Electronic Timer, Operation Mode 7 Days, Number of Channels 1, Contact Form SPDT Momentary, Voltage 120 to 277VAC, Amps 20, HP 120V 1, HP 240V 2, Max. On/Off Cycles 28, Number of Pulse Events 56, Enclosure Noryl Indoor/Outdoor, Mounting Surface, Number of Poles 1, Min. Time Setting 1 min., Max. Time Setting 7 days, NEMA Rating 3R, Color Tan, Backup Device Capacitor, Backup Time 7 days, Operating Temp. 31 Degrees to 131 Degrees F, Display Height 10 In., Display Width 5 In., Height 91/4 In. Also known as -TORK DGUM100A Electronic Timer,SPDT,120/277V-NSI DGUM100A Tork One-Channel DG100 Series Lighting Control With Photo Or Ov