Frost Protection (FSS)

Frost protection thermostat for air temperature monitoring:

Application field:
The frost protection thermostat FSS for air-side monitoring of the temperature of LTHW heating coils and air conditioning systems is used to prevent frost damage. It has a small switching differential and good repeatability. Reset can be done automatically or manually by pressing a button in case of the FSS-Reset.


  • Robust injection molded plastic housing
  • Responds to temperature change sensed over any 60 cm (contact length)
  • Small switching differential intervals
  • Good repeatability
  • Setpoint adjustment range (-10...+15°C)
  • Protection standard IP 65

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