12 Series - Vibration Resistant, 316 Stainless Steel


United Electric (UE) 12 Series hazardous area switches are ideal for operation in tough applications where space is at a premium. A snap-action Belleville spring assembly is used to provide vibration resistance and prolonged switch life. The 316 stainless steel enclosure and hermetically sealed switch provide rugged protection from the environment. Approved for use in hazardous locations worldwide, the  United Electric 12 Series is installed within applications ranging from offshore oil rigs to rotating equipment, and more.


  • Class 1, Divisions 1 & 2, Zone 1
  • UL listed, cUL certified, ATEX flame-proof & CE (LVD, PED) compliant
  • Compact, 316 stainless steel enclosure
  • Belleville spring design provides set-point stability and vibration resistance
  • SPDT or DPDT hermetically sealed switches
  • Variety of pressure sensor materials, including welded stainless steel diaphragm
  • Convenient field adjustment through concealed adjustment compartment; optional cover locking ring prevents incidental tampering
  • 72″ lead-wire with strain relief provided
  • Adjustable set-point ranges:
    • Pressure: 1 to 6000 psi, 0,1 to 413,7 bar
    • Differential Pressure: 0.7 “wcd to 150 psid, 1,7 mbar to 10,3 bar
    • Temperature: -130 to 650 ºF -90 to 343.3 ºC
  • United Electric
12 Series
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