Percentage Cycle Timer Number of Poles 1 Input Voltage 120/240V AC HP @ 120V 1 hp Min Time Setting 1 sec Max Time Setting 3 hr 52 min Amps 20 A Contact Form SPST NEMA Rating 3R HP @ 240V 2 hp Length 5 3/4 in Width 3 1/2 in Depth 2.8 in Mounting Surface Contact Type SPST Standards CSA