How does fuse protect wires from overheating?

A fuse protects wires from overheating by acting as a safety device that interrupts the electrical circuit when the current exceeds a predetermined level. When excessive current flows through the wire, the fuse element melts, breaking the circuit and stopping the flow of electricity. This prevents the wires from overheating, which could lead to insulation damage, fires, or other hazards. By providing this safeguard, fuses help ensure the safe operation of electrical systems.