Circuit breakers
- Can be alternatives to fuses.
- They detect a change in the current and safely switch off the supply.
An advantage of circuit breakers is that once a fault is fixed they can be switched back on again, whereas a fuse has to be replaced.
Another advantage of some types is that they work very quickly, so can save lives. A fuse takes time to melt and will not prevent you getting a shock if, for example, you touch a live wire.
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