The WH40 provides a convenient external override switch. Utilities in many areas of the country offer two electric rates for residential or commercial customers. One rate has the regular daytime electrical rate, the other is "off peak" rate. The off peak rate provides customers with "lower-priced" electricity during the nighttime and weekend periods. These time switches allow the customer to shift electricity use into these off-peak time periods in an attempt to save utility costs. Resistive Wattage is 40 Amp @120 - 480 VAC; Tungsten Wattage is 40 Amp 120 - 277 VAC. Product features 2 HP (24 FLA) 125 VAC; 5 HP (28 FLA) 240 VAC motor.