120 Series - Rugged, Explosion-proof


As safety requirements become more stringent, the determining factor in specifying an industrial pressure, differential pressure and temperature switch rests upon that switch protecting equipment, processes and personnel.

Meeting hazardous location requirements through adherence to UL, CSA, and ATEX standards, United Electric’s 120 Series is the choice where potentially explosive or highly corrosive atmospheres exist. The United Electric 120 Series offers a variety of pressure, differential pressure, vacuum and temperature ranges, as well as port connections, wetted materials and sensor types.


  • One or Two SPDT Outputs, Optional DPDT or Hermetic Seal Switch Outputs Available
  • Internal Adjustment with Reference Scale or External Calibrated Dials with Tamper-Resistant Cover
  • UL, CSA Approvals for Class I, Divisions 1 and 2 Environments, CENELEC Flame-Proof Enclosure or FM Approval Available on Some Models
  • Welded Diaphragm or Bellows Sensor
  • Pressure Ranges from 30″ HgVac to 6000 PSI
  • Terminal Block Wiring
  • United Electric
120 Series
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