Plastic universal sensor for the I-connection in System 55


The LCN-KUS55 is a presence detector, infrared, light, humidity and temperature sensor for indoor use for the I-connection of an LCN bus module from firmware 1E05… (May 2020).
The LCN-KUS55 is suitable for the LCN-G55 frames or commercially available System 55mm frames.

In conjunction with the integrated processor, the digital temperature sensor provides highly precise, virtually noise-free measured values and transmits them to the connected LCN module via the I-connector. By integrating the LCN-RR IR receiver, the LCN-KUS55 can process the signals from the LCN remote controls. The light sensor is used to detect the brightness in rooms. The measured value can be used for constant light control to achieve optimum lighting conditions while saving energy. The integrated light sensor covers a very wide measuring range from 1 to 100,000 lux.

The presence/motion detector detects the movement of persons and objects by their thermal radiation. It offers an adjustable range. It can thus be used universally for switching lighting and for alarm functions in building monitoring. The LCN-KUS55S supplies its four measured values to the variables of the connected LCN module. There they can act on the controllers and switching thresholds, as well as be transferred to the variables of other modules.

Fields of application:

  • As a sensor for integrated climate and room air control depending on temperature and room humidity.
  • As a brightness sensor for constant light controls.
  • As a motion and presence sensor for the control of lighting depending on presence.
  • As an IR receiver for controlling the LCN system with a handheld IR transmitter.


LCN-KUS55 (55 mm x 55 mm)

white: LCN-KUS55W
black: LCN-KUS55B


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