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.
 

Attachments

  • breaker-chart.jpg
    breaker-chart.jpg
    265.4 KB · Views: 377
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.