E Series multipurpose control 24 hour time switch. 2 Channels and SPST output dry contact. Applicable for signs, air conditioning, lighting, sump pumps, and ventilating fans. Scheduling: 20 on/off set points repeat each day. Minimum setting 1 minute. Daylight saving: automatic adjustment (can be omitted). Leap year: automatic compensation. Manual override: until the next regularly scheduled on or off, automatic operation then resumes. Clock format: AM/PM. Power outage backup: permanent schedule retention. Supercapacitor provides 4 days of real time backup. Momentary options: for mechanically held contractors. Timing accuracy: line frequency. Input voltage: 120-277 VAC, 50/60 Hz. Terminal range: #8 - #16 awg. Operating temperature: -40 to +149 degrees F. Power consumption: 6VA maximum. Enclosure: plastic indoor/outdoor NEMA 3R is standard with lockable hasp.