100 Series

SIL-Certified switch for pressure, vacuum, differential pressure and temperature applications

The 100 Series is a cost-effective, SIL-certified switch for pressure, vacuum, differential pressure, and temperature applications in process plants and OEM equipment. The rugged, one-piece enclosure features a slanted cover for wiring accessibility.

A wide variety of microswitch and process-connection options make this versatile, SIL-certified switch ideal for applications requiring a rugged weather-proof device.

Typical applications that utilize the 100 Series are heat tracing, freeze protection, processing equipment (pumps, compressors), inputs for annunciator panels, and fire suppression systems.


  • SIL-certified switch (SIL2)
  • Rugged, NEMA 4X, epoxy coated enclosure
  • ​SPDT or DPDT switch output
  • ​Easy access wiring
  • ​Single switch output
  • ​Internal reference scale and adjustable deadband available
  • ​Adjustable ranges: 30 “Hg Vac to 5000 psi
    • -1 bar to 344 bar
    • 0.2 “wcd to 500 psid
    • 0,5 mbar to 34,5 bar
    • -120° F to 650° F
    • -85° C to 340° C
  • ​Approvals: UL, CSA, CE, EAC (Russia), Inmetro (Brazil)


Visit our Certifications Page for all 100 series Certifications

  • UL listed and cUL certified.
  • ​CE-compliant to low voltage directive and pressure equipment directive.
  • ​Optional ATEX or EAC intrinsic-safety compliance
  • ​Single switch (SPDT or DPDT) output
  • ​Welded stainless-steel diaphragm models
  • ​Ultra-low pressure, “wc models
  • ​Optional sensor material for corrosive media
  • ​Polished stainless-steel flush mount connection
  • ​Pump switch models with wide adjustable deadband

Installations Manuals


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