A YONGSUNG YSAR2-311L Rotary Switch . These are often chosen when more than 2 positions are needed, such as a three-speed fan or a CB radio with multiple frequencies of reception or "channels". ... Thus a rotary switch provides greater pole and throws capabilities than simpler switches do. Specifications of YONGSUNG YSAR2-311L Rotary Switch: Condition : New Brand: Yongsung Made In : Korea Model: YSAR2-311L Number Of Position: 3 Voltage: 220V   6A Dimensions : 68mm X 32mm X 36mm Weight: 40g Package Includes: 1 x YSAR2-311L Control Panel Switch