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Joined: Oct 2002
Posts: 3
OP
Junior Member
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Is it leagle to tap the microwave onto one leg of a 4 wire 40 amp range home run? The contractor stated 210-19 (c) ex 1 . that it was a cooking unit. The microwave is a 120v unit on a 15 amp rated receptacle.
Any info would be great thanks all Scott Badger
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Joined: Jun 2002
Posts: 186
Member
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what about ocp for the microwave unit ? a 15 unit on a 40 amp circuit? 210-19 (3) this practice is permitted... some electricians use that exception, some dont. take care...
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Joined: Jan 2002
Posts: 163
Member
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Is this worked on a permit? Ask the inspector his take on this 'exception'. Most inspectors consider a microwave an appliance and do not allow this exception - microwaves are cord and plug connected and therefore this receptacle could eventually serve other appliances. This 'exception' is a Tap rule...does not apply to receptacles[microwaves are not hardwired]; further your microwave is rated less than 20A. I'd say this is bogus and refuse the installation.
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Joined: Oct 2002
Posts: 3
OP
Junior Member
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I found out that the microwave was taped into the range feed when I turned off the ranger to make the damn thing stop beeping.(It was the dishwasher that beeped all day lol) MY dad had a good time with that. It make for a fun thanksgiving.
Anways this is a new house. I don't think I will have a problem getting the contractor to fix this. He said he runs a 20A home run to the disposal. That would be a good place to pick up my power for the microwave. I just wanted to get some feed back from others in the industry.
Thanks again Scott Badger
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Joined: Apr 2002
Posts: 2,527
Moderator
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Under NEC tap rules, could you use a fuseholder receptacle for the microwave oven, if it was furnished with an integral cord? For example, consider something like a Buss "SRU" described at http://www.bussmann.com/library/bifs/1129.pdf
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Joined: Dec 2000
Posts: 4,294
Member
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Provided there's no range on the circuit Why not just replace the circuit breaker with a 20 amp back at the panel? Too easy.
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Joined: Oct 2002
Posts: 210
Member
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I have seem some wall ovens that come with a recptacle in the back to plug the microwave into.
I would not consider the type of tap you are talking about. Run the 12/2 homerun. Many microwaves call for a decicated 20 amp ciruit. Manufacturers specs supersed the code book.
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Tom
Shinnston, WV USA
Posts: 1,044
Joined: January 2001
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