Question

what is meant by rating of a fuse

Answer 1

The fuse rating means the current need to blow ( break ) the fuse.

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Answer 2

A fuse rating is the current need to blow (break) the fuse. When a fuse has blown it removes electrical power from an electrical circuit. The fuse rating is usually on the side of the fuse. Thefuse rating is usually defined in 'amps' – amps are the unit of measurement of electrical current.