mm) and can reach IP56 (protection against dust and
powerful water jets) depending on the installation conditions.
Degree of protection against A-6 Defines the aptitude of an object to resist mechanical impacts on all sides, indicated
external mechanical impacts (IK) by a number from 0 to 10 (standard IEC 62262). Each number corresponds to the
impact energy (in Joules) that the object can handle according to a standardised
procedure.
0 corresponds to no protection, 1 to an impact energy of 0.14 Joules, 10 to an impact
energy of 20 Joules. Compact NSX provide IK07 (2 Joules) and can provide IK08
(5 Joules) depending on the installation conditions.
Durability A-6 The term "durability" is used in the standards instead of "endurance" to express the
expectancy of the number of operating cycles which can be performed by the
equipment before repair or replacement of parts. The term "endurance" is used for
specifically defined operational performance.
Electrical durability A-6 With respect to its resistance to electrical wear, equipment is characterised by the
IEC 60947-1 number of on-load operating cycles, corresponding to the service conditions given in
the relevant product standard, which can be made without re replacement.
G-2
Insulation class A-3 Defines the type of device insulation in terms of earthing and the corresponding
safety for user, in one of three classes.
b Class I. The device is earthed. Any electrical faults, internal or external, or caused
by the load, are cleared via the earthing circuit, thus ensuring user safety.
b Class II. The device is not connected to a protective conductor. User safety is
ensured by reinforced insulation around the live parts (an insulating case and no
contact with live parts, i.e. plastic buttons, moulded connections, etc.) or double
insulation.
b Class III. The device may be connected only to SELV (safety extra-low voltage)
circuits. The Compact NSX are class II devices (front) and may be installed through
the door in class II switchboards (standards IEC 61140 and IEC 60664-1), without
reducing insulation, even with a rotary handle or motor mechanism module.
Making capacity Value of prospective making current that a switching device is capable of making at a
stated voltage under prescribed conditions of use and behaviour. Reference is
generally made to the short-circuit making capacity Icm.
Maximum break time A-17 Maximum time after which breaking is effective, i.e. the contacts separated and the
current completely interrupted.
Mechanical durability A-6 With respect to its resistance to mechanical wear, equipment is characterised by the
number of no-load operating cycles which can be effected before it becomes
necessary to service or replace any mechanical parts.
Non-tripping time A-19 This is the minimum time during which the protective device does not operate in spite
of pick-up overrun, if the duration of the overrun does not exceed the corresponding
voluntary time delay.
Pollution degree A-6 "Conventional number based on the amount of conductive or hygroscopic dust,
of environment conditions ionized gas or salt and on the relative humidity and its frequency of occurrence,
resulting in hygroscopic absorption or condensation of moisture leading to reduction
IEC 60947-1 in dielectric strength and/or surface resistivity". Standard IEC 60947-1 distinguishes
IEC 60664-1 four pollution degrees.
b Degree 1. No pollution or only dry, non-conductive pollution occurs.
b Degree 2. Normally, only non-conductive pollution occurs. Occasionally, however,
a temporary conductivity caused by condensation may be expected.
b Degree 3. Conductive pollution occurs, or dry, non-conductive pollution occurs
which becomes conductive due to condensation.
b Degree 4. The pollution generates persistent conductivity caused, for instance, by
conductive dust or by rain or snow. Compact NSX meets degree 3, which
corresponds to industrial applications.
Prospective short-circuit current E-13 Current that would flow through the poles if they remained fully closed during the
short-circuit.
Rated current (In) A-6 This is the current that the device can carry continuously with the contacts closed
and without abnormal temperature rise.
Rated impulse withstand voltage A-6 "The peak value of an impulse voltage of prescribed form and polarity which the
(Uimp) equipment is capable of withstanding without failure under specified conditions of
test and to which the values of the clearances are referred. The rated impulse
withstand voltage of an equipment shall be equal to or higher than the values stated
for the transient overvoltages occurring in the circuit in which the equipment is fitted".
