NEC 210.19(A)(3)Exception No. 1

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dpenbert

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I am designing branch circuits for a 208/120V double oven and a 120V warming drawer(installed below the double oven). The electrical requirements for the double oven are to be equipped with a 4-wire,#10 ground, fused separately, and a 40amp connection. The electrical requirements for the warming drawer are to be hard-wire direct separate 15 amp minimum 2-wire with ground. Based on NEC article 210.19(A)(3)Exception No. 1, would it be compliant to use a 50A/2P breaker, (3)#8 w/ (1)#10ground to feed the double oven and the warming drawer from the same circuits(2-pole) and tap the appropriate conductors to feed the other? The electrical requirements per manufacturer specs state that each appliance should be fed from separate circuits. Could someone help me to understand what to do in this situation?

Thanks,

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David - St. Louis
 
Re: NEC 210.19(A)(3)Exception No. 1

David,

The NEC states that you follow the manf. spec's, Your first line of thinking is on the correct track.
 
Re: NEC 210.19(A)(3)Exception No. 1

You have mentioned 208 voltage. That voltage is for 3 phase systems, which is unusual for dwellings. The section number you have mentioned is a requirement for "household Ranges and Cooking Appliances"

Is this a dwelling installation?
 
Re: NEC 210.19(A)(3)Exception No. 1

Yes, we are building a condominium high-rise and 208V 1-ph is what each unit will get. Thus, this will be a dwelling installation.

Sorry for the delay, I was out for the holiday.

Thanks,

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David - St. Louis
 
Re: NEC 210.19(A)(3)Exception No. 1

Frank's answer is the correct one.

(Edited for lazy fingers)

[ November 28, 2005, 10:41 AM: Message edited by: LarryFine ]
 
Re: NEC 210.19(A)(3)Exception No. 1

The exception you are citing speaks of ranges, ovens, and counter mounted cooking units. I don't think your warming drawer fits into any of these three categories. I agree with Frank and Larry: you need separate circuits.
 
Re: NEC 210.19(A)(3)Exception No. 1

Originally posted by benaround:
The NEC states that you follow the manf. spec's, Your first line of thinking is on the correct track.
Click to expand...
Where does the NEC state this? I received a response back from a PE as follows:
The Code does not require separate circuits based on manufacturers installation instructions. The intent of manufacturers is to insure that cooking equipment is served by separate circuits from required kitchen countertop and/or resident lighting circuits.
Click to expand...
As long as the taps are not longer than necessary for servicing the appliance then this exception can be applied according to the PE I consulted with. Most units that I am designing for have the warming drawer cut-in directly below the double oven and some are mounted just directly below the countertop. Any thoughts?

Thanks,
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David - St. Louis

[ December 01, 2005, 12:17 PM: Message edited by: dpenbert ]
 
Re: NEC 210.19(A)(3)Exception No. 1

Originally posted by charlie b
The exception you are citing speaks of ranges, ovens, and counter mounted cooking units. I don't think your warming drawer fits into any of these three categories. I agree with Frank and Larry: you need separate circuits.
Click to expand...
The warming drawers are wall/cabinet mounted and I'm not sure if this particular appliance fits under the description of the exception either. The PE I am consulting with interpreted the exception to apply to the warming drawer appliance. Any more thoughts on this as well?

Thanks,
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David - St. Louis
 
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