NSI Tork® Spring Wound Timer, Auto Off Interval Mechanical, Series: A Series, Operation Mode: 30 min, 125/250/277 VAC, 20/10 A, 1 hp, 2 hp, 1 Pole, SPDT Contact Form, 30 min Time Setting, 32 to 122 deg F, Wall Mounting, 5 in H x 3 in W Dimensions Twist knob for time on setting, Time on lengths from 15 min to 12 hr vary by model No neutral required, great for retrofit use as single or in multi-gang box with no de-rating Interval timer Single phase Contact initiation Single gang wall plate enclosure 7 A at 125 VAC (tungsten), 20 A at 120 VAC/10 A at 250 VAC/10 A at 277 VAC (resistive), 20 A at 120 VAC/10 A at 250 VAC/10 A at 277 VAC (inductive) 1 hp at 125 VAC/2 hp at 250 VAC 50/60 Hz frequency No hold in wall time switch White color Without wallplate