Fuses
 

Fuses are protective devices used in electrical distribution systems to prevent excessive current flow and to protect electrical circuits and equipment from damage or fire hazards. They are designed to interrupt the flow of electrical current when it exceeds a certain level, known as the rated current or amperage. When the current passing through a fuse exceeds its rating, the fuse wire or element inside the fuse heats up and melts, breaking the circuit and stopping the flow of electricity. This action helps prevent electrical overloads, short circuits, and other faults from causing damage to the electrical system or connected devices.