Pulling 120V outlet from a 240V circuit?

Question

I'm hoping for some advice. I recently installed a built in oven with a gas drop in range on top of it. The oven is 240v requiring a 30 amp circuit (hard wired in a junction box) and the range is 120v needing a 15 amp circuit (it has a grounded plug). I'm planning on running a new circuit for the oven using 10-3 NM with a 30 amp double breaker and install an old work box in the wall to wire it. Now my question, Can I just run a some 10-2 nm from 1 hot wire, the neutral and ground from the 240 line up to a second old work box for the outlet or do I need to run a new circuit for the 120v outlet? All this work will be done in an adjacent cabinet

And a follow up, will there be any issue using a 15 or 20 amp duplex plug (for the range) on the circuit? Should I install a 120v 30amp outlet and use an adapter to go from the 30amp outlet to the 15amp plug

Update : So, if I use the 10-4 wire, the neutral and and ground will be common between the 2 circuits? And could I use 12-2 to run between the junction boxes?

Answer 1

If you are going to run 10-3 why not run 10-4 and put in your two pole breaker and a single pole breaker. And then do the rest like you planned with the 12-2 wire connected to the box with the 10-4 .

Putting in the inline 20 fuse would work but I don't recommend it. If you ever have a fire and an inspector finds it.. you are out of luck because that is not up to code. besides if you sell your house and an inspector finds it he will make you change it.

Good Luck

you are already going 90% correct just go all the way.

Source:

Electrician

Answer 2

With using the 10 - 4 wire, you have 2 wires for your 240v oven (2 hot wires) and you have 2 wires (one hot - one neutral). Then, yes, you run the 12 - 2 from the box with the 10 - 4 in it to your 120v range circuit.

Just so you are aware, when you are running 10 - 4 there are actually 5 wires in it. The bare copper wire is the ground. That can be shared between your 240v circuit and your 120v circuit.

Good Luck.

Source(s):

Electrician

Answer 3

You can tap off the 30 amp circuit with some #12. Its perfectly legal in the NEC. 210.19

Answer 4

You need four wires . Two for the 220 , red @ black , a third for a neutral for 120 red @ white or Black@ white and bare copper for a designated ground .One two pole breaker .

Source(s):

rm

Answer 5

yes put in a 20 amp in line fuse for the stove

Source(s):

building maint man

Answer 6

Go to lowe's they sell a panel [Lemins] 30amp220 15amp 120 it sells for about 35.00 This will make it easy for you. Good Luck