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How To Install a Switched Outlet

This article explains how to install a switched outlet, where the top outlet is switched, and the bottom outlet is always hot.   Wiring a switched outlet is easily accomplished when the right steps are followed.


Q: I would like to install ‘switched outlets’ in two rooms of a new addition to my cottage/summer home; top switched, bottom always hot.

I’m not sure of the best way to do this.

Do I have to duplicate all the runs to the switched outlets?  Could I use a 12/3 or 14/3 wire and share the neutral?

Please let me know. Any diagrams or sketches would be helpful.

- Dave


A:
The easiest way to install a switched outlet is to run the power feed into the switch first, then a 3-wire from the switch to the first receptacle, and on to any other receptacles that you want on this circuit.

The 3-wire allows you to interrupt the power with the switch on one of the hot wires, and have unswitched power for the other half of the receptacle on the other hot wire.

We usually switch the red wire, and keep the black wire as unswitched hot.

The neutral conductor is common to both sides of the receptacle.  The term “shared neutral” is usually reserved for a 3-wire circuit where the two hot wires come from opposite sides of the panel (240V between them from a 2-pole breaker) and the neutral then will only carry the unbalanced load.

Don’t forget to split the hot (brass terminals) side of the receptacle when installing them, and your switched outlet will work great!

- Terry Peterman, the Internet Electrician

This entry was posted in Receptacles and tagged , , , , , . Bookmark the permalink.
  • David Robinson

    I need to wire a recepacle and switch in a double box. what is the proper wiring arrangement.

  • mvr3

    We had a power outage and there was a room that needed new outlets because the old ones were worn out. So I felt it was the best time to do this. After changing the outlets and the power came back on, I went around checking the outlets to make sure they were all working. There was one that had 3 hot (black wires) and 3 neutral (white) and the grounds. I checked the outlet out and the upper half was good, when I checked the lower half it showed a open neutral. This is a older building and commercial, can you give a idea what to look for.

 

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"If you're looking for a good reference to help you understand simple home wiring, I personally recommend 'The Basics of Household Wiring' DVD".

Terry Peterman, the Internet Electrician
 
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