Rated insulation voltage (Ui) A-6 "The rated insulation voltage of an equipment is the value of voltage to which
dielectric tests and creepage distances are referred. In no case shall the maximum
value of the rated operational voltage exceed that of the rated insulation voltage".
Rated operational current (Ie) "A rated operational current of an equipment is stated by the manufacturer and takes
into account the rated operational voltage, the rated frequency, the rated duty, the
utilization category and the type of protective enclosure, if appropriate".
Rated operational voltage (Ue) A-6 "A value of voltage which, combined with a rated operational current, determines the
application of the equipment and to which the relevant tests and the utilisation
categories are referred. For multipole equipment, it is generally stated as the voltage
between phases".
This is the maximum continuous voltage at which the equipment may be used.
G-3
Rated short-time withstand current "Value of short-time withstand current, assigned to the equipment by the
(Icw) manufacturer, that the equipment can carry without damage, under the test
conditions specified in the relevant product standard". Generally expressed in kA for
0.5, 1 or 3 seconds. This is an essential characteristic for air circuit breakers. It is not
significant for moulded-case circuit breakers for which the design targets fast
opening and high limiting capacity.
Service breaking capacity (Ics) A-6 Expressed as a percentage of Icu, it provides an indication on the robustness of the
device under severe conditions. It is confirmed by a test with one opening and one
closing/opening at Ics, followed by a check that the device operates correctly at its
rated current, i.e. 50 cycles at In, where temperature rise remains within tolerances
and the protection system suffers no damage.
Short-circuit making capacity (Icm) A-62 Value indicating the capacity of the device to make and carry a high current without
repulsion of the contacts. It is expressed in kA peak.
Suitability for isolation A-3 This capability means that the circuit breaker meets the conditions below.
(see also Positive contact indication, b In the open position, it must withstand, without flashover between the upstream
and downstream contacts, the impulse voltage specified by the standard as a
page G-5) function of the Uimp indicated on the device.
b It must indicate contact position by one or more of the following systems:
v position of the operating handle
v separate mechanical indicator
v visible break of the moving contacts
b Leakage current between each pole, with the contacts open, at a test voltage of
1.1 x the rated operating voltage, must not exceed:
v 0.5 mA per pole for new devices
v 2 mA per pole for devices already subjected to normal switching operations
v 6 mA, the maximum value that must never be exceeded.
b It must not be possible to install padlocks unless the contacts are open. Locking in
the closed position is permissible for special applications. Compact NSX complies
with this requirement by positive contact indication.
Suitable for isolation with positive A-3 Suitability for isolation is defined here by the mechanical reliability of the position
contact indication indicator of the operating mechanism, where:
b the isolation position corresponds to the O (OFF) position
(see also Suitability for isolation, page b the operating handle cannot indicate the "OFF" position unless the contacts are
G2) effectively open.
The other conditions for isolation must all be fulfilled:
b locking in the open position is possible only if the contacts are effectively open
b leakage currents are below the standardised limits
b overvoltage impulse withstand between upstream and downstream connections.
Ultimate breaking capacity (Icu) A-6 Expressed in kA, it indicates the maximum breaking capacity of the circuit breaker. It
is confirmed by a test with one opening and one closing/opening at Icu, followed by a
check that the circuit is properly isolated. This test ensures user safety.
Communication.............................................................................................
BSCM A-29 The optional BSCM for Compact NSX is used to acquire device status indications
(Breaker status and control module) and control the communicating remote-control function. It includes a memory used to
manage the maintenance indicators. It serves as a converter between the analog
outputs of the device indication contacts (O/F, SD, SDE) and the digital
communicating functions.
Ethernet TCP/IP A-30 Ethernet is a very common network protocol and complies with IEEE standard 802.3.
