20 amp wires into 15 amp outlet

Question

I'm replacing a hall way outlet that only runs the hall light. I have the 15 amp outlet and the wires coming out of wall are too big to fit in holes. Guessing 20 amp? Is it ok to just wrap them around screws instead? thanks

Answer 1

That's exactly what you're supposed to do. The back stab terminals on receptacles are designed only to accept #14 wire, and typically are labeled as such.

If you're using #12 wire, you'll have to use the screw terminals. Keep in mind, however, that you can only connect one wire per screw terminal.

Answer 2

”15A” outlets refers to them being shaped to only accept '.' NEMA 5-15 plugs, not the -.' NEMA 5-20 plugs. They are code legal in 20A circuits. This does not make it ok to cheat a 20A device into a 15A plug, because the plug pins may not be rated for 20A.

If it bothers you, it's legal to change the breaker to 15A or fit 5-20 outlets. Be glad you have 12ga wire throughout. 14ga is for the birds, I do not use it.

If you like safety, use screw terminals. Poke holes (often called backstabs) are designed merely to save $$$ in installation time. The mechanism which grabs the wire may seem magical, but bust an outlet apart and you will be appalled at how chintzy it is. Remember these outlets wholesale for 38 cents.

If doing 4 screw terminals per outlet in awkward positions doesn't sound like fun, google "pigtailing". Makes things easy, you can do the pigtails at an ergonomically suitable workbench.

Also wrap the outlet (top, bottom and both sides) with a couple loops of electrical tape to cover the screws.

When you're the homeowner, you have the time to do it well. Also it impresses inspectors.