Electrical – Can one of the (two or more) required 20A circuits for kitchen receptacles also serve a Dishwasher? (California Code)

code-complianceelectricalkitchens

Does the California Electrical Code allow one of the two required 20A circuits powering the wall / floor receptacles to also power a dishwasher?

Bonus question: If not, and the dishwasher requires its own circuit, may that circuit also power the gargabe disposal?

Please cite code sections if you can. My hunch is that the answer is 'no', based on this:

210.52 B.1

In the kitchen, pantry, breakfast room, dining room, or similar area of a dwelling unit,
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.

and

210.52 B.2

No Other Outlets. The two or more small-appliance branch
circuits specified in 210.52(B)(1) shall have no other outlets.
Exception No. 1: A receptacle installed solely for the electrical supply to and support of an electrical clock in any of
the rooms specified in 210.52(B)(1).
Exception No. 2: Receptacles installed to provide power for
supplemental equipment and lighting on gas-fired ranges,
ovens, or counter-mounted cooking units.

thanks

tom

Best Answer

Update

Technically the two minimum kitchen, pantry, dining room, breakfast room, or similar area, small appliance branch circuit only applies to outlets served on the walls, counter-tops, and/or floor outlets if they are within 18" of a wall. All other appliances, with the exception of refrigerators, that are fastened in place, CANNOT be included on the two minimum small appliance circuits. They MUST be on their own appliance circuit.

Still though, you may be able to combine and share the dishwasher and disposal on one dedicated circuit if the following conditions are met.

  • The disposal is under 1HP
  • The dishwasher is fastened in place.
  • Lighting loads are not shared with the dishwasher/disposal.
  • The manufacturer does not call for a dedicated circuit.

References

NEC 2014

210.23 Permissible Loads, Multiple-Outlet Branch Circuits

(A) (2) Utilization Equipment Fastened in Place. The total rating of utilization equipment fastened in place, other than luminaires, shall not exceed 50 percent of the branch-circuit ampere rating where lighting units, cord-and-plug-connected utilization equipment not fastened in place, or both, are also supplied.

430.53 Several Motors or Loads on One Branch Circuit

Two or more motors or one or more motors and other loads shall be permitted to be connected to the same branch circuit under conditions specified in 430.53( D) and in 430.53( A), (B), or (C). The branch-circuit protective device shall be fuses or inverse time circuit breakers.

(A) Not Over 1 Horsepower. Several motors, each not exceeding 1 hp in rating, shall be permitted on a nominal 120-volt branch circuit protected at not over 20 amperes or a branch circuit of 1000 volts, nominal, or less, protected at not over 15 amperes, if all of the following conditions are met:

  1. The full-load rating of each motor does not exceed 6 amperes.

  2. The rating of the branch-circuit short-circuit and ground-fault protective device marked on any of the controllers is not exceeded.

  3. Individual overload protection conforms to 430.32.

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