(Transmission Control Protocol / Ethernet TCP/IP is the protocol that brings web functions to Ethernet networks.
Most PCs have an Ethernet 10/100 card (10 or 100 Mbit/s) for connection to the
Internet Protocol) internet. Data communicated from Compact NSX via Modbus are accessible on a
PC via a TCP/IP-Modbus gateway such as MPS100 or EGX100.
Open protocol 3 A protocol for system communication, interconnection or data exchange for which
technical specifications are public, i.e. there are no restrictions on access or
implementation. An open protocol is the opposite of a proprietary protocol.
Protocol A-30 Standardised specification for dialog between digital components that exchange
data. It is an operating mode based on the length and structure of binary words and it
must be used by all the components exchanging data between themselves.
Communication is not possible without using a protocol.
G-4
RS485 Modbus A-18 Modbus is the most widely used communication protocol in industrial networks. It
operates in master-slave mode. An RS485 multipoint link connects the master and
slaves via a pair of wires offering throughputs of up to 38400 bits/second over
distances up to 1200 m). The master cyclically polls the slaves which send back the
requested information.
The Modbus protocol uses frames containing the address of the targeted slave, the
function (read, write), the datum and the CRC (cyclical redundancy check).
SDTAM A-85 Relay module with two static outputs specifically for the motor-protection Micrologic
trip units 1 M, 2 M and 6 E-M. An output, linked to the contactor controller, opens the
contactor when an overload or other motor fault occurs, thus avoiding opening of the
circuit breaker. The other output stores the opening event in memory.
SDx A-85 Relay module with two outputs that remotes the trip or alarm conditions of
Compact NSX circuit breakers equipped with a Micrologic electronic trip unit.
Static output A-85 Output of a relay made up of a thyristor or triac electronic component. The low
switching capability means that a power relay is required.
This is the case for the SDx and SDTAM outputs.
ULP (Universal Logic Plug) A-33 Connection system used by Compact NSX to communicate information to the
Modbus interface via a simple RJ45 cable. Compatible modules are indicated by the
symbol opposite.
Components...................................................................................................
ASIC (Application Specific Integrated A-10 Integrated circuit designed, built and intended for a specific application. It carries out
Circuit) repetitive sequences of instructions engraved in the silicon chip. For that reason, it is
extremely reliable because it cannot be modified and is not affected by environment
conditions.
Micrologic trip units use an ASIC for the protection functions. The ASIC cyclically
polls the network status at a high frequency, using the values supplied by captors.
Comparison with the settings forms the basis for orders to the electronic trip units.
Microprocessor A-10 A microprocessor is a more general purpose device than an ASIC. In Micrologic, a
microprocessor is used for measurements and it can be programmed. It is not used
for the main protection functions that are carried out by the ASIC.
Controls .........................................................................................................
Communicating motor mechanism A-86 For Compact NSX remote control via the communication system, a communicating
motor mechanism is required. Except for the communication function, it is identical to
the standard motor mechanism module and connects to and controlled by the BSCM
module.
CNOMO machine-tool rotary handle A-88 Handle used for machine-tool control enclosures and providing IP54 and IK08.
Direct rotary handle A-88 This is an optional control handle for the circuit breaker. It has the same three
positions I (ON), O (OFF) and TRIPPED as the toggle control. It provides IP40, IK07
and the possibility, due to its extended travel, of using early-make and early-break
contacts. It maintains suitability for isolation and offers optional locking using a
keylock or a padlock.
Emergency off A-87 In a circuit equipped with a circuit breaker, this function is carried out by an opening
mechanism using an MN undervoltage release or an MX shunt release in
conjunction with an emergency off button.
Extended rotary handle A-88 Rotary handle with an extended shaft to control devices installed at the rear of
switchboards. It has the same characteristics as direct rotary handles. It offers
multiple locking possibilities using a keylock, a padlock or a door interlock.
