745 Series
Pressure Switches

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.

« Pressure Switches / 745 Series
Responsive image
Responsive image
Responsive image

Features

  • Fixed pressure
  • Diaphragm
  • 7-160psig

Request Product Information

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 and double throw options
  • Fluorosilicone fabric-backed diaphragm
  • UL Listed switching element
  • NEMA Type 4 rating
  • Integral pressure port snubbing

Available Options

  • Snap-action electrical switch tested to 1 million cycles
  • Gold contact switches for dry circuit applications
  • High overpressure capability
  • Custom electrical configurations
  • 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
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 7 – 160 0.48 – 11 2 / 8 0.14 / 0.55 500 34 1000 69

Request Product Information

sales@sigmanetics.com | 973-616-6900

2 North Corporate Drive, Riverdale, NJ 07457 | Sigma-Netics, Inc. © 2020