fuse

A fuse is a safety device that is used to protect electrical circuits from overloads. It is a small piece of wire that melts when too much current flows through it. This breaks the circuit and prevents the wires from overheating and starting a fire.

Fuses are typically made of metal with a low melting point, such as tin or lead. They are installed in electrical circuits in series with the load. This means that the fuse is the only thing that is between the load and the power source.

When too much current flows through the fuse, the wire heats up and melts. This breaks the circuit and prevents the current from flowing any further.

Fuses are an important safety device. They help to prevent fires and other electrical hazards.

The fuse blew and the circuit breaker tripped.