Question about Cooper Wiring Devices ACE AC-DC COMBINATION SWITCH 10A-125V/250 VAC switch

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I want to change . alight switch ito a combination switch. outlet and light but thiers only two wires runin to light switch

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You only have two wires, because it is wired for a switch leg. You only have the incoming hot and outgoing hot to the light. You need a neutral and grounding conductors also. If you're putting this in a bathroom, it should be a GFCI receptacle. You will have to add another wire, or just add another box in the wall.

Posted on Aug 02, 2010


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1 Answer

Cooper tr274v wiring diagram

Are you installing a combination switch-outlet?
What are you replacing? A switch? Is switch single pole or 3-way?
Or are you replacing outlet.
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Oct 02, 2013 | Electrical Supplies

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I am trying to hook up alight switch from a wall switch

You are adding another switch?
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Replacing a switch outlet combination with a switch GFCI outlet combination and there is only one cable in the box (14/3)

If it worked before, it should be a wire to wire replacement. You are replacing a regular switch/outlet with another switch/outlet which just happens to be a GFI outlet.
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Sep 25, 2017 | Cooper Industries Electrical Supplies

1 Answer

I'm wanting to install a combination outlet/switch device. Both will work off the same circuit but be independent of each other. I want the light to work from the switch, with the outlet constantly hot. ...

How many sets of wires are coming into the box?
If the box is in the middle of the circuit you will have a power-source black & white wire coming in and a power-source black & white wire going out. And in this case for the switch - there must be a black and a white wire going to a light.

Typically with a switch/outlet combination all the white wires will splice together with a white pig-tail wire to feed the neutral side of the device. The two black wires from the power-source will splice together with a black pig-tail and feed the hot-side of the device. The black wire going to the light will go on one side of the switch.

Looking at outlet/switch device from the front the large slot side of the outlet will be the neutral side and the smaller outlet slot will be the hot side. The neutral side screws will be steel colored and the hot side screws will be brass colored. The white wires will go to the neutral side steel colored screws, and the black wires will go on the hot side brass colored screws on the outlet.

The black wire comig into the box from the light is called a switchleg and goes to a brass screw on one side of the switch. The brass screw on the otherside of the switch will be for the black wire coming from the power-source.

Hope this helps - and please:


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first you must know which wires are hot from the breaker box and witch ones go to the device you are switching--lets call it a light bulb. The hot wires coming from the breaker should go where it says "LINE" black one on the "HOT" side and white one on the "White" side. One of the black wires hanging out of the switch should go on the "LOAD" "HOT" side of the switch, then attach the other hanging black wire to the black wire going to the light with a wire nut. Your white wire going to the light must go on the "LOAD" "WHITE" side or it just won't work.

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