over-the-range microwave

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07-05-10, 06:07 AM

nugentcn

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over-the-range microwave

I had always planned for a 20 amp dedicated circuit for my over-the-range microwave. The manufacturer's instructions say to put it on a 15 amp dedicated circuit, though. 14 gauge wire is certainly cheaper and easier to work with. Is there any disadvantage to not putting it on a 20 amp if it's not required? Are most microwaves moving this direction so that if someone wanted to replace it down the road they would be sufficiently covered with 15 amps?

Thanks for your opinions!

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07-05-10, 06:20 AM

pcboss

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There is no problem with running the larger wiring and it gives you greater options should you decide to change the unit later.

07-06-10, 09:28 AM

ibpooks

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Many jurisdictions require that the OTR circuit be 20A, so I would install the #12 with a 15A breaker. This allows an easy upgrade to 20A when you eventually replace this microwave.

07-06-10, 03:55 PM

french277V

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I will just run 4.0mm² twinner { 12-2 NM } with 15 amp breaker you will be fine and by time if you want more serious powerfull mircowave hood it is ready for ya and you don't have to do that twice.

Merci.
Marc