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Answers (2)
- Toan Nguyen, "Toan Nguyen"
- Contributions:140
Hopefully you have solved your problem. The NEC allows a 10awg wire to pass 30amps. That being said if you were going to use a 120v 30amp and a 120v 20amp outlet you would use one leg of the 10/3 to serve the 30amp plug and use the other leg to serve the 20amp plug. Both outlets can share the neutral. The neutral provides a path for the unbalance (difference between) the two legs. Now if this were a 220v application like a laundry room where you were serving a 30amp 220v dryer and a 20amp 120v washer, you would not want to use the 10/3 to accomplish that. The reason is, if you were using both appliances at the same time you would exceed the wire rating for one and also the breaker rating. I would suggest running a 10/3 for the dryer and a 12/2 for the washing machine.
- James Callas, "ABBAUSA"
- Contributions:957
That is best answered by a licensed electrician.
I have seen electricians run two circuits on 12/3 with ground. That is two 20 amp circuits. I was told the neutral handles the unbalanced load.
You are mixing two different circuits and 10/3 is normally used for one 30 amp circuit only. Like dryers and water heaters.
20amp circuits are run with a 12/2 with ground usually.
I think you will be making a mistake to try and combine this two circuits.
Handle each one with its own breaker and own correctly sized wire.
You will never regret doing it correctly. Yours and the life of your Family is at stake.
Again consult with a licensed electrician, I am only giving things i have observed and I am NOT a licensed Electrician.
Again consult with an licensed electrician.
Good Luck!
James Callas - Realtor®
I have seen electricians run two circuits on 12/3 with ground. That is two 20 amp circuits. I was told the neutral handles the unbalanced load.
You are mixing two different circuits and 10/3 is normally used for one 30 amp circuit only. Like dryers and water heaters.
20amp circuits are run with a 12/2 with ground usually.
I think you will be making a mistake to try and combine this two circuits.
Handle each one with its own breaker and own correctly sized wire.
You will never regret doing it correctly. Yours and the life of your Family is at stake.
Again consult with a licensed electrician, I am only giving things i have observed and I am NOT a licensed Electrician.
Again consult with an licensed electrician.
Good Luck!
James Callas - Realtor®
Can I run 10-3 w/ ground cable from a 60 amp panel, and power a 30 amp outlet and a 20 amp outlet?
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