Failsafe remote tripping A-87 Remote tripping is carried out by an opening mechanism using an MN undervoltage
release in conjunction with an emergency off button. If power is lost, the protection
device opens the circuit breaker.
G-5
Manual toggle control A-93 This is the standard control mechanism for the circuit breaker, with a toggle that can
be flipped up or down. In a moulded-case circuit breaker (MCCB), there are three
positions, I (ON), O (OFF) and TRIPPED. Once in the TRIPPED position, manual
reset is required by switching to O (OFF position before reclosing.The TRIPPED
position does not offer isolation with positive contact indication. This is guaranteed
only by the O (OFF) position.
MCC rotary handle A-88 Handle used for motor control centres and providing IP43 and IK07.
Motor mechanism module A-86 The optional motor mechanism module is used to remotely open, close and recharge
the circuit breaker.
Current discrimination Discrimination based on the difference between the current-protection settings of the
circuit breakers. The difference in settings between two successive circuit breakers
in a circuit must be sufficient to allow the downstream breaker to clear the fault
before the upstream breaker trips.
Discrimination A-10 Discrimination is ensured between upstream and downstream circuit breakers if,
when a fault occurs, only the circuit breaker placed immediately upstream of the fault
trips.
Discrimination is the key to ensuring the continuity of service of an installation.
Energy discrimination A-10 This function is specific to Compact NSX (see Reflex tripping on page G-7) and
supplements the other types of discrimination.
Partial discrimination A-10 Discrimination is partial if the conditions for total discrimination are not met up to the
ultimate short-circuit current Icu, but only up to a lesser value. This value is called the
discrimination limit. If a fault exceeds the discrimination limit, both circuit breakers
trip.
Time discrimination Discrimination based on the difference between the time-delay settings of the circuit
breakers. The upstream trip unit is delayed to provide the downstream breaker the
time required to clear the fault.
Total discrimination A-10 Total discrimination is ensured between upstream and downstream circuit breakers
if, for all fault values, from overloads up to solid short-circuits, only the downstream
circuit breaker trips and the upstream circuit breaker remains closed.
Zone selective interlocking (ZSI) A-20 A number of circuit breakers with Micrologic electronic trip units are interconnected
one after another by a pilot wire. In the event of a short-time or ground fault:
b in the absence of information from downstream, the circuit breaker directly
concerned by the fault (i.e. located just upstream of the fault) shifts to the shortest
time delay and sends a signal upstream
b the upstream device, on receiving the signal from the downstream device,
maintains its normal time delay.
In this manner, the fault is cleared rapidly by the circuit breaker closest to the fault.
Environment..................................................................................................
EMC (Electromagnetic compatibility) A-3 EMC is the capacity of a device not to disturb its environment during operation
(emitted electromagnetic disturbances) and to operate in a disturbed environment
(electromagnetic disturbances affecting the device). The standards define various
classes for the types of disturbances. Micrologic trip units comply with annexes F
and J in standard IEC IE60947-2.
Power loss B-10 The flow of current through the circuit-breaker poles produces Joule-effect losses
Pole resistance caused by the resistance of the poles.
G-6
Product environmental profile (PEP) A-2 Environmental indicators are also frequently used for the PEP (sheet available on
Environmental indicators request for Compact NSX):
b Depletion of natural resources
b Depletion of energy
b Depletion of water
b Potential for atmospheric warming (greenhouse effect)
b Potential for stratospheric ozone depletion
b Creation of atmospheric ozone (ozone layer)
b Acidification of air (acid rain)
b Production of hazardous waste.
RoHS directive A-2 European directive 2002/95/EC dated 27 January 2003 aimed at reducing or
(Restriction of Hazardous substances) eliminating the use of hazardous substances. The manufacturer must attest to
compliance, without third-party certification. Circuit breakers are not included in the
list of concerned products, which are essentially consumer products.
That not withstanding, Schneider Electric decided to comply with the RoHS directive.
