The Holman 200551 Rotary Switch 25 AMP controls electrical power by rotating between selected switch positions to open or close internal contacts. Rated for 25 amps, it allows manual selection of operating modes while supplying power to connected heating components and electrical circuits. The switch features a plastic D-shaft with terminal tabs for electrical connections and installs behind the equipment control panel for convenient operation. It is commonly used in commercial toasters, ovens, and other foodservice equipment requiring rotary power control.