Differential Pressure Switch - DA, DA10

Brand: WIKA Alexander Wiegand SE & Co. KG

These high-quality differential 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.
  • No power supply needed for switching of electrical loads. 
  • Robust switch enclosure from Aluminum alloy, IP66, NEMA 4X. 
  • Setting ranges from 0 ... 16 mbar to 0 ... 40 bar with high static and high one-sided pressure up to 160 bar. 
  • Repeatability: ≤ 1 % of span. 
  • 1 or 2 independent set points, SPDT or DPDT, high switching power up to AC 250 V, 20 A. 


Model DA

  • Double Diaphragm with transmission shaft, without Sealing Elements

Model DA10

  • Single Diaphragm with transmission shaft without Sealing Elements
  • For Clean Gas or Non-Condensing vapour only.

Switch Enclosure

  • Aluminium Alloy, Copper-Free, Epoxy Resin Coated, tamperproof. Laser-engraved product label from Stainless Steel

Ingress Protection

  • IP66 per EN/lEC 60529, NEMA 4X

Permissible Temperature

  • Ambient: Tamb: -30° to +85° C

Switch Contact

  • Micro switches with fixed dead band
  • 1 x or 2 x SPDT (Single Pole Double Throw)
  • 1 x DPDT (Double Pole Double Throw)
  • Micro switches with Adjustable dead band
  • 1 x SPDT (Single Pole Double Throw)
  • The DPDT function is Realised with 2 simultaneously triggering SPDT micro switches within 0.5 % of the Span.

  • Differential 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
  • Filter and level monitoring


show more