A rotary switch is a switch operated by rotation. 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".

What is the use of selector switch?

What is selector switch in electrical? A selector switch can control on or off of different currents circuit by rotating the handle. Common used for control consisting of a mechanical or electrical or electronic device for making or breaking or changing the connections in a circuit.

What is the meaning of selector switch?

: an electric switch that selects a particular circuit or group of circuits (as on a telephone switchboard)