Quote:
Originally Posted by timmy
What would cause resistance in the circuit breaker it’s just an on off switch , arcing ?
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The circuit breaker is a common failure point, it's not just an on off switch, it has a thermal element that reacts to current, and causes the breaker to trip when it goes over set point.
carbon on the contacts is the reason for most fails.
If you are seeing large voltage drop across it, then it's clearly bad, you can temp jumper it to see if the voltage problem goes away.