5 a


Product Description


  • Design width 54 mm
  • Installation on top hat rail 35mm
  • Input, RTD temperature probe, PT100
  • Input, double thermocouple “K”, “S”, “B”, “L”
  • Temperature monitoring up to max. 1800°C
  • For rising and dropping temperatures
  • Connection for external unlocking key (TB, STB)
  • Approval as per DIN EN 14 597, SIL, GL
  • In connection with the temperature probes as per data sheet 90.1006 and 90.2006, the devices are certified as per DIN, SIL 2 or SIL 3


  • Protection of burner control systems
  • Monitoring of heating elements
  • Protection of thermal oil systems
  • Protection of boiler plants