Fusible overtemperature protection and tripping devices

Fail-safe overtemperature protection of heater coils and tubular elements

Fusible overtemperature protection and tripping devices
Fail-safe overtemperature protection of heater coils and tubular elements

Schaltbau fusible overtemperature protection and tripping devices ensure fail-safe thermal cutout protection against overheating of electric air heaters as used in rail vehicles and stationary heating systems. The devices are a prerequisite for fire protection and operate totally independent of the heater controls.

  • Fail-safe overtemperature protection of heater coils and tubular elements
  • Tripping function independent of control voltage
  • Replacement fusible link necessary after tripping operation
  • Optional auxiliary contact for version ZH437
  • Applicable standards: IEC 60077, IEC 50124-1