Help with DIY dedicated circuit

mental522

@djones...you are very mistaken, he’s running two circuits using the same neutral. Two single pole breakers should be used, one for each circuit. A double pole breaker is designed to use different phases, all he has to do is put the single poles back in where the double pole is. I suggest you stop giving out electrical information, you are clueless.

@mental522

The National Electrical Code permits multiwire branch circuits, but adds requirements to make them safer. Section 210.4(B) states that in the panelboard where the branch circuit originates, all ungrounded conductors must be provided with a means to disconnect them simultaneously. This is usually a double-pole breaker, but two single-pole breakers may be used if they have an identified handle tie.

https://www.jadelearning.com/multiwire-branch-circuits-nec-210-4/

Mike Holt on multiwire branch circuit
https://www.youtube.com/watch?v=_VjZ5ySblew

Not sure if it was suggested, but you could run 12/3 and have 2 separate 20 amp outlets. :) Get an electrician to do it.

If it were me, I’d use 15 amp breakers with spark detectors. You don’t need 20, and 15 will be safer. There’s no audible difference. Also while there ask the electrician about a whole panel surge protector.

Also, in some high-heat areas, you may need to underrate your wiring anyway.


Best,
E

I also recommend an electrician.  One of the comments indicated to make sure both of the "HOT" wires to your two new outlets are on the same phase.   Your stove ran on "220/240 Volt" which means that, in the United States, the two "HOT" wires are just 120V that are out of phase.  When you wire these to the stove, the stove uses both 120V in a push/pull configuration.   You really should have an electrician do the work because you want either one single 20A breaker with both "HOT" wires leading out of that.  Or you could install two 20A single that are BOTH ON THE SAME PHASE to connect to your two "HOT" wires  of your romes 10/3.  However, there are definitely electrical codes to follow and I'm not sure of this particular configuration.  So, again, I highly recommend an electrician do the work and discuss the options with you.

Read your own link jea48 it clearly states to use 2 PHASES ,  I suggest you quit giving advice you are past clueless. If he puts 2 20amp breakers on the same phase using the same neutral wire then the neutral could carry 40amps  his 10/3 existing wire is rated for a 30 amp load which could cause the neutral wire to overheat causing a fire. The breakers need to be on seperate phases where they balance and the neutral carries the difference between the loads, on the same phase the neutral would carry the sum of both.  You can use 2 seperate 20 or 15 amp breakers running one hot black and one hot red  and both use the same white neutral as long as those breakers are NOT on the same phase. Code is to use a linked 2 pole breaker IF it's a 240v  single phase OR multi- wire branch circuit with a SHARED  neutral. The OP needs to call an electrician mental is right  to much nonsense to confuse him.