400 Series - Differential


The United Electric (UE) 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 UE 400 Series an ideal choice for most ordinary location applications. Its worldwide use is assured with approvals and certifications to agency standards.


  • Rugged, Epoxy Coated Enclosure Type 4x, epoxy coated enclosure
  • One, two or three switch outputs
  • Available with calibrated dials and local pressure indication
  • Adjustable ranges:
    • “WC ranges: 300 “wc vacuum to 250 “wc pressure
    • -746,7 to 622,3 mbar
    • Pressure: 30 “Hg Vac to 6000 psi
    • -1,0 to 413,7 bar
    • Differential pressure: 1″wcd to 200 psid
    • 2.5 mbar to 13,8 bar
    • Temperature: -180 to 650 °F
    • -117.8 to 343.3 °C
  • Approvals: UL, FM, CE
  • United Electric
400 Series
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