Can the garbage disposal and dishwasher, each with its own GFCI receptacle, share the same 20 amp circuit at the main electrical panel?
Electrical Panel – Can Circuits for Dishwasher and Sink Disposal Unit Be Connected to Same Breaker?
electricalelectrical-panelwiring
Related Topic
- Electrical – Do I need two separate duplex receptacles for dishwasher (GFCI) and garbage disposal
- Code-Compliance – Can a 20A Kitchen Circuit Serve a Dishwasher? (California Code)
- Electrical – Can a dishwasher and disposer be on the same 20 ampere circuit
- Electrical – Dishwasher and disposal receptacle
- Electrical – piggyback off a hard-wired dishwasher circuit for a disposal
- Electrical – Proper Wiring for Dishwasher and Garbage Disposal in the Same Box
- Electrical – Wiring a Dishwasher and Garbage Disposal Together
Best Answer
This is kind of a tricky question. For many years contractors connected the disposal and dishwasher on a split receptacle below the sink. Now with newer and larger appliances consuming more power there could be a problem.
Also there has been some conversations in the AHJ and Code communities about NEC 400.12 (2) Uses not permitted - Where running through holes in walls ... Does it mean a fixed appliance electrical cords passing through a cabinet wall? Right now it's kind of up in the air and I'm betting there will be a code clarification coming up in newer revisions.
If you can perhaps the smarter move would be to extend the circuit from the disposal receptacle and install a separate receptacle behind the dishwasher. Or super safe install a separate circuit for each appliance.
One last thing, both now need to be on GFCI protected circuits.
So make sure your GFCI protected, verify the circuit can hold the total load (that includes the start up surge of motors) using the nameplate data of the appliances and take it from there.
Hope this helps.