Pressure Switch Water Pump Manual Switch Action Auto/Off/Start (1) Port 1/4 in FNPS Pressure Switch Factory On/Off Setting 50/70 psi No Pressure Switch Unloader Pressure Switch Differential 15 to 30 psi Pressure Switch Range 10 to 80 psi Pressure Switch Electrical Contact Form DPST Pressure Switch Action Standard NEMA Rating 1 Series 9013FSG HP @ 1 Phase - 120V 1 1/2 hp HP @ 1 Phase - 240V 2 hp HP @ 3 Phase - 240V 3 hp HP @ 3 Phase - 480V 1 hp