Conversion switch, also known as combination switch, is a switching device that plays an important role in circuits. The operation mode of the switching switch is usually a flat operation with left and right rotation, which is different from the up and down flat operation of the knife switch. By rotating the switch handle, the contacts will move from one position to another, thereby transmitting signals or power in the circuit to different paths.

A switching switch is a type of electrical device that can be used for switching between two or more power sources or loads. It can switch circuits by operation, switching them from one set of connections to another. Mainly used for infrequently connecting and disconnecting circuits, connecting power and loads, measuring three-phase voltage, and controlling the forward and reverse rotation and star delta starting of small capacity asynchronous motors.