Bourdon Tube Pressure Switch - BWX

Brand: WIKA Alexander Wiegand SE & Co. KG

These high-quality pressure switches have been developed especially for safety-critical applications. The high quality of the products and manufacturing in accordance with ISO 9001 ensure reliable monitoring of your plant.

In production, the switches are traced by quality assurance software at every step and subsequently are 100 % tested.

All wetted materials are from stainless steel as a standard
  • No power supply needed for switching of electrical loads.
  • Robust switch enclosure from 316L, IP 66, NEMA 4X.
  • Setting ranges from 0 ... 2.5 bar up to 0 ... 1,000 bar, vacuum ranges.
  • Ex ia version available.
  • 1 or 2 independent set points, SPDT or DPDT, high switching power up to AC 250 V, 20 A.


Switch Enclosure

  • 316L Stainless Steel, tamper-proof. Laser-engraved product label from Stainless Steel.

Ingress Protection

  • IP66 per EN 60529 / lEC 60529, NEMA 4X

Permissible Temperature

  • Ambient:  Tamb: -40° to +85° C
  • Medium:  TM: -40° to +85° C

Switch Contact

  • 1 x or 2 x SPDT (Single Pole Double Throw)
  • 1 x DPDT (Double Pole Double Throw)
  • 1 x SPDT (Single Pole Double Throw)

Ignition Protection Type (Option)

  • Ex ia I Ma (Mines)
  • Ex ia IIC T6/T4 1) Ga (Gas)
  • Ex ia IIIC T85/T135 1) Da (Dust)

  • Pressure monitoring and control of processes
  • Safety-critical applications in general process instrumentation, especially in the chemical and petrochemical industries, oil and gas industries, power generation incl. nuclear power plants, water/wastewater industries, mining
  • For gaseous, liquid and aggressive media, also in aggressive ambience


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