Why do we use fuses instead of circuit breakers? Like in cars or furnace circuit boards?
In: 7
Fuses are a lot smaller and cheaper and for lower current applications they work just fine
Think about your car fuse box and how many mini fuses they can fit in there. A small resettable breaker is going to be about 10x the size of an automotive mini fuse so you end up needing a lot more space dedicated to the “fuse box”.
Mini circuit breakers are also a lot more expensive. You can get the mini fuses for like $0.01 each, probably less if you’re an automaker buying by the millions. Mini circuit breakers are going to be 10-50x more. An extra $100 in circuit breakers per car for no value add doesn’t make sense for the manufacturers
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