Question about Cooper Wiring Devices Combination Switch & Receptacle

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My home was built in 1906 and there is only 1 white wire and 1 black wire in the existing outlet box. I am installilng a Combo Switch and Receptacle device and I'm able to get the switch to control the light, but the power receptacle is not working no matter how I connect it to the switch. Perhaps I'm doing something wrong. Please help!

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Receptacle needs 1 Hot wire and 1 Neutral wire to complete circuit.
It sounds like you have 1 Hot wire and 1 Load wire but no Neutral wire.

Neutrals are not always present in switch box.
As a general rule, if a switch box has Neutral wires, they are twisted together and covered with wire nut, and then pushed to back of box.

Every receptacle box has Hot and Neutral wire. Hot connects to brass screw, and Neutral connects to silver screw. The two wires together complete circuit when you plug in a lamp.

So each receptacle box has Neutral wires, and you can get a Neutral wire from receptacle box and bring it over to the switch box. This work takes every tool and probably touch-up paint.

Here is a link showing how to drop a wire down to your switch box:
You have to tear out old switch box, and then install 'old work box.'
Old switch box is nailed into 2x4s. Pry box out a bit, then reach in with hacksaw blade and cut nails.

Here are two more links that show basic 240V and 120V circuits:

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Posted on Jan 03, 2011


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I live in an old house and im changing a single switch to a switch and receptacle combo and i have wired it every way to sunday the light works but the receptacle either does not or it also turns on light ...

Open following link for specific wiring illustration and tips.

Single pole switch has 2 wires: These wires are Hot wire from breaker, and wire going to Load (light).

Combo device needs additional neutral wire.
Without a neutral wire, the combo outlet will not work.
Neutral wire connects to silver-colored screw. Neutral wires are the white wires that are twisted together and covered with wire nut and pushed to back of electric box.

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1 Answer

Hello: I have a Levitron White decora 15 amp combination switch: I need to get a copy of the schematics as someone threw the schematics away... Geesh! Note The MFG part number is the same as the...

There is no schematic shown online for that specific product.
Leviton shows a spec sheet on their website but no wiring schematic.

However the spec sheet does show the screw terminals on one side of device that indicate this is ordinary combo switch-outlet.

Open following link for illustration of combo switch-outlet:
The problem that usually confronts people when they replace light switch with combo is that the combo requires additional neutral wire to power the outlet.
Neutral wires are the white wires twisted together and covered with wire nut that are pushed to back of electric box. Connect a short piece of white wire to the neutrals, and connect that wire to screw on combo device. If your electrical box does not have these neutral wires, you can get the outlet to work by using bare ground wire instead of white neutral, but I would never recommend this action as it violates national electric code and would not pass home inspection and would cause risk to electrician working on that same circuit who was unaware of a code violation.

Jul 23, 2011 | Leviton White Decora Rocker Switch &...

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My out let has 2 black wires and 2 white wires and no ground. The out that I purchased has 2 black wires on the back I know where the white and black. Wires. Go from the wall. .**** what do I do with....

You purchased a GFCI outlet.
You posted under GFCI combo switch and receptacle.
If you have different device, then add a comment.

On back of device are markings that show Line and Load.
These markings are associated with screws on device.
Black Hot wire connects to Brass-colored Line screw.
White Neutral wire connects to silver screw located opposite Line screw.
If you don't know which wires are Hot and Neutral, the testing steps are shown at bottom.

Your other two wires evidently go to a light, fan, or motor that is operated by the switch.
This is where the two wires that stick out of GFCI device are used.
Your Black Load wire connects to one wire, and your White Load wire connects to other wire.

Finally there are 2 screws left on GFCI device.
These screws are used if the Hot and Neutral wires go forward to another switch or receptacle box. This would require another Black and White wire in the box, and all devices from the GFCI forward would be protected by the GFCI.
As you know, the way electric circuits work is a Black Hot and White Neutral leave the circuit breaker box and travel to a junction box. From the junction box, the Black Hot and White Neutral travel to the next box, and then the next box, and so on until the last box is reached. Each box contains a switch or plug or combo device or a light fixture. In your case, the Black Hot and White Neutral may not send power forward to another box, and may just be a switch box that has a single wire to the light fixture, and that is the end of the circuit.

How to test for Hot and Neutral wires:
Separate your 4 insulated wires.
Turn power ON.
Test each wire to bare ground wire.
Tester will light up on Hot wire.
Now Hot is Identified.
Test Hot wire to each other wire in box, except bare ground.
Tester lights up on Neutral wire.

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1 Answer

Cooper Industries Cooper Wiring 274W Switch and Outlet I need help installing this switch/outlet combo...I have 3 wires...a black, a red, & a copper. I hooked the copper to the green terminal, the...

Switch-plug combo:
bare ground goes to green screw
dark screw goes to hot from breaker
silver screw to neutral
brass screw goes to load (light)

Add a comment any time
You are replacing single pole light switch?
Single pole switch has 3 wires: black and red and bare copper

New device has 4 different colored screws: green, dark, brass, silver
Bare copper goes to green screw.
Black wire goes to dark screw
Red wire to brass screw
Nothing on silver screw for a moment. Test circuit and make sure light turns on-off.
If lights works, then good so far.

Now let look at silver screw. Neutral wire has to connect to silver screw.
In back of your electrical box are white wires twisted together and covered with wire nut.
These are neutral wires.
You must connect another short piece of insulated wire to these neutral wires and run that wire to silver screw.
The neutral wire will complete circuit to receptacle.
If you do not have neutral wire, then receptacle will not work in that box without additional wiring.

Hook up neutral wire to silver screw.
Now turn on power and click switch again.
If circuit breaker trips, then reverse your red and black wires.
Otherwise this should be correct wiring.

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1 Answer

I to want replace a regular duplex outlet with a TM818-WCC6 and want just the outlet switched. How do I wire it?

The Pass and Seymour plug-switch combo has 3 screws
There is a dark screw on one side .... the black Hot wire from breaker box connects here

There are silver and brass colored screws on other side of device

The white Neutral from breaker box connects to silver screw connects here >>> this will give power to your receptacle
The black wire going to Load (light, fan, motor that you want switch to control) connects to brass colored screw ... the switch controls power to Load

How to test for black Hot
Remove devices and separate wires
Turn on power
Test each wire to bare copper wire
Tester lights up on black Hot wire
How to test for white Neutral
Test black Hot to each white wire
Tester lights up on Neutral

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1 Answer

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1 Answer

I need a wiring schematic. The recept works but the light does not.

You probably don't have usable power in the box. If the two wires going to the switch side of the combo unit are white and black then the power is up at the light and not in the box. If the two wires are black on the combo switch then you are in luck. Remove both wires and test to see which black wire is hot. From the hot wire add two short black wires, and cover with a wire nut, one of these wires will go to the switch and the other will will be connected to the to the narrow socket side of the receptalce. There will be a set of white wires connected together. Take off the wire nut and add a short piece of white wire that will run to the wide socket side of the receptacle. You now should have power to the outlet and the switch working.

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How to wire combo switch

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