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400 Series Pressure and Temperature Switches

400 Series Pressure and Temperature Switches

The 400 Series is a versatile family of vacuum, pressure, differential pressure and temperature switches for applications that require single or multiple switching capabilities. Dual and triple switch versions provide multi-output for alarm and shutdown, pre-alarm and alarm, high/low limit or level staging functions.

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Pressure, Vacuum, Differential Pressure and Temperature Switches

The 400 Series is a versatile family of vacuum, pressure, differential pressure and temperature switches for applications that require single or multiple switching capabilities. Dual and triple switch versions provide multi-output for alarm and shutdown, pre-alarm and alarm, high/low limit or level staging functions.

A wide variety of microswitch and process connection options, along with a weather-tight enclosure, make the 400 Series an ideal choice for most ordinary location applications. Its worldwide use is assured with approvals and certifications to agency standards.

Widely used throughout the process industries, the 400 Series provides threshold protection and control for many critical functions. Typical installations are found in industrial gas production, energy generation including pumps, turbines and compressors, pulp and paper, and water and wastewater treatment.


  • 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 Vac to 344 bar

    • 0.2 “wcd to 500 psid

    • 0,5 mbar d to 34,5 bar d

    • -180 to 650 ºF

    • -117 to 340ºC

  • Approvals: UL, CSA, CE, TUV

  • UL listed and cUL certified.

  • CE compliant to low voltage directive and pressure equipment directive.

  • Optional ATEX or GOST 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 flushmount connection

  • Pump switch models with wide adjustable deadband


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