Phoenix 69MB6LY 70/100 PSI 1-Port Air Compressor Switch with Unloader Valve & Auto/Off (Furnas type) 3 Year Warranty against defects and failures 70 - 100 PSI air compressor switch 1-port, 1/4" NPT pipe fittings Auto/Off lever = yes, Unloader valve = yes Maximum motor switching capacity = 1.5HP (20 full load amps) @ 120V / 2HP (12 full load amps) @ 240V