SIS (Class II version of SIM)

SIS (Class II version of SIM)

SIS is a class II device. The I class is also available, see SIM device.

The SIS is a fixed temperature heating device with a self-regulating PTC heating element. 

Intelligent Home System
The device is suitable for connection to external timers or intelligent home systems. 

High ingress protection IP67. The self-regulating PTC element protects the device and the radiator in case of accidental dry running. 

Stainless steel housing. 

Features and functions

  • Maintenance-free
  • Limiting the maximum temperature in case of operation in a dry radiator
  • A self-regulating PTC heating rod
  • Symmetrical housing (can be installed on the left or right side)
  • stainless steel housing
  • Colour of heating element housing – Stainless steel and a white cable
  • Available power outputs: 100W, 200W, 300W, 400W, 600W, 800W, 1000W, 1200W and 1500W
  • Suitable for connection to external timers and intelligent building systems
  • x7 IP rating
  • Appliance protection class - Class II

Technical Specifications

Available output power:
100, 200, 300, 400, 600, 800, 1000, 1200, 1500W
Protection devices:
Klasa II
Radiator connection:
Ingress protection [IP]:
* Add the appropriate cabel type symbols here

Available colours: white, silver, chrome and black. The heating element can also be offered in any RAL colour and Terma special colours (including brass and gold) subject to a minimum order of 100 pcs per colour.

The reproduction of colours on electronic devices may vary slightly from those seen on the actual products. For a more exact colour selection it is always best to ask for a matching colour chip sample. These are available from our Sales

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