Compact NSX products are designed in compliance with RoHS and do not contain
(above the authorised levels) lead, mercury, cadmium, hexavalent chromium or
flame retardants (polybrominated biphenyls PBB and polybrominated diphenyl ether
PBDE).
Safety clearances A-2 When installing a circuit breaker, minimum distances (safety clearances) must be
maintained between the device and panels, bars and other protection systems
installed nearby. These distances, which depend on the ultimate breaking capacity,
are defined by tests carried out in accordance with standard IEC 60947-2.
Temperature derating B-8 An ambient temperature varying significantly from 40°C can modify operation of
magnetic or thermal-magnetic protection functions. It does not affect electronic trip
units. However, when electronic trip units are used in high-temperature situations, it
is necessary to check the settings to ensure that only the permissible current for the
given ambient temperature is let through.
Vibration withstand B-2 Circuit breakers are tested in compliance with standard IEC 60068-2-6 for the levels
IEC 60068-2-6 required by merchant-marine inspection organisations (Veritas, Lloyd's, etc.):
b 2 to 13.2 Hz: amplitude of ±1 mm
b 13.2 to 100 Hz: constant acceleration of 0.7 g.
WEEE directive A-2 European directive on managing the waste of electrical and electronic equipment.
(Waste of Electrical and Electronic Circuit breakers are not included in the list of concerned products.
However, Compact NSX products respect the WEEE directive.
Equipment)
Harmonics.....................................................................................................
G-7
Current harmonics A-22 Non-linear loads cause harmonic currents that flow in the 50 Hz (or 60 Hz)
distribution system. Total harmonic current is the sum of sinusoidal AC currents for
which the rms values can be measured and broken down into:
b the fundamental current at the 50/60 Hz frequency of the distribution system, with
an rms value of IH1
b harmonic currents with whole, odd multiples (3, 5, 7, etc.) of the 50/60 Hz
frequency, called the third-order, fifth-order, etc. harmonics. For example, IH3, the
third-order harmonic at 150/180 Hz, IH5, the fifth-order harmonic at 250/300 Hz, etc.
The presence of harmonics in the system must be monitored and limited because it
results in temperature rise, currents in the neutral (caused by the third-order
harmonics and multiples), malfunctions of sensitive electronic devices, etc.
Micrologic E trip units take into account harmonics up to order 15 in the THDI and
THDU calculations.
Non-linear load Systems producing harmonics are present in all industrial, commercial and
residential sectors. Harmonics are caused by non-linear loads. A load is said to be
non-linear when the current drawn does not have the same waveform as the supply
voltage. Typically, loads using power electronics are non-linear.
Examples of non-linear loads include computers, rectifiers, variable-speed drives,
arc furnaces and fluorescent lighting.
Total harmonic distortion of current A-23 THDI characterises the distortion of the current wave by harmonics.
(THDI) It indicates the quantity of harmonics in the resulting waveform. It is expressed in
percent.
The higher the THDI, the more the current is distorted by harmonics.
THDI should remain below 10%. Above that level, there is said to be harmonic
pollution that is considered severe when it rises above 50%.
Total harmonic distortion of voltage A-23 THDU characterises the distortion of the voltage wave by harmonics.
(THDU) It indicates the quantity of harmonics in the resulting waveform. It is expressed in
percent.
The higher the THDU, the more the system voltage is distorted by harmonics. It is
advised not to exceed 5% for low-voltage systems.
Voltage harmonics A-22 For each current harmonic IHk, there is a voltage harmonic UHk of the same order k,
where the resulting voltage is the sum of the two waves.
The voltage wave is therefore distorted with respect to the standard sinusoidal wave.
Measurements ..............................................................................................
Contact wear A-25 Each time Compact NSX opens, the Micrologic 5 / 6 trip unit measures the
interrupted current and increments the contact-wear indicator as a function of the
interrupted current, according to test results stored in memory.
