Phoenix Contact

Thermomagnetic device circuit breakers

Thermomagnetic circuit breakers feature a thermal tripping mechanism as well as a magnetic tripping mechanism. This means that the protective devices trip faster in the event of a short circuit compared to thermal fuses. With their various characteristic curves, the device circuit breakers also satisfy the requirements for long cable paths. They therefore provide ideal protection against overload and short-circuit currents.

Advantages:

  • Maximum overcurrent protection over long cable paths, thanks to SFB tripping characteristic
  • Integration in remote signaling concepts, thanks to integrated changeover contact
  • Reduced installation costs, due to bridgeable device circuit breakers (in the base element)
  • Protection of 230/240 V AC control voltages, thanks to the M1 characteristic curve
  • Thermomagnetic device circuit breakers are a part of the COMPLETE line system