Safety pressure switches for heating system (against low pressurization)


  • Safety pressure switches for heating systems applications
  • The devices automatically stop the heat generator when a pre-set water pressure limit is drop off
  • Reset is exclusively manual by pressing the manual reset key after the pressure has returned by at least 0.4 bar within the shutoff value
  • External graduated scale on the instrument
  • Double normally open contact (LPR/5) in brass alloy with Ag-Ni coating
  • Terminals with M4 screws and 8×8 mm pressure dice
  • NBR rubber membrane with textile insert
  • ¼” F hydraulic connection made of galvanised steel
  • Standard protection degree IP 44
  • Tear resistant cable clamps
  • Maximum fl uid temperature: 110°C
  • Max ambient temperature 55°C

APPLICATIONS: Pressure switches for heating systems, Pressure switches for firefighting systems

Electric contact N.O.
Pressure range 0.5 – 1.7 – bar
Factory settings 0.9 bar
Rated current 16 (10A)
Rated voltage 250 V
Max. fluid temperature 110 °C



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