Automatic transfer switch is an electrical device that plays a crucial role in emergency power supply systems. It ensures the continuous power supply and reliability of the load circuit by monitoring the status of the power circuit in real-time and automatically performing switching operations. During the power conversion process, the automatic transfer switch can ensure continuous power supply to the load circuit, avoid power interruption, and thus improve the reliability and stability of power supply. It is widely used in places that require high reliability power supply, such as hospitals, banks, power plants, chemicals, metallurgy, airports, docks, office buildings, hotels, shopping malls, sports fields, military facilities, etc.

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.