Safety pressure switches for heating system (against overheat)

PMR

  • Safety pressure switches for heating systems applications
  • The devices automatically stop the heat generator when a pre-set water pressure limit is exceeded
  • 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 closed electric contact (PMR/5EU) 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

PMR/5 PMR/10
Electric contact N.C. N.C.
Nyomás hiszterézis 1 – 5 bar 1 – 9 bar
Gyári beállítás 3 bar 5 bar
Névleges áramerősség 16 (10A) 16 (10A)
Névleges feszültség 250 V 250 V
Mért folyadék maximum hőmérséklet 110 °C 80 °C

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