It is composed of a non-flammable thin metallic wire with a low melting point. The Electric Fuse works on the basis of the heating effect of the Electric Current. There is a clear plastic window in some Fuses from which one can check if they are still good. In order to stop the flow of Electricity, the Electric Fuse gives up its life. As a result of which the Current stops flowing since the wire has broken. The wire inside the Fuse melts if there is an occurrence of high Current due to a short Circuit or an overloaded Circuit. For example, in order to protect the wiring of the vehicles, a Fuse panel is placed near the batteries of the Car. A Fuse can be sacrificed if anything in the Circuit goes wrong since they are weak points that are intentionally placed in a Circuit. If a fault causes a flow of excess Current then a thin Conductor is used to break the Circuit by melting or separating it, the thin Conductor used is known as an Electric Fuse. Normally an alloy of tin and lead is used as the Fuse wire, as it has high resistivity and low melting point. The thickness of the Fuse wire is determined based on the amount of current flow in the circuit.

The Fuse is made up of a material which has high resistivity and low melting point, so that it melts down due to overheating of the wire during high current flow. It is installed in a circuit to stop the flow of excessive current. An Electric Fuse is an Electric device which interrupts the flow of current in an Electric circuit.

Fuse definition