Custom-made pressure monitoring.
Custom-made pressure monitoring.

Differential pressure switch 930 EX adjustable from 20 to 5000 Pascal

Differential pressure switch 930 EX adjustable with cable conduit

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.


  • 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:

    Type Adjustable switching points between Maximum operating pressure
    930.80BEx 20 und 300 Pa 10 kPa
    930.84Ex 30 und 400 Pa 10 kPa
    930.83Ex 50 und 500 Pa 10 kPa
    930.85Ex 200 und 1.000 Pa 10 kPa
    930.86Ex 500 und 2.500 Pa 10 kPa
    930.7BEx 1.000 und 5.000 Pa 10 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:

Product Configurator



6550 Climaset® with 2 metal tubes, PVC hose

6555 Climaset® with 2 ABS tubes, PVC hose

6556 Climaset® with 2 metal tubes 90°, silicone hose

6557 Climaset® with 2 ABS tubes, silicone hose

Connecting pipe

6551 Connecting pipe plastic

6552 Connecting pipe metal 90°

6553 Rubber gromet


6428 Cardbox for single packing, without accessories

6429 Cardbox for single packing, with accessories


6424 PVC hose ID5x1.0mm, 100m roll

6425 Silicone hose ID 5x1.5mm, 100m roll

Mounting Elements

6401 Bracket, L-form with four screws

6402 Bracket, S-form with four screws

6481 Bracket plastic, L-form

6482 Bracket, S-form

Screw terminals

6415 Screw terminals, 3 pcs.


Data sheet differential pressure switch 930 EX

Operation Instructions differential pressure switch 930 EX

ATEX EC-Type Examination Certificate