The TMGM40AV 24-Hour Auto-Voltage Time Switch is a universal electromechanical control, which automatically detects the input voltage without the use of a DIP switch or selector pins. The time switch automatically selects any voltage between 120 VAC and 277 VAC. It controls high amperage loads for lighting, HVACR, pumps, motors, fan controls, access controls, agricultural facilities, and general purpose electrical circuits. The mechanism is mounted in a compact UL Type 3R outdoor enclosure and features a DPDT Switching Configuration standard. Features 96 captive trippers enable 48 ON/OFF operations each day Type 3R Outdoor Enclosure Manual override switch (ON/Auto/OFF) Easy-to-set true clockface Power and status LED indicators Benefits Once clock to stock—replaces up to 100 mechanical timers Mechanism snaps into many enclosures for easy upgrading Automatically adjusts voltages between 120 and 277 VAC without a DIP Switch Chip board carton, sold individually Technical Specifications N.O. Contacts: 40 Amp Resistive, 120-277 VAC 1 HP (16 FLA, 90 LRA), 120 VAC 2 HP (12 FLA, 52 LRA), 208-277 VAC 30 Amp Ballast, 120 VAC 20 Amp Ballast, 277 VAC 15 Amp Tungsten, 120 VAC 300 VA Pilot Duty, 120-240 VAC N.C. Contacts: 30 Amp Resistive, 120-277 VAC 1 HP (12 FLA, 30 LRA), 120 VAC 2 HP (10 FLA, 30 LRA), 240 VAC 2 Amp Tungsten, 120 VAC 10 Amp Ballast, 277 VAC Operating Temperature Range: -40°F to 131°F (-40°C to 55°C) Battery Backup Models: -40°F to 131°F (-40°C to 55°C) Operating Humidity: 0 to 95% non-condensing Wire Connections: Screw box lug terminals up to one #8 AWG wire Electrical Life: 50,000 operations at full load