Differential pressure switch 930 EX adjustable

Differential pressure switch 930 EX adjustable

Adjustable differential pressure switch for monitoring overpressure, vacuum and differential pressure of air or other non-combustible, non-aggressive gases.

The switching pressure can be adjusted without a pressure gauge using a scaled adjustment knob. Various versions with overlapping adjustment ranges between 0.2 mbar and 50 mbar are available for this purpose. As standard, the pressure switch is equipped with a transparent cover of protection class IP54.

Brand : Beck


Applications : 

  • Monitoring air filters and ventilators
  • Monitoring industrial cooling-air circuits
  • Overheating protection for fan heaters
  • Monitoring flows in ventilation ducts
  • Controlling air and fire-protection flaps
  • Frost protection for heat exchangers Ex zones 1, 2 and 21, 22 with ATEX type examination


Technical Data : 

  • Setting ranges:

    TypeAdjustable switching points betweenMaximum operating pressure
    930.80BEx20 und 300 Pa10 kPa
    930.84Ex30 und 400 Pa10 kPa
    930.83Ex50 und 500 Pa10 kPa
    930.85Ex200 und 1.000 Pa10 kPa
    930.86Ex500 und 2.500 Pa10 kPa
    930.7BEx1.000 und 5.000 Pa10 kPa


  • Temperature range:
    Medium and ambient temperature from –20°C to +85°C
    Storage temperature from –40°C to +85°C


  • Diaphragm material:
    Silicone, tempered at 200°C free of gas emissions (other materials on request).


  • Pressure connection:
    2 plastic pipe connection pieces (P1 and P2), external diameter 6.0 mm.


  • Electrical rating:
    24 VDC/100 mA
    30 VDC/60 mA


  • Electrical connection:
    AMP flat plug, 6.3 mm x 0.8 mm, in accordance with DIN 46244 or push-on screw terminals.


  • Protection class:
    IP 54 with cover


  • Arrangement of contacts:


Data Sheet



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