What is the job of a fuse in a plug?

The job of a fuse in a plug is to protect electrical appliances and the wiring from overcurrent, which can cause overheating and potential fires. It accomplishes this by breaking the circuit when the current exceeds a safe level, thereby preventing damage to the appliance and reducing the risk of electrical hazards. Fuses are designed to melt and disconnect the circuit when excessive current flows, ensuring safety in electrical systems.