new GFI, 15 amp on 20 amp circuit?

Old 05-04-08, 09:20 AM
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new GFI, 15 amp on 20 amp circuit?

I'm bought a 15 amp GFI outlet for my kitchen that doesn't currently have one. The home was built in the late 70s, and I believe it's the original wiring.

I took the old outlet out, and noticed that the wiring is a heavier gauge than 14. I thought that was odd for a regular outlet, and when I looked at the amp rating on the old outlet, it said 15, so I didn't think much about it.

When I went to shut the breaker off, it's a 20 amp breaker, and I was expecting a 15.

Should I be putting a 20 amp GFI outlet there now, and the original one was not correct? I thought 20 amp outlets have that extra horizontal slot on them, and I've never seen that in a kitchen before.

Can anyone clue me in? Thanks.
Old 05-04-08, 10:04 AM
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The 15 amp GFI is fine.

If there is more than 1 physical spot to insert a plug on the circuit 15-amp devices are fine on 20-amp circuits.

The difference between a 15 amp and a 20 amp receptacle is the slot configuration.
Old 05-04-08, 11:28 AM
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To add: Kitchen countertop circuits must be 20 ampere. This requirement has been in place for many years.
Old 05-04-08, 04:32 PM
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Post your location. If you are in Canada the rules are different.
Old 05-05-08, 12:46 PM
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Cool, thanks for the info. I'm in the us, Phoenix area.

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