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

Differential pressure switch 930 with UL approval adjustable from 20 to 5000 Pascal

Differential pressure switch 930 with UL approval adjustable and 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

Technical data

  • Setting ranges:
    Type Adjustable switching points between Maximum operating pressure
    930.80U 20 und 200 Pa 10 kPa
    930.80BU 20 und 300 Pa 10 kPa
    930.84U 30 und 400 Pa 10 kPa
    930.83U 50 und 500 Pa 10 kPa
    930.85BU 100 und 1000 Pa 10 kPa
    930.85U 200 und 1000 Pa 10 kPa
    930.86U 500 und 2500 Pa 10 kPa
    930.87U 1000 und 4000 Pa 10 kPa
    930.87BU 1000 und 5000 Pa 10 kPa
  • Temperature range:
    Medium and ambient temperature from –20°C to +60°C
    Storage temperature from –40°C to +85°C
  • Diaphragm material:
    Silicone, free of gas emissions.
  • Pressure connection:
    2 plastic pipe connection pieces (P1 and P2), external diameter 6.0 mm.
  • Electrical rating:
    Standard version: max. 1,5 A (0,4 A) / 250 VAC / 50-60 Hz
    Low voltage version: max.0,1A / 24VDC.
  • Electrical connection:
    Tab terminals 6.3×0.8 mm in accordance with DIN 46244 or push-on screw terminals.
  • Protection class:
    IP 54
  • 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

Screw terminals

6415 Screw terminals, 3 pcs.


Data sheet differential pressure switch 930 with UL approval