703-UJ Pressure Switch

Stainless steel, UL rated, explosion proof design

Our heavy duty 703-UJ adjustable pressure switch is ideal for use in gaseous or liquid fluid systems. Designed for easy field adjustment, it features a tamper-resistant locking mechanism to maintain set point integrity.

Features

  • Field adjustable pressure
  • Piston
  • 6-5000psig range





Advantages

  • Snap-action electrical switch tested to 1 million cycles
  • 316L Stainless Steel construction for excellent corrosion resistance
  • Exceptional accuracy and repeatability
  • High overpressure capability

Applications

  • Off-shore exploration
  • Petrochemical processing
  • Industrial OEM equipment
  • Oil and Gas, Pipelines
  • Control Panels

Specifications

  • Temperature range from -40 to 160°F
  • Pressure connection: 1/4"-18 NPT
  • Electrical at 28 VDC:
    • 7 amps resistive
    • 4 amps inductive
    • 2 1/2 amps lamp load
  • Single pole double throw
  • Double pole double throw
  • 1/2”-NPT electrical connection with 5 full threads for conduit engagement
  • Factory-sealed lead wires - Type UL 1015 AWG #18, 24”
  • Hydraulic and electric modules AISI 316 stainless steel
  • UL listed for use in hazardous locations:
    • Class 1: Division 1, Groups A, B, C, D
    • Class 2: Groups E, F, G
  • NEMA Type 7 rating
Operating Pressure Data

Series 
Range Indicator 		 Pressure Range Dead Band* Max System Pressure Proof Pressure
PSIG BAR PSIG BAR PSIG BAR PSIG BAR
703-U 35 6 - 35 0.41 - 2.41 2 / 4 0.14 / 0.28 400 27.58 600 41.37
703-U 60 15 - 60 1.03 - 4.14 3 / 7 0.21 / 0.48 400 27.58 600 41.37
703-U 250 50 - 250 3.45 - 17.24 8 / 20 0.55 / 1.38 600 41.37 900 62.05
703-U 750 200 - 750 13.79 - 51.71 25 / 70 1.72 / 4.83 3000 206.84 4500 310.26
703-U 2500 700 - 2500 48.26 - 172.37 80 / 225 5.52 / 15.51 5000 344.74 7500 517.11
703-U 5000 2500 - 5000 172.37 - 344.74 220 / 400 15.17 / 27.58 7500 517.11 10000 689.48