Equipped with a mechanical dial timer, this heavy duty switch supports 2 on/off programs within a 24-hour cycle; once set, it automatically repeats daily-ideal for controlling water heaters, AC units, pumps, signs, lights, and fans. This mechanical timer is designed to handle tough environments, max 40A 120V loads and 2HP motors; for heavy-duty indoor/outdoor applications like pool pumps, fountains, spas, mowers, air conditioners, and more-powering 1 or 2 devices simultaneously. Built with a rugged NEMA-3R enclosure, flame-retardant resin core, and IP44 waterproof protection, this pool pump timer withstands harsh outdoor conditions (-40℉ to 140℉); lockable cover shields internal wiring from weather and unauthorized access. Material: PVC.