This outdoor and indoor rated single pole, single throw time switch will run heavy duty appliances such as pool and fountain pumps, water heaters, and air conditioners. Settings repeat at the same time daily, ideal for pools and heaters. Set up to 48 cycles per day. Save money on energy costs and equipment wear and tear by only timing appliances to run when needed. Features include multiple voltage on 1 unit (120, 208/240, and 277V), an industrial grade locking box and NEVER LOSE pins that won"t come out. Manual ON/Off switch. Residential or industrial use. Normally open contacts, 20A, general purpose, 120 277V AC 20A, Resistive 28V AC 1 HP, 120 V AC, 2 HP 240V AC, 1 HP, 277V AC, ballast 124V AC, 10A, ballast 277V AC 8.3A, tungsten 120V AC 5.4A.