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GFCI garbage disposal? #46267 12/17/04 08:46 PM
Joined: Feb 2004
Posts: 133
E
Electric Ian Offline OP
Member
Do you typically install a GFCI for a garbage disposal receptacle?

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Re: GFCI garbage disposal? #46268 12/17/04 08:55 PM
Joined: Dec 2004
Posts: 27
N
Northbayec Offline
Member
Normally you don't GFCI protect fixed appliances. Roof De-ice being an exception. Just to let you know I have had inspectors make me install a single receptacle for the disposal so nothing else can be plugged in down there.

Re: GFCI garbage disposal? #46269 12/17/04 08:55 PM
Joined: May 2004
Posts: 697
D
Dave55 Offline
Member
I typically wire directly to them without a cord and plug, or receptacle.

Dave

Re: GFCI garbage disposal? #46270 12/17/04 09:52 PM
Joined: Sep 2004
Posts: 138
R
royta Offline
Member
There is a single recep, under the kitchen sink in our home, that is fed by a 15A multi-wire circuit. One half of the recep is switched, and supplies the disposer. The other recep supplies the dishwasher. Of course the recep is supplied by a 2-pole breaker.

Northbayec - I read 210.8(A)(3)Exception and the NEC Handbook commentary in 426.28. The second to last paragraph in the commentary says, "It is important to understand that this required equipment protection is not the same as a ground-fault circuit interrupter used for personal protection that trips at 5 milliampteres (+/-1 milliampere)." Is the equipment the NEC is not referring to, the standard GFCI receps referred to in 210.8?

Re: GFCI garbage disposal? #46271 12/18/04 12:04 AM
Joined: Oct 2004
Posts: 17
F
FWW56 Offline
Member
No GFCI for disposals around here (western Pa), countertop recpts only in the kitchen.

Typically hard wired as are the dishwashers. The exception being tract houses which we install a switched standard duplex 15amp recpt on it's own 20a circuit in the sink base for the disposal. Another one unswitched on the wall behind the dishwasher also on it's own 20a circuit. No GFCI in either case.

Frank

Re: GFCI garbage disposal? #46272 12/18/04 04:46 AM
Joined: Oct 2000
Posts: 2,749
Joe Tedesco Offline
Member
Question:

Do you have to install a wall switch for the dishwasher in a one family dwelling if it is hard wired?

PS: The term "kitchen waste disposers" is used in the NEC because some people thought that all "garbage" was to be put into the sink!
[Linked Image]


Joe Tedesco, NEC Consultant
Re: GFCI garbage disposal? #46273 12/18/04 06:30 AM
Joined: Jan 2003
Posts: 4,391
I
iwire Offline
Moderator
Quote
Do you have to install a wall switch for the dishwasher in a one family dwelling if it is hard wired?

No. [Linked Image]

Does the dishwasher have a switch 'marked off'?

Is the electric panel in sight?

Bob


Bob Badger
Construction & Maintenance Electrician
Massachusetts
Re: GFCI garbage disposal? #46274 12/18/04 06:37 AM
Joined: Jan 2003
Posts: 4,391
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iwire Offline
Moderator
Electric Ian

Quote
Do you typically install a GFCI for a garbage disposal receptacle?

Are you asking if it is required?

Depends, commercial kitchen or dwelling unit kitchen?

In a dwelling unit kitchen only 15 and 20 amp receptacles that serve counter tops must be GFCI protected.

So a disposal outlet under the counter is not required to be GFCI protected.

In a commercial kitchen if you did have a cord connected disposal connected to any 15 or 20 amp 120 volt receptacles it would be required to be GFCI protected.

ALL 15 & 20 amp 120 volt receptacles in commercial kitchens must have GFCI protections...no exceptions.

Bob


Bob Badger
Construction & Maintenance Electrician
Massachusetts
Re: GFCI garbage disposal? #46275 12/18/04 07:26 AM
Joined: May 2004
Posts: 81
V
velect Offline
Member
My local inspector requires breaker lockouts on hardwired dishwashers. Also on harwired built-in ovens, cooktops and saunas

Re: GFCI garbage disposal? #46276 12/18/04 10:13 AM
Joined: Feb 2004
Posts: 133
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Electric Ian Offline OP
Member
iwire
No, I know it is not required but I was wondering if any of you guys typically install one. What sparked my curiousity on this subject was an online installation manual for a particular brand disposal (forget which one off hand) that "recommended" connection to a GFCI receptacle. I thought, hmm, that's interesting cause I've never done so and was just wondering if others do. Keep in mind the manufacturer usd the term "recommend" not "required".

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