What size wire would I need to run a 100 amp subpanel 28 feet away? I have 6/3 wire would that do it?
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This answer might be helpful.– Tester101Commented Mar 19, 2016 at 19:22
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6 AWG copper is not large enough for 100 amperes.– Tester101Commented Mar 19, 2016 at 19:23
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This does seem like a duplicate question. Nothing against you Mel, it was cool to ask, it's a peculiarity of SE's format.– Harper - Reinstate MonicaCommented Mar 19, 2016 at 20:16
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You can feed a 100A panel with #6, you just cannot put that feeder on a 100A breaker. The panel size does NOT have to match the feeder/breaker size. What is this panel going to feed?– Speedy PeteyCommented Mar 20, 2016 at 0:15
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1 Answer
Just to answer the question..
You'd need 4 (Hot, Hot, Neutral, Ground) #1 AWG wires.
- 1 AWG supplies up to 110 amps
- 6 AWG supplies up to 55 amps
If you use the 6 AWG, you could only feed the subpanel with a 50A breaker. Essentially making it a 50A subpanel. It's best to go ahead and get the most out of it if you can by using #1 wire.