Mechanical 40 ampere timer for electric water heaters. Daily operation can be set with trippers from 1 to 23 hours. Makes it possible to shift electricity use into the off peak time periods to save utility costs. Double pole, single throw. No. WH40: Voltage Rating: 240V, Current Rating: 40A, Wattage Rating: 10,000W, CSA Listed?: Yes, CUL Listed?: No, Color: Gray, Pkg Qty: 1, Package Type: BoxIntermatic