This Intermatic T104 24 Hour Mechanical Time Switch DPST is a high-quality electrical switch suitable for both indoor and outdoor use. It features a rotary switch style, dial control style, and a single throw with double pole configuration (DPST). The switch is made of durable metal material with a steel finish and is dustproof for added protection. With a maximum amperage of 40A and current rating of 31-40A It also includes a timer function and is suitable for commercial applications. The switch is designed with a rectangular box shape and can be easily mounted on the wall with screws.