KT 40-20-4 Document type: Product card

Document date: 2018-11-14

Item no. 1482 Generated by: Systemair Online Catalogue

Version: 50 Hz

Description

Swing-out
Speed-controllable
Integral thermal contacts
Can be installed in any position
Maintenance-free and reliable

The KT models have impellers with forward-curved blades and external rotor motors.
The motor and impeller are mounted on the access cover to facilitate easy
maintenance. The casing is manufactured from galvanised sheet steel. To protect the
motor from overheating the fans have integral thermal contacts with external leads
for connection to a motor protection device. The fans can be installed in any position
and are easy to connect using the DS flexible connections. The KT fans have a pre-
wired, integral terminal box.

Technical parameters

Nominal data

Voltage 400 V

Frequency 50 Hz

Phase 3 ~

Input power (P1) 289 W

Current 0,519 A

Max. airflow 1325 m³/h

Fan impeller speed 1303 r.p.m.

Min. static back pressure 0 Pa

Weight 12,5 kg

Temperature data

Max. temperature of transported air 63,4 °C

Max. temperature of transported air when voltage-controlled 63,4 °C

Sound data

Sound pressure level at 3 m (20m² Sabin) 52 dB(A)

Protection / Classification

Insulation class B

Enclosure class, motor IP44

Name: KT 40-20-4 | Item no.: 1482 | Version: 50 Hz 1/5

Document type: Product card | Document date: 2018-11-14 | Generated by: Online catalogue
 ErP

ErP ready ErP 2018

Performance

Diagrams
300

250

200
Pstat [Pa]

150

100

50

0
0 300 600 900 1200 1500
Q [m³/h]
300

200
P [W]

100

0
0 300 600 900 1200 1500
Q [m³/h]

Max efficiency

Hydraulic data

Working air flow 596 m³/h

Working static pressure 230 Pa

Power 126 W

Speed 1434 r.p.m.

Current 0,365 A

SFP 0,763 kW/(m³/s)

Voltage 400 V

Sound power level 63 125 250 500 1k 2k 4k 8k Tot

Inlet dB(A) 57 68 64 61 57 56 54 48 71

Outlet dB(A) 54 64 68 65 66 63 60 54 73

Surrounding dB(A) 35 47 58 52 50 45 41 36 60

Name: KT 40-20-4 | Item no.: 1482 | Version: 50 Hz 2/5

Document type: Product card | Document date: 2018-11-14 | Generated by: Online catalogue
 User

Hydraulic data

Required air flow 1206 m³/h

Required static pressure 50 Pa

Working air flow 1219 m³/h

Working static pressure 51,1 Pa

Power 260 W

Speed 1329 r.p.m.

Current 0,486 A

SFP 0,766 kW/(m³/s)

Voltage 400 V

Sound power level 63 125 250 500 1k 2k 4k 8k Tot

Inlet dB(A) 63 72 67 67 63 63 62 58 75
Outlet dB(A) 58 68 71 71 72 70 68 64 78
Surrounding dB(A) 39 52 61 58 56 52 49 45 65

Dimensions

Name: KT 40-20-4 | Item no.: 1482 | Version: 50 Hz 3/5

Document type: Product card | Document date: 2018-11-14 | Generated by: Online catalogue
 A B C D E F G H I*

KT 40-20 398 198 220 420 440 240 502 32 530

KT 50-25 498 248 270 520 540 290 532 68 610
KT 50-30 498 298 320 520 540 340 562 68 695
KT 60-30 598 298 320 620 640 340 642 89 715
KT 60-35 598 348 370 620 640 390 717 92 805
KT 70-40-4 698 398 420 720 740 440 787 92 900
KT 70-40-6/8 698 398 420 720 740 440 787 92 900
KT 80-50 798 497 520 820 840 540 880 113 1090
KT 100-50 998 497 520 1020 1040 540 980 113 1140

I* = Dimension with fully open hatch.

Wiring

Name: KT 40-20-4 | Item no.: 1482 | Version: 50 Hz 4/5

Document type: Product card | Document date: 2018-11-14 | Generated by: Online catalogue
 Accessories
Electric accessories
RTRD 2 Speed Cont. Systemair (5941)
RTRDU 2 Speed contr. Systemair (5945)
HR1 Room Humidistat IP21 (5150)
RT 0-30 Room Thermostat (5151)
STDT 16 Motor Protection (5152)
STDT 16E Motor Protection (5153)
T 120 Timer (5165)
CO2RT-R-D Transmitter (6993)
Presence detector/IR24-P (6995)
DTV500-OEM incl connection kit (5044)
REV-5POL/07 ON/OFF (33980)
Safety switch 3-pole grey (210680)

Accessories
RBM 40-20/9 400V/3 Duct heater (5450)
PGK 40-20-3-2,0 Duct cooler (6604)
VBR 40-20-2 Water heating batt (5463)
VBR 40-20-4 Water heating batt (5471)
LDR 40-20 Silencer (5069)
FFK 40-20 Filter cassette rect (1750)
DS 40-20 Flexible connection (1539)
GFL 40-20 Counter flange (2705)
VK-40-20 Louvre shutter (5644)
SRK 40-20 Class 3 Damper (7020)
DXRE 40-20-3-2,5 Duct cooler (7951)
RB 40-20/15-1 400V/3 Duct heat (9628)
RB 40-20/9-1 400V/3 Duct heat. (9627)

Documentation

202341_Fans_Instructions_CE_(A015).pdf (1,80MB)

Name: KT 40-20-4 | Item no.: 1482 | Version: 50 Hz 5/5

Document type: Product card | Document date: 2018-11-14 | Generated by: Online catalogue