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Old 09-27-2018, 07:48 PM   #12
Beau388
Senior Member
 
Brand: Thor Motor Coach
Model: Hurricane 31S
State: Texas
Posts: 4,157
THOR #6411
Quote:
Originally Posted by The Gritz Carlton View Post
"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.
True, but if you use a 30 amp CB with 12 gauge and your device draws 28 amps, the wire will over heat (exceed 90 degrees C) and possibly start a fire. The National Electric Code (NEC) states the BC or fuse is there to protect the wire and not the devices on the feed.
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Jim & Roy Davis
2016 Hurricane 31S
1961 Rampside in tow
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