The pressure switch is an electro-mechanical device that turns the compressor on an off as needed. It will wear out. Contact points heat up and cool down everytime the compressor turns on or off. By incorporating a heavy duty pressure switch with larger contacts, you extend the life of the pressure switch. Pressure Switch, Air Compressor, Standard Action, Factory On/Off Set 95 to 125 PSI, Pressure Range 60 to 200 PSI, Adjustable Differential, Differential Pressure 28 to 40 PSI, Burst Pressure 500 PSI, Port Type 4-Port 1/4 In NPT (Female), 1/4 In Compression Unloader, Diaphragm Actuation Type, Manual Switch Action Auto/ Off, Single Phase, DPST Contact Type, 25 Amps, NEMA 1 Enclosure, Temp Range -22 to 257 F, Standards UL/CSA
25 AMP HEAVY DUTY AIR COMPRESSOR PRESSURE SWITCH FOR ELECTRIC COMPRESSORS
95-125 PSI, FOUR PORT TANK CONNECTION ALLOWS FOR GAUGE AND SAFETY RELIEF VALVE
1/4" COMPRESSION SIDE MOUNTED UNLOADER, 28 - 40 DIFFERENTIAL
HEAVY DUTY PRESSURE SWITCHES LAST LONGER THAN STANDARD PRESSURE SWITCHES
REPLACES MANY MODELS, UL Listed and CSA Certified.