Current transformer with 10 It is made up of a coil wound around an iron frame through which a power busbar
iron-core toroid runs. The current flowing in the bar, on passing through the sensor, induces a
magnetic field that reverses for each half period. This variation in the field in turn
creates an induced current in the coil. This current is proportional to the current
flowing in the bar. It is sufficient to supply the measurement electronics.
The disadvantage of iron-core measurement current transformers (CT) is that they
rapidly saturate for currents > 10 In.
Current transformer with Rogowski 10 It is made up of a coil without an iron frame, through which a power busbar runs. The
toroid or air-core CT output voltage at the coil terminals is proportional to the current flowing through the
bar. The result is a current transformer (CT) with a voltage output. The advantage is
that it never saturates whatever the primary current and thus enables measurement
of high currents. The output is however a very low current that is too low to supply the
measurement electronics.
For Micrologic, Rogowski CTs measure the current and a second CT, with an iron
core, provides the electrical supply.
Demand current, demand A-23 Average of the instantaneous current or power values over an adjustable fixed or
power and peak values sliding time interval. The highest value observed over the time interval is the peak
value. The time interval runs from the last reset.
Instantaneous current A-23 True rms value of the current measured by the current transformers over a sliding
time interval. Available on Micrologic 5/6 A or E.
G-8
Maximeters/minimeters A-22 Micrologic 5 and 6 A or E can record the minimum and maximum values of electrical
parameters over set time periods.
Overvoltage category A-34 Standard IEC 60664-1 stipulates that it is up to the user to select a measurement
(OVC - Overvoltage category) device with a sufficient overvoltage category, depending on the network voltage and
the transient overvoltages likely to occur.
IEC 60947-1. Annex H Four overvoltage categories define the field of use for a device.
b Cat. I. Devices supplied by a SELV isolating transformer or a battery.
b Cat. II. Residential distribution, handheld or laboratory tools and devices
connected to standardised 2P + earth electrical outlets (230 V).
b Cat. III. Industrial distribution, fixed distribution circuits in buildings (main low
voltage switchboards, rising mains, elevators, etc.).
b Cat. IV. Utility substations, overhead lines, certain industrial equipment.
Percent load A-25 Percentage of current flowing through the circuit breaker with respect to its rated
current. Micrologic 6 E-M offers this information and can sum it over the total
operating time to provide the load profile for the following ranges, 0 to 49%, 50 to
79%, 80 to 89% and u 90%.
Phase sequence A-25 The order in which the phases are connected (L1, L2, L3 or L1, L3, L2) determines
the direction of rotation for three-phase asynchronous motors. Micrologic 6 E-M trip
units provide this information.
Power and energy metering A-23 The digital electronics in Micrologic 5/6 E calculate the instantaneous power levels,
(consumption) apparent (S in kVA), active (P in kW) and (Q in kV), and integrate over a time interval
to determine the corresponding energies (kVAh, kWh kvarh). Calculations are for
each phase and for the total.
Time-stamped histories A-25 Micrologic trip units store information on events (e.g. alarms and their cause) that are
time-stamped to within a millisecond.
Protection .......................................................................................................
Ground-fault protection G (Ig) A-21 Protection function specific to electronic circuit breakers, symbolised by G (Ground).
This protection can calculate high-threshold residual earth-leakage currents (in the
order of tens of Amperes) on the basis of phase-current measurements. Micrologic
5/6 offers this protection function with adjustable pick-up Ig and time delay.
Instantaneous protection I (Ii) A-21 This protection supplements Isd. It provokes instantaneous opening of the device.
The pick-up may be adjustable or fixed (built-in). This value is always lower than the
contact-repulsion level.
Long-time protection L (Ir) A-21 Protection function where the adjustable Ir pick-up determines a protection curve
similar to the thermal-protection curve (inverse-time curve I2t). The curve is generally
determined on the basis of the Ir setting which corresponds to a theoretically infinite
tripping time (asymptote) and of the point at 6 Ir at which the tripping time depends
on the rating.
