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Wire size vs circuit breaker rating

Webb

Well Known Member
Sponsor
I’ve searched and can’t find a general rule of thumb for wire size vs circuit breaker rating chart.

If you have one, please share.
 
I’ve searched and can’t find a general rule of thumb for wire size vs circuit breaker rating chart.

If you have one, please share.

This may be the chart you're looking for.
 

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Ummm... if you're building an airplane and don't have this chart AND the rest of the book that comes with it I would respectfully submit that you should be updating your technical library. AC 43-13 is the bible for builders.
 
Wire bundles

What is the guidance in terms of wire bundles? AWG 22 -> 5Amps breaker what about if I need to bundle together 2 or 3 AWG 22 wires? If I understand the book correctly the breaker remains 5Amps right?
 
What is the guidance in terms of wire bundles? AWG 22 -> 5Amps breaker what about if I need to bundle together 2 or 3 AWG 22 wires? If I understand the book correctly the breaker remains 5Amps right?

Correct, 5amp breaker. The chart says 15 wires or more in the bundle.
 
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