United Electric Controls 120 Series Pressure and Temperature Switches

Explosion-proof SPDT/DPDT and multi-switch output for control and safety applications

Heavy industrial processes rely on 120 Series pressure and temperature switches to protect equipment and personnel while preserving process uptime. The 120 Series is simple to install in hazardous location areas and perform critical alarm, safety and emergency shutdown functions. As an electromechanical switch, it can safely operate independently of the control system and switch reliably when needed, free from potential communication errors or cyber concerns.

Typical applications that utilize the 120 Series include rotating equipment such as pumps, turbines, and compressors, heat tracing, combustion systems, and oil, gas and chemical processing.

Features
  • SIL 2 certified (SIL 3 capable) switch providing reliable local switching of final element in safety instrumented systems (SIS)
  • Simplified installation with ample access to wiring compartment, terminal block, and set point adjustment
  • Protect piping and vessels with heat trace/freeze protection temperature models
  • Application versatility achieved through a variety of ranges, microswitches, sensors and process connections
120 Series

35 items

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  • United Electric 120 Switches H122-S164B-9683
    H122-S164B

    United Electric Controls

    Product Type: General Purpose Switches

    United Electric Controls H122 Pressure Switch, 0-200 psi setpoint range, two SPDT, 15A@125/250/480 VAC, 3/4" FNPT elect. conn., NEMA 4X, 7 & 9 encl., welded 316LSS bellows, 1/2" FNPT press. conn., external adjust. w/ref. dial
    Qty in Cart: 0
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  • United Electric 120 Switches H122-S156B-95257
    H122-S156B

    United Electric Controls

    Product Type: General Purpose Switches

    United Electric Controls H122 Pressure Switch, 0-100 psi setpoint range, two SPDT, 15A@125/250/480 VAC, 3/4" FNPT elect. conn., NEMA 4X, 7 & 9 encl., welded 316LSS bellows, 1/2" FNPT press. conn., external adjust. w/ref. dial
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  • United Electric 120 Switches H122-S146B
    H122-S146B

    United Electric Controls

    Product Type: General Purpose Switches

    United Electric Controls H122 Pressure Switch, 0-30 psi setpoint range, two SPDT, 15A@125/250/480 VAC, 3/4" FNPT elect. conn., NEMA 4X, 7 & 9 encl., welded 316LSS bellows, 1/2" FNPT SS press. conn., external adjust. w/ref. dial
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  • United Electric 120 Switches H122-S134B
    H122-S134B

    United Electric Controls

    Product Type: General Purpose Switches

    United Electric Controls H122 Pressure Switch, 30" Hg Vac-20 psi setpoint range, two SPDT, 15A@125/250/480 VAC, 3/4" FNPT elect. conn., NEMA 4X, 7 & 9 encl., welded 316LSS bellows, 1/2" FNPT SS press. conn., external adjust. w/ref. dial
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  • United Electric 120 Switches H122K-S157B
    H122K-S157B

    United Electric Controls

    Product Type: General Purpose Switches

    United Electric Controls H122K Differential Pressure Switch, 10-100 psid setpoint range, two SPDT, 15A@125/250/480 VAC, 3/4" FNPT elect. conn., NEMA 4X, 7 & 9 encl., welded 316LSS bellows, 1/2" FNPT SS press. conn., external adjust. w/ref. dial
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  • United Electric 120 Switches H122K-559
    H122K-559

    United Electric Controls

    Product Type: General Purpose Switches

    United Electric Controls H122K Differential Pressure Switch, 10-100 psid setpoint range, two SPDT, 15A@125/250/480 VAC, 3/4" FNPT elect. conn., NEMA 4X, 7 & 9 encl., Teflon and Buna N diaph. and Buna N o-ring, 1/4" FNPT alum. press. conn., external...
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  • United Electric 120 Switches H122-703
    H122-703

    United Electric Controls

    Product Type: General Purpose Switches

    United Electric Controls H122 Pressure Switch, 30-300 psi setpoint range, two SPDT, 15A@125/250/480 VAC, 3/4" FNPT elect. conn., NEMA 4X, 7 & 9 encl., Buna N diaph. and o-ring, 1/4" FNPT nickel-plated brass press. conn., external adjust. w/ref. dial
    Qty in Cart: 0
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  • United Electric 120 Switches H122-554
    H122-554

    United Electric Controls

    Product Type: General Purpose Switches

    United Electric Controls H122 Pressure Switch, 0-30 psi setpoint range, two SPDT, 15A@125/250/480 VAC, 3/4" FNPT elect. conn., NEMA 4X, 7 & 9 encl., Teflon diaph. and o-ring, 1/4" FNPT 316SS press. conn., external adjust. w/ref. dial
    Qty in Cart: 0
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