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ATEX Differential Pressure Switch 930 Ex

ATEX Differential Pressure Switch 930 Ex

Product Details:


Product Description

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.


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


Adjustable switching points between

Maximum operating pressure


20 und 300 Pa

10 kPa


30 und 400 Pa

10 kPa


50 und 500 Pa

10 kPa


200 und 1.000 Pa

10 kPa


500 und 2.500 Pa

10 kPa


1.000 und 5.000 Pa

10 kPa


 Temperature range:

  • Medium and ambient temperature from 20C to +85C
    Storage temperature from 40C to +85C

 Diaphragm material:

  • Silicone, tempered at 200C 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


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