Doing a small kitchen renovation and don't have much residential experience. My question relates to 2020 NEC Section 210.52(B)(1) Exception 2. Specifically, can I feed the dishwasher circuit and the refrigerator circuit from one of the two small appliance branch circuits (one specific appliance from each circuit) and fall under the exception listed earlier? Or do I need to supply these specific appliances from their own individual circuit? Are there other considerations I am missing? Planning on feeding both circuits with AFCI/GFCI combo breakers at the main panel.
Specific Appliance Question
- Thread starter csoc64
- Start date
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- Occupation
- Licensed Electrician
Fridge can be on one of the circuits supplying the countertop recpts, the dishwasher can not.
What about 210.52(B)(1) Exception 2. "In addition to the required receptacles specified by 210.52, a receptacle outlet to serve a specific appliance shall be permitted to be supplied from an individual branch circuit rated 15 amperes or greater." I assumed that this is how the fridge is allowed.
chrismarcellino
Member
- Location
- Minnesota
- Occupation
- ee
"210.52(B)(1) ...the two or more 20-ampere small-appliance branch circuits required by 210.11(C)(1) shall serve all wall and floor receptacle outlets covered by 210.52(A), all countertop outlets covered by 210.52(C) and receptacle outlets for refrigeration equipment."
The dishwasher and a disposal can share a circuit unless the nameplate amperages combined exceed the OCPD , or manufacturer requires an individual circuit, which is not uncommon especially for the mega disposals and many dishwashers (though some allow sharing on 20 amp circuits) --110.3(B), 210.19(A)(1) and (2).
Don't forget the GFCI (and AFCIs) protection must be readily accessible so usually best as a breaker when under the sink unless your AHJ is unusually lenient (and cheaper anyhow since you need AFCI). This circuit cannot be on the SABC as mentioned above, and cannot be shared with other outlets/receptacles else you will hit the 210.23(A)(2) limitation and be limited to 50% if there are non-fastened in place appliances that can use the receptacle (ignore if not plug-and-cord connected or receptacle under the sink, etc..)
The dishwasher and a disposal can share a circuit unless the nameplate amperages combined exceed the OCPD , or manufacturer requires an individual circuit, which is not uncommon especially for the mega disposals and many dishwashers (though some allow sharing on 20 amp circuits) --110.3(B), 210.19(A)(1) and (2).
Don't forget the GFCI (and AFCIs) protection must be readily accessible so usually best as a breaker when under the sink unless your AHJ is unusually lenient (and cheaper anyhow since you need AFCI). This circuit cannot be on the SABC as mentioned above, and cannot be shared with other outlets/receptacles else you will hit the 210.23(A)(2) limitation and be limited to 50% if there are non-fastened in place appliances that can use the receptacle (ignore if not plug-and-cord connected or receptacle under the sink, etc..)
mwm1752
Senior Member
- Location
- Aspen, Colo
There are some refrigerators that do require an individual circuit -- you can't predict what an owner will install on smaller jobs but custom residences may have a spec for you. Even though the NEC allows refrigeration ( which wiring method may be passed @ rough in) it also requires manufacture instruction to be followed so most restrictive could into play at final inspection. 210,23 would address combination dish/disposal loads but most likely at final not rough in.
kwired
Electron manager
- Location
- NE Nebraska
- Occupation
- EC
Fridge has it's own permission to be supplied by a 15 amp "individual branch circuit" need to look to tell you exactly where but should be in 210.52 somewhere I believe. Keep in mind this is talking about receptacles in addition to those required by 210.52, and would need to be individual circuit supplying individual appliance when utilizing this exception.
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