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#193642 - 04/12/10 06:02 AM Common neutral question
sparkync Offline

Registered: 10/17/02
Posts: 811
Loc: NC
I have a piece of commercial kitchen equipment that requires 2 120 volt circuits. Each pulls 1750 watts. Is there anything wrong with pulling 12/3 mc cable with a common neutral to this equipment, provided I put a double pole breaker on the circuit? Thanks...

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#193645 - 04/12/10 07:07 AM Re: Common neutral question [Re: sparkync]
Rewire Offline

Registered: 02/23/08
Posts: 167
Loc: Missouri
How is the connection made to the equipment?Unless the manufacturer says don't I see no NEC issue with the what you want to do.

#193648 - 04/12/10 08:35 AM Re: Common neutral question [Re: Rewire]
sparkync Offline

Registered: 10/17/02
Posts: 811
Loc: NC
The equipment plugs directly into a regular 120 volt outlet. They will both probably be used at the same time.

#193650 - 04/12/10 08:51 AM Re: Common neutral question [Re: sparkync]
EV607797 Offline

Registered: 10/25/06
Posts: 756
Loc: Fredericksburg, VA, USA
I see no problem at all. Even if only one of the items is used, the neutral will carry 100% of the load. If both are used, then the current will be equally divided among the hot legs with the neutral carrying any imbalance.

"But the guy at Home Depot said it would work."

#193709 - 04/14/10 08:23 PM Re: Common neutral question [Re: EV607797]
SJT Offline

Registered: 07/24/02
Posts: 242
I am not a big fan of common neutrals. If one circuit is overloaded for whatever reason, it also takes out the other circuit, being it's on a 2 pole breaker. I would stay with a neutral for each circuit, especially kitchen equipment.


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