The heavy-duty mechanical time switch is designed for industrial commercial and residential applications. Features a high horsepower rating that is ideal for loads up to 40A resistive from 125V and direct 24 hour time switch control of most loads. All models are equipped with (1) On and (1) Off tripper. The unit contains a 1-circuit standard On/Off single pole single throw 40A 4000W capacity. Voltage: 125V Amperage: 40A Wattage: 4000W Color: Gray Certification: CSA Listed.