Magnetic protection (Im) A-16 Short-circuit protection provided by magnetic trip units (see this term). The pick-up
setting may be fixed or adjustable.
Neutral protection (IN) A-18 The neutral is protected because all circuit-breaker poles are interrupted. The setting
may be that used for the phases or specific to the neutral, i.e. reduced neutral (0.5
times the phase current) or OSN (oversized neutral) at 1.6 times the phase current.
For OSN protection, the maximum device setting is limited to 0.63 In.
Residual-current earth-leakage A-36 Protection provided by Vigi modules, in which the residual-current toroids directly
protection (IΔn) detect low-threshold earth-leakage currents (in the order of tens of mA) caused by
insulation faults.
Short-delay protection S (Isd) A-21 Protection function specific to electronic circuit breakers, symbolised by S (Short
delay or short time). This protection supplements thermal protection. The reaction
time is very short, but has a slight time delay to enable discrimination with the
upstream device. The short-delay pick-up Isd is adjustable from approximately 1.5 to
10 Ir.
Short-delay protection with fixed A-19 Short-delay protection, but with a fixed time delay. This function is available on
time delay So (Isd) Micrologic 2. It is symbolised by So. It ensures discrimination with downstream
devices.
G-9
Thermal protection (Ir) A-17 Overload protection provided by thermal trip units (see this term) using an inverse-
time curve (I2t).
Break contact A-88 "Control or auxiliary contact which is open when the main contacts of the mechanical
IEC 60947-1 switching device are closed and closed when they are open".
Make contact A-88 "Control or auxiliary contact which is closed when the main contacts of the
IEC 60947-1 mechanical switching device are closed and open when they are open".
Relay (electrical) A-20 "Device designed to produce sudden, predetermined changes in one or more
IEC 60947-1 electrical output circuits when certain conditions are fulfilled in the electrical input
circuits controlling the device".
Relay module with static output A-85 Output of a relay made up of a thyristor or triac electronic component. The low
interrupting capacity means that a power relay is required. This is the case for the
SDx and SDTAM outputs.
Switchgear .....................................................................................................
Circuit breaker A-6 "Mechanical switching device, capable of making, carrying and breaking currents
IEC 60947-2 under normal circuit conditions and also making, carrying for a specified time and
breaking currents under specified abnormal circuit conditions such as those of short
circuit". Circuit breakers are the device of choice for protection against overloads
and short-circuits. Circuit breakers may, as is the case for Compact NSX, be suitable
for isolation.
Circuit-breaker utilisation category A-6 The standard defines two utilisation categories, A and B, depending on breaker
IEC 60947-2 discrimination with upstream breakers under short-circuit conditions.
b Category A. Circuit breakers not specifically designed for discrimination
applications.
b Category B. Circuit breakers specifically designed for discrimination, which
requires a short time-delay (which may be adjustable) and a rated short-time
withstand current in compliance with the standard.
Compact NSX100 to 630 circuit breakers are category A, however, by design, they
provide discrimination with downstream devices (see the Complementary technical
information guide).
Contactor A-38 "Mechanical switching device having only one position of rest, operated otherwise
IEC 60947-1 than by hand, capable of making, carrying and breaking currents under normal
circuit conditions including operating overload conditions". A contactor is provided for
frequent opening and closing of circuits under load or slight overload conditions. It
must be combined and coordinated with a protective device against overloads and
short-circuits, such as a circuit breaker.
Contactor utilisation categories A-39 The standard defines four utilisation categories, AC1, AC2, AC3 and AC4 depending
IEC 60947-4-1 on the load and the control functions provided by the contactor. The class depends
on the current, voltage and power factor, as well as contactor withstand capacity in
terms of frequency of operation and endurance.
