Air Compressor Pressure Switch For Pros 100 Psi Cutoff, 20 Psi Fixed Differential, One Quarter Inch NPSF Internal, Diaphragm Actuated With Two Way Relief Valve For Electric Motors And Compressors

Single unit air compressor pressure switch, 100 psi cutoff
✔️ 100 psi cutoff, 20 psi fixed differential, 1/4 in NPSF internal

The air compressor pressure switch is a diaphragm-actuated control that automatically starts and stops a compressor motor to maintain set pressure within tanks and lines. It's commonly used in home garages, workshops, and light industrial setups to keep tools performing consistently and to protect equipment.

✅ 1/4" NPSF internal fluid connection
✅ Diaphragm actuated with fixed 20 psi differential
✅ 100 psi cutout with adjustable rising threshold via screw nut
✅ Includes a 2-way pressure release valve
✅ NEMA Type 1 enclosure, IP20 rating; UL Listed, CSA certified
✅ Two-pole NC contacts open on rising pressure

💡 What is a pressure switch used for in air compressor systems?

It is a handy device that regulates motor run time and protects tanks by turning the motor on and off at set points. It keeps tool pressure steady and helps prevent overloads.

- automatic on/off control for air compressor pressure - handy in garages and shops to maintain steady pressure - protects tanks and motors from over-pressurization