Quote:
Originally Posted by The Gritz Carlton
"Circuit breakers are there to protect the wiring and not the device using the electricity. If your wiring is 10 ga to the A/C, then it is ok. If the A/C wiring is 12 ga then stick with a 20 amp."
It's the draw from your appliance that will trip the breaker...not the gauge of the wire.
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This is true. In most cases the wire size is based on load size, which also determines the breakers size. If the load pulls too much current the wire will over heat and destroy itself (and maybe more). The circuit breaker interrupts that current and saves the wire and maybe the RV or house.