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Electronic Knowledge | Fuse

一、Definition

Fuse is an electrical safety device that operates to provide overcurrent protection of an electrical circuit. Its essential component is a metal wire or strip that melts when too much current flows through it, thereby interrupting the current. It is a sacrificial device; once a fuse has operated it is an open circuit, and it must be replaced or rewired, depending on type.

 

二、Function

Provide overcurrent protection of an electrical circuit

 

三、How to orer?

Key points: The rated (ampere) current, rated voltage, brand, safety license, speed, and interrupt capacity are usually indicated on the fuse.

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