Heating element TERMA SPLIT (I CLASS)

Easy to assemble
The unique feature of the KTX range of heating elements is the Terma‑Split System. The Terma‑Split connector makes it possible to disconnect the TS 1 from the controller head. The TS 1 screws into the radiator and is tightened with a standard 24 mm spanner, then the controller can be fitted onto the Terma‑Split connector. The connector is then hidden within the controller case.

A unique characteristic of heating elements by Terma. This innovative solution separates the heating element from the controller. the heating element itself should be "traditionally" screwed into the radiator with the spanner. The controller should then be installed on the head of the heating element. The only visible element remaining is the electric controller, as the connector is hidden within the casing.


  •  Easy and safe installation
  • Capability to change the controller for a different model at any time, without any interference in the installation
  • Capability to remove the controller e.g.: for the renovation period
  • Capability to place the controller at any suitable angle towards the radiator (340° of rotation)
  • Capability to use a heating element of any power within the 120 - 1000 W range (independently from the controller)

Device also available in class II.

Features and functions

  • Ideal for DIY installation
  • The Terma‑Split connector makes it possible to disconnect the heating element from the controller head, e.g. during renovation.
  • Ability to change the controller head without shutting off the installation
  • Option of connecting a heating element of any power within the 120-1000 W range (regardless of the controller model)
  • Designed class I devices (for class II devices see TS2)
  • The controller can be tilted at a suitable angle (340° rotation angle)
  • Easy and safe installation

Technical Specifications

Power :
Available output power :
120, 200, 300, 400, 600, 800, 1000W
Protection devices :
Klasa I
Radiator connection :
Model headerColor
WattageL [mm]Product CodeConfigure Code
Terma Split Class 1-120325WETS101K---D
Terma Split Class 1-200285WETS102K---D
Terma Split Class 1-300310WETS103K---D
Terma Split Class 1-400345WETS104K---D
Terma Split Class 1-600375WETS106K---D
Terma Split Class 1-800485WETS108K---D
Terma Split Class 1-1000575WETS110K---D

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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