Current-limiting circuit breaker A-38 "A circuit-breaker with a break-time short enough to prevent the short-circuit current
IEC 60947-2 reaching its otherwise attainable peak value".
Disconnector "Mechanical switching device which, in the open position, complies with the
IEC 60947-3 requirements specified for the isolating function". A disconnector serves to isolate
upstream and downstream circuits. It is used to open or close circuits under no-load
conditions or with a negligible current level. It can carry the rated circuit current and,
for a specified time, the short-circuit current.
Switch-disconnector A-60 "Switch which, in the open position, satisfies the isolating requirements specified for
IEC 60947-3 a disconnector". A switch-disconnector serves for switching and isolation. The switch
function breaks the circuit under load conditions and the disconnection function
isolates the circuit. Protection is not provided. It may be capable of making short-
circuit currents if it has the necessary making capacity, but it cannot break short-
circuit currents. Compact NSX100 to 630 NA switch-disconnectors have a making
capacity.
G-10
Long-start protection (Ilong) A-46 An overly long start means the current drawn remains too high or too low for too long,
with respect to the starting current. In all cases, the load cannot be driven and the
start must be interrupted. The resulting temperature rise must be taken into account
before restarting.
Phase-unbalance or phase- loss A-45 This protection function steps in if the current values and/or the unbalance in the
protection (Iunbal) three phases supplying the motor exceeds tolerances. Currents should be equal and
displacement should be one third of a period. Phase loss is a special case of phase
unbalance.
Starting time A-40 Time after which the motor ceases to draw the starting current and falls back to the
operating current Ir (y In).
Thermal image of the rotor and A-46 The thermal image models the thermal behaviour of a motor rotor and stator, taking
stator into account temperature rise caused by overloads or successive starts, and the
cooling constants. For each motor power rating, the algorithm takes into account a
theoretical amount of iron and copper which modifies the cooling constants.
Thermal protection Protection against overcurrents following an inverse time curve I2t = constant, which
defines the maximum permissible temperature rise for the motor.
Tripping occurs after a time delay that decreases with increasing current.
Trip class A-40 The trip class determines the trip curve of the thermal protection device for a motor
IEC 60947-4-1 feeder. The standard defines trip classes 5, 10, 20 and 30. These classes are the
maximum durations, in seconds, for motor starting with a starting current of 7.2 Ir,
where Ir is the thermal setting indicated on the motor rating plate.
Under-load protection (Iund) A-46 This function steps in when the driven load is too low. It detects a set minimum phase
current which signals incorrect operation of the driven machine. In the example of a
pump, under-load protection detects when the pump is no longer primed.
Magnetic release A-16 Release actuated by a coil or a lever. A major increase in the current (e.g. a
short-circuit) produces in the coil or the lever a change in the magnetic field that
moves a core. This trips the circuit breaker operating mechanism. Action is
instantaneous. The pick-up setting may be adjustable.
Reflex tripping A-6 Compact NSX circuit breakers have a patented reflex-tripping system based on the
energy of the arc and that is independent of the other protection functions. It
operates extremely fast, before the other protection functions. It is an additional
safety function that operates before the others in the event of a very high short-
circuit.
G-11
Shunt release (MX) A-83 This type of release operates when supplied with current. The MX release provokes
circuit-breaker opening when it receives a pulse-type or maintained command.
Thermal-magnetic trip unit A-16 Trip unit combining thermal protection for overloads and magnetic protection.
Thermal release A-16 Release in which a bimetal strip is heated by the Joule effect. Above a temperature-
rise threshold that is a function of the current and its duration (I2t curve = constant,
which is representative of temperature rise in cables), the bimetal strip bends and
releases the circuit-breaker opening mechanism. The pick-up setting may be
adjustable.
Undervoltage release (MN) A-87 This type of release operates when the supply voltage drops below the set minimum.
G-12
LVPED208001EN 05-2013