This Intermatic WH40 Mechanical Timer is a brand new, sealed water heater timer designed for heavy duty use. It features a digital control style and a traditional decorative style, with a square box shape and a stainless steel, plastic, and metal construction. The timer has a maximum amperage of 40 A and a voltage of 208-277 V, with a DPST on/off interruption type and a single switch. It measures 5in. in length, 4.25in. in height, and 3in. in width, and has a single gang and two poles. The timer is a unit type with a timer feature, and is designed for use in the home or garden, electrical supplies, and electrical outlets, switches, and accessories.