Transfer switches have advantages such as multiple contacts, multiple positions, small size, reliable performance, convenient operation, and flexible installation. The use of conversion switches can simplify control or measurement circuits, avoid operational errors, and reduce the number of components used. A conversion switch is a switching device that plays a crucial role in a circuit. It achieves circuit switching and control through the combination and rotation of multiple contacts. It is widely used in machine tool electrical control, motor control, and measurement systems.