In electrical engineering, a safety device that protects electric circuits from the effects of excessive electric currents. A fuse commonly consists of a current-conducting strip or wire of easily fusible metal; whenever the circuit is made to carry a current larger than that for which it is intended, the strip melts to interrupt it.

This entry comes from Encyclopædia Britannica Concise.
For the full entry on fuse, visit Britannica.com.

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