Re: replacing push-button motor

Posted by PackardV8 On 2011/10/18 13:41:26

Circuit breakers have their plcae. But they are NOT fail safe. A fuse IS. CB's can loose capacity to protect just like a fuse looses in the opposite direction each time it gets hit. A CB can hang closed failing to protect. Use the CB at recommended amperage. Use a fuse slightly higher to protect against CB failure. A fuse blows it blows and that's that. If the fuse is blowing then u know three is something wrong for further investigation. A CB clicking is just a shoulder shrugger.

CB's get their devine trendy reputation as great and wonderful because house insurers tout and often demand them. But the real reason house insurance wants CB's is to differentiate 80 amp service from 100 amp service. Older houses (fused) used a lower service rate ( NOT in all cases) than the more modern houses with circuit breakers.