Engineering · Electrical — Protection
The chief advantage of a circuit breaker over a fuse for circuit protection is that a breaker:
- ANever needs to trip
- BCan be reset after a fault and may offer adjustable trip settings✓ Correct
- CCarries unlimited current
- DRequires no maintenance
Explanation
A breaker can be reset (and often has adjustable overload/short-circuit trips) rather than being destroyed and replaced like a fuse, and it can switch the circuit as well as protect it.
Authority: Marine Electrical (USCG engineering topic)
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