Thumbwheel Switches switch between different circuit connections by rotating their external dial wheels. It is usually composed of a base, a rotating dial wheel, an internal contact mechanism and a fixed contact. Users only need to gently rotate the dial wheel to realize the circuit on, off or switch between different gears. The design of the dial switch pays attention to the operation feel and visual feedback, usually marked with a clear gear identifier or indicator on its surface, so that users can accurately identify the current state.

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