United Electric 120 Series Explosion-proof Pressure, Vacuum, Differential Pressure, and Temperature Switches

J120-376-QC1 Pressure Switch

B121-121

B121-1316

B121-13161-2200

B121-13272

B121-13272-2200

E121-13273-2200-NC

E121-2BSB

E121-8BS

E121-9054-4BS

E122-2BSB

E122-2BSB-2000

E122-5BS

E122-9171-2BSB

Overview

• SIL2-certified switch
• Class 1, Divisions 1 & 2, Zone 1
• UL listed, cUL-certified, ATEX flame-proof & CE (LVD, PED)-compliant; other worldwide hazardous location approvals available
• Dual electrical conduit openings provide mounting flexibility while terminal block provides ease of wiring
• SPDT, DPDT, or dual SPDT switch output
• Pressure sensor materials, including welded stainless-steel diaphragms and bellows
• Internal or external setpoint adjustment
• Heat trace and freeze protection temperature models
• Adjustable setpoint ranges:
  • Pressure and vacuum: 30 “Hg Vac to 6000 psi
    -1 to 414 bar
  • Water Column: 300 “wc Vac to 250 “wc
    -746,7 to 622,3 mbar
  • Differential Pressure: 0.2 “wcd to 500 psid
    0,5 mbar to 34,5 bar
  • Temperature: -120° F to 650° F -85° C to 343.3° C

Highlights

• Standard product approvals include cULus, ATEX, and IECEx
• Optional approvals for Russia, Ukraine, China, Brazil, and Korea
• Internal adjustment hex or external adjustment via calibrated dial(s) with tamper-resistant cover
• Integral cover lock
• SPDT, DPDT, or dual SPDT output
• Wide variety of sensor materials
• Optional Hastelloy® and Monel® sensor materials for corrosive media
• Wide adjustable deadband models
• Flush-mount sensors
• Heat-tracing temperature models
• Most models available for immediate delivery!