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Doug Crf 04-27-2006 01:36 AM

Useing 20A receptical in place of a 15a
I went to lowes and picked up the wrong recepticals.
would it be ok to use these or no.

Speedy Petey 04-27-2006 05:54 AM

If the whole circuit is wired with #12, and is protected by a 20 amp breaker, then they are fine.

frenchelectrican 04-27-2006 06:13 PM

i will ditto with speedy pete about the 20 amp devices as long it is on 20 amp circuit with 12 gauge wires it will be just fine with it

just make sure in certiain area you have to run gfci [ bathroom, garage, unfinshed basement and of course outdoor repectailes] so just let you know in ahead of the time to advoid any extra headaches

Merci, Marc

MinConst 04-27-2006 08:18 PM

Hey sparkys,
I don't understand and would like to.
We have a 15 Amp breaker and a 20 amp duplex. Why would the duplex make any difference? I'm not disagreeing but want to understand.

Speedy Petey 04-27-2006 08:36 PM

Min, it really is just semantics, but the possibility is there.
The problem is you have the potential to plug in a single item that is over 15 amps. Such as a power tool or large room A/C.
Why I say it is semantics is because what is the difference between that and plugging in two smaller loads that equal over 15 amps? Not much, but the chance that a single item with a 20 amp plug will trip a 15 amp breaker on a regular basis is pretty good.

The opposite is the basis of the code about using multiple 15 amp receptacles on a 20 amp circuit.
First of all there is almost nothing in a home that will have a 20 amp plug configuration, 'cept maybe that A/C or power tool.
The though is that if an appliance has a 15 amp plug it will not draw over 15 amps, but more than one item will. So code lets us us multiple 15 amp receptacles on 20 amp circuits. One of the 15 amp receptacles will not overload since the plug is only 15 amp.

MinConst 04-28-2006 05:47 PM

I see what you are talking about. But what about the 20 amp duplex outlets that take a standard plug configuration. I see 20 amp GFCIs that have the same plug style as a 15.
I wasn't thinking of the 20 amp plug configuration. I can understand the 20 amp plug configuration being a totally different animal.
Thanks for the explanation.

Speedy Petey 04-28-2006 06:52 PM

GFIs are different. A 15 amp GFI has a 20 amp feed through and it is noted right on it. The prong configuration is still 15 amp.

Actually regular receptacles are no differnent other than they do not specifically state 20 amp feed through, yet they are.

A 20 amp receptacle has a "T" slot for the neutral prong. If it has the standard two vertical slots plus ground it is a 15 amp device.

MinConst 04-28-2006 08:23 PM

Ahh now I understand fully. Scary :cool:

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