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The breaker will trip to the off position because of the heat caused by more amps than it is rated for. Only lightening strikes do odd things. And a loose breaker connection can arch causing limited damage to breakers.

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Only under extreme circumstances, like a lightning strike to the mast head. Breakers have a current interrupting rating. For a small home distribution breaker rated at 15 amps, it has an maximum RMS symmetrical interruption of 10,000 amperes. The breaker will not blow up but it will stop the current flow up to 10,000 amps. Under normal operation the breaker will trip when it reaches its operational set point, meaning that when the load current goes beyond the breakers rating, which is found on the handle, it will disconnect the circuit load.

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14y ago
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5mo ago

High current on a breaker can cause it to trip or cut off power to prevent overheating and potential fire hazards. If the current exceeds the breaker's capacity for an extended period, it may damage the internal components and cause the breaker to fail, but not "blow up" in the traditional sense.

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Q: Can too much current on a breaker cause it to blow up?
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