What is a fuse?

A fuse is a safety device that is designed to protect an electrical circuit from overcurrent or short circuit conditions. It consists of a metal wire or strip that melts when too much current flows through it, breaking the circuit and preventing damage to the electrical components. Fuses are commonly used in electrical systems to prevent fires and other hazards caused by excessive current flow.

A fuse is a sacrificial component that protects an electrical circuit by breaking open in case of a fault. It is a thin wire made of lead, zinc or alloys of tin, silver, etc. It is connected in series with the electrical circuit. When the current flowing through the fuse exceeds its rated capacity, the fuses melts and breaks the circuit. This prevents the flow of excessive current and prevents damage to the circuit and the equipment connected to it.