A fuse switch is an electrical device that combines the functions of a fuse and a switch. It is designed to protect electrical circuits from overloads and short circuits by interrupting the flow of electricity when a fault occurs. The fuse element melts and breaks the circuit, while the switch allows users to manually turn the circuit on or off. These devices are commonly used in residential and commercial electrical systems. They provide a safe way to control power and ensure that electrical equipment operates within safe limits. Proper installation and maintenance of fuse switches are essential for effective protection and safety.