A rotary switch is an electrical switching component that controls the on/off switching of a circuit through a rotary motion. In various circuits, rotary switches can be used as selectors, switchers, or regulators, and have a very wide range of applications.
A rotary switch typically consists of a knob, contact plates, a spring, a mounting handle, and a mounting plate. The knob is the control component, the contact plates work in conjunction with the knob, the spring ensures reliable contact, and the mounting handle and mounting plate are used to mount the knob.
