HD 652 Ca

www.intertec.
info
CP VARITHERM CPA … Electric heater
1 Application
Heating of instrument enclosures in hazardous areas,
designed for
• freeze protection
• condensation protection
• preferably horizontal installation.
2 Special Features & Advantages

• Horizontal design allows for optimum installation of the
heater underneath the instruments in the enclosure
• Vertical installation is also possible with reduced output
of 25%
• Freeze-protection thermostat (option TSxx) with junction
box can be provided 4 Explosion Proof
• High heat transfer capabilities due to large surface area
of black anodized aluminium fins CSA Certificate File # 1655545 (LR43674)
• Heater fins can be removed and modified by INTERTEC, CSA Type of Protection Cl. 1, Div. 1, Gp ABCD T3/ T4
if necessary for installation purposes
3 Description 5 Technical Data

The very versatile VARITHERM line consists of electric Ingress Protection IP68
heaters designed to heat the air in the enclosure by
convection. The data sheet shows the heaters that are Nominal voltage 120V AC
available from normal stock. Many more variations and Connection cable 3 x 1,5mm² 8,1mm Ø
options are possible. Conduit connection ½“ NPT
A temperature fuse is integrated in the core block, cutting off Length of cable 39” / 1 m
the power in case of a failure or excessive heating resulting
from an external heat source. It should be noted that this Length, width 8.7”/ 220 mm, 8.4”/ 213 mm
temperature limiter must only be repaired in our factory. For Material seawater-proof aluminium, black
reasons of operational safety the heater must only be anodized
operated under conditions that ensure that the trip
temperature of the limiter will not be exceeded: 6 Types (Other types upon request)
• Controllers such as TSxx or TC switch off the heater in CP 200 200 250 300 400 500 600
case of high temperatures inside the enclosure. VARITHERM T3 T3 T3 T3 T3 T3 T3
• Ensure effective convection by observing the necessary CPA 60 100 120 80 100 100 120
clearances as per section 7 on the next page. Take care Nominal
power [W] 200 200 250 300 400 500 600
not to cover the fins.
For any specific applications requiring high temperature Temperature
T3 T3 T3 T3 T3 T3 T3
maintenance we will be pleased to select the suitable class
combination of heater and controller. Fin Height 2.4”/ 3.9”/ 4.7”/ 3.1”/ 3.9”/ 3.9”/ 4.7”/
[in/mm] 60 100 120 80 100 100 120
A temperature indicator shows potential problems and 7 Options
failures at an early stage (e.g. incorrect installation). Please
check the application if more than 3 fields have irreversibly TSxx JC Thermostat kit with 3 port junction box
changed to black. 3M Connection cable 10’ / 3 m long
T4 Temperature Class T4 available on request
Ordering example:
CP VARITHERM CPA 300 T3 80 120V or
Warranty null and void if Heater strip has been removed from
Heater. CP VARITHERM CPA 400 T3 100 TS10 JC 230 MB 120V
HD652-3c- CP VARITHERM CPA… page 1/ 2

I N T E RT E C I n s t r u m e n t a t i o n - S a r n i a , O n t a r i o - H o u s t o n , Te x a s - P h o n e : 1 - 8 8 8 - 8 7 5 - 8 7 5 6
www.intertec.info
CP VARITHERM CPA … Electric heater
8 Installation 10 Installation of the VARITHERM heater

8.1 horizontal (recommended) When installing the heater, please make sure that the label
remains clearly legible.
Trouble-free installation, e.g. on a mounting plate or the
INTERTEC mounting system (C-rails) in the instrument
min. 2”/ enclosures or protective cabinets, is possible.
50 mm TS
With two mounting brackets in plated steel
min. 1”/
30 mm
8.2 vertical
The brackets and mounting bolts illustrated above are

TS included with the heater.
With one stainless steel mounting bracket (MB)

min.
2”/50 mm
min.1”/
30 mm
Note: The convection is about 20% less at vertical
installation. Due to earlier switching of the thermostat the With two stainless steel mounting brackets (MW)
effective heating power may be lower.
9 Electric Wiring
L1
N
PE
Ex
Junction
Box
bu bu bn bu ye/gn
TS J> PA
J> The MB or MW mounting brackets can be ordered
as options.
VARITHERM
bu=blue bn=brown ye/gn=yellow/green bk=black gy=grey
HD652-3c- CP VARITHERM CPA… page 2/ 2

I N T E RT E C I n s t r u m e n t a t i o n - S a r n i a , O n t a r i o - H o u s t o n , Te x a s - P h o n e : 1 - 8 8 8 - 8 7 5 - 8 7 5 6

HD 652 Ca

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HD 652 Ca

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www.intertec.

CP VARITHERM CPA … Electric heater

2 Special Features & Advantages

3 Description 5 Technical Data

HD652-3c- CP VARITHERM CPA… page 1/ 2

CP VARITHERM CPA … Electric heater

8 Installation 10 Installation of the VARITHERM heater

The brackets and mounting bolts illustrated above are

With one stainless steel mounting bracket (MB)

bu=blue bn=brown ye/gn=yellow/green bk=black gy=grey

HD652-3c- CP VARITHERM CPA… page 2/ 2

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