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#79709 - 01/13/02 02:04 PM Appliance cords
Electricmanscott Offline

Registered: 01/12/02
Posts: 1478
Loc: Holden, MA USA
Can anyone tell me where to find code info on sizing appliance cords? I can not seem to find anything regarding dishwashers in particular. Seems most electrical appliances come with cords rated for less than a 15 or 20 amp circuit. I would like a definitive answer on installing a cord on a dishwasher. Thanks....Scott

2014 / 2011 NEC & Related Books and Study Guides
#79710 - 01/13/02 07:34 PM Re: Appliance cords
Elzappr Offline

Registered: 12/20/01
Posts: 273
Loc: Oregon
Some of the info can be found in 422-16(b)(2). Length 3' to 4' from grounding type plug on cord to rear of appliance.
Then check out 240-4 for wire size and OC protection relative to what the nameplate of your dishwasher says. Probably SP type cord (table 400-4) 14 or 12 AWG. You really need to check out the local code because this is a subject frequently visited and amended by state and local authorities.

#79711 - 01/14/02 01:57 PM Re: Appliance cords
Tom Offline

Registered: 01/01/01
Posts: 1069
Loc: Shinnston, WV USA
In general, ampacities of most common types of flexible cord can be found in Table 400-5(A) You can usually use Column B, but check out the small print at the bottom of the table.

Here's an example, 2 burner hot plate draws 20 amps, needs to be on a 30 amp breaker since it will be on all day. Branch circuit conductors are #10, but the cord only needs to be a maximum of #12.
Few things are harder to put up with than the annoyance of a good example.


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