Controllers for cooling applications 900315.002

Technical data

  • Housing dimension ST181 Front: 180x52mm
  • Power supply 230V AC
  • Switching inputs none
  • Number of outputs 3
  • Sensor type PTC
  • ST-Bus available Yes
  • Software 112

Wiring diagram

Dimensional drawing

Product description

The cooling controller ST181-LK4KAR.112 is equipped with three relays and an output with variable revolution numbers specifically for the ventilation process. The revolution number is determined by proven parameters in finely gradated values that are reproducible at any time. Varying revolution numbers during cooling and defrosting are part of the concept. When operated at low ventilation numbers, in the beginning, the ventilator is run at full rotation power for a short time as a kick-start support.
The three power outputs with our proven 16A relay allow complete operation of the cooling circle as well as further additional features, as for example the lighting and many other functions.
Networking of the controller takes place via the ST-Bus interface.

Data sheet             Installation instructions

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