745 Pressure Switch

Compact Low-Pressure, High-Sensitivity Design

The Model 745 Fixed Setting Pressure Switch is a diaphragm-operated model for low-pressure applications that require high-sensitivity and a compact form factor. It thrives in tough environments and withstands oil, fuel, water, dust, vibration, and shock exposures. Standard electrical and pressure port configurations are listed below. Please consult the factory for custom configurations.

Features

  • Fixed pressure
  • Diaphragm
  • 8-125psig

Advantages

  • Snap-action electrical switch tested to 1 million cycles
  • Gold contact switches for dry circuit applications
  • High overpressure capability
  • Custom configuration
  • High shock and vibration survivability
  • Media compatibility

Applications

  • Off road equipment
  • Industrial OEM equipment
  • Train braking systems
  • Packaging equipment
  • Compactors
  • Compressors
  • Fuel Systems
  • Pneumatic Systems

Specifications

  • Temperature range from -40 to 250°F
  • Pressure connection: 1/4"-18 and 1/8"-27 NPT, 9/16"-18 UNJF-3A
  • At 28 VDC:
    • 7 amps resistive
    • 4 amps inductive
    • 2 1/2 amps lamp load
  • 303 stainless steel hydraulic module housing
  • Polyphenylene sulfide electric module housing
  • Single pole single throw
  • Nitrile "o"-ring, fluorocarbon and ethylene propylene
  • UL Listed
  • NEMA Type 4 rating
  • Integral pressure port snubbing
Operating Pressure Data

Series 

Range Indicator 
Pressure Range Dead Band* Max System Pressure Proof Pressure
PSIG BAR PSIG BAR PSIG BAR PSIG BAR
745 3 8 - 125 0.55 - 8.62 4 / 14 0.28 / 0.97 1500 103 2250 153