DPST Pressure Switch For Air Compressors 40 To 175 Psi Diaphragm Actuated Auto Off Four Port One Quarter Inch FNPT Standard Setting 14 Psi With Durable Diaphragm Actuation For Reliable Auto Control In The Shop

DPST 40-175 psi air compressor pressure switch, single unit
✔️ 4-port 1/4 FNPT, auto/off, 140/175 psi, UL listed

This pressure switch is designed for use with air compressors and uses a diaphragm actuation to control motor start/stop. It’s commonly found in workshops, garages, and shop air systems to maintain set pressure and prevent over-pressurization.

✅ Pressure range: 40-175 psi
✅ Differential: 30-65 psi
✅ Port type: 4 x 1/4" FNPT
✅ Electrical contact form: DPST
✅ Switching capacity: 4 kW / 4 HP
✅ Unloader: 1/4" compression
✅ Temperature range: -22 to 257 F
✅ Standards: UL Listed, CSA Certified
✅ Max cut-out pressure: 11 Bar / 160 psi

💡 Why choose a diaphragm actuated pressure switch for air compressors?

This handy design delivers reliable sensing and long service life in shop air setups. - Diaphragm actuation provides steady, precise control of cut-in and cut-out pressures - Durable construction suits frequent cycling in typical workshop environments - DPST wiring supports straightforward auto/off control and easy integration - UL Listed and CSA Certified for safety and regulatory compliance