744-S Pressure Switch

Rugged stainless steel switch ideal in extreme environments

Our Model 744-S, fixed-setting pressure switch is a miniature piston-operated factory set design ideal for applications with limited installation space. This piston-operated switch model thrives in tough environments containing oil, fuel, water, dust, vibration or shock.

Features

  • Fixed pressure
  • Piston
  • 8-6000psig range


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
  • Compactors
  • Compressors

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
  • Lead wire connectors
  • Single pole single throw
  • Single pole double 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
744 1 8 - 125 0.55 - 8.62 4 / 14 0.28 / 0.97 1500 103 2250 153
744 6 50 - 275 3.45 - 18.96 10 / 27 0.69 / 1.86 2400 165 3500 241
744 2 75 - 500 5.17 - 34.47 15 / 45 1.03 / 3.10 3000 207 4500 310
744 7 130 - 1000 8.96 - 68.95 20 /  95 1.38 / 6.55 3000 207 8000 552
744 3 300 - 1500 20.68 - 103.42 45 / 130 3.10 / 8.96 4500 310 6800 469
744 4 1250 - 3000 86.18 - 206.84 150 / 240 10.34 / 16.55 6500 448 10000 690
744 5 2500 - 6000 172.37 - 413.68 250 / 425 17.24 / 29.30 7500 517 12000 827