NEC code guidance
#1
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NEC code guidance
I am in the planning stage for a complete kitchen reno and need some guidance understanding the electric code requirements. Note that I am not a licensed electrician, but I am an experienced DIYer who has upgraded a meter socket and service panel as well as wired several bathrooms. I research extensively prior to beginning work and permit jobs as required to ensure NEC 2017 compliance.
I have 11 breaker spaces available in my 30 space, 200 amp service panel. Based on my current understanding of code requirements, it is going to be a tight fit. The ideal configuration would require 1 more slot than I have available:
There are a few possible solutions in order of preference.
Guidance is appreciated!
I have 11 breaker spaces available in my 30 space, 200 amp service panel. Based on my current understanding of code requirements, it is going to be a tight fit. The ideal configuration would require 1 more slot than I have available:
- microwave
- range hood
- garbage disposal
- dishwasher
- refrigerator
- receptacle circuit #1
- receptacle circuit #2
- overhead lights
- cooktop (pole 1)
- cooktop (pole 2)
- double wall oven (pole 1)
- double wall oven (pole 2)
There are a few possible solutions in order of preference.
- Option A: If I understand 220.55 correctly, the cooktop (9.6 kW) and wall oven (7.4 kW) can be on the same circuit.
- Option B: If code allows it I could combine some existing circuits to make more room. I currently have 2 circuits for outdoor outlets. The garage and unfinished basement are also separate.
- Option C: Install a combination range rather separate oven and cooktop units. My wife would prefer separate units and a double oven.
- Option D: I could install tandem breakers for existing non AFCI circuits, but this is a temporary solution.
- Option E: Last resort would be to upgrade to a larger panel. I just installed the panel last year, and more than 30 spaces seems like overkill for a house the size of mine.
Guidance is appreciated!
#2
The microwave and refrigerator are permitted on the 20 amp small appliance branch circuits . An over the range microwave would call for a dedicated circuit . The range hood can be on the lighting circuit unless it is a plug in unit.
#3
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As you found out a panel fills quickly if you are doing any significant wiring. Since you don't like tandems you won't be happy with a panel that is close to full.
Option F: Add a sub-panel
Option F: Add a sub-panel
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Thank you all. Putting the refrigerator and microwave on the small appliance circuits and combining the disposal/dishwasher postpone the problem for now. The hood does have a plug and requires a dedicated circuit. Sounds like a subpanel may be needed in the future.