Kitchen rope lighting on same circuit as dishwasher or disposer?

boyler99May 8, 2011


I am considering installing "rope lighting" along the toe-kick area in my kitchen. I know that I cannot use either of the small appliance circuits for this lighting, but I am wondering if it is permissible to use either the dishwasher circuit (20 amp) or the disposer circuit (also 20 amp)? Neither installation manual for my disposer (InSinkErator) nor dishwasher reference a dedicated circuit being required, and I would be well under 80% of the load of either circuit with this short section of lighting. If this is permissible under the NEC, does the rope lighting need to be on an AFCI breaker? My understanding is that kitchen lighting is still exempt from AFCI but I'm not sure if toe-kick lighting is included in this definition. I am under the 2008 NEC, by the way.

Thanks for the insight.

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It is very unlikely you will have a problem using either circuit.

In many places a single 20 amp (and sometimes just a 15 amp) is used for the GD and GD.

Neither are very large loads, but you can check their nameplate ratings.

    Bookmark   May 8, 2011 at 2:30PM
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Per NEC 210.23(A)(2) You cannot add lighting to either appliance circuit if the rating of total utilization equipment fastened in place is greater than 50% of the circuit rating. That will probably rule out the 20A dishwasher circuit if typical @12A rating. But the disposal should be rated well less than 10+ amps. If so, then put the lighting on the 20A disposal circuit.

    Bookmark   May 9, 2011 at 5:25AM
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you can check the DW, bot not very many pull 10 amps (50% of a 20 amp circuit).

The lighting does not count towards the 50% limit.

    Bookmark   May 9, 2011 at 7:59PM
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Thanks guys, this is very helpful. I think I'll tap off the disposal circuit. Appreciate the assistance.

    Bookmark   May 16, 2011 at 1:20PM
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