PRESSURE SWITCH CONTROL AIR COMPRESSOR 140 - 175 1 PORT HEAVY DUTY 26 AMP HEAVY DUTY 26 AMP PRESSURE SWITCH Air Compressor Pressure Switches For all global air compressor and water applications. Diaphragm act Model SP-205 UL Listed and CSA Certified. DPST switch Rated 26A Temp. range: -22 to 257F Pressure Switch, Air Compressor, Standard Action, Factory On/Off Set 140 to 175 PSI, Pressure Range