Question about Cooper Industries Cooper Wiring 274W Switch and Outlet

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I can't figure out how to wire my cooper wiring combo switch/receptacle. I have a white, black and copper wire coming in. One terminal on the receptacle side is clearly marked white/blanco, the two terminals in the middle I figured was common and then another lone terminal at the top. I hooked up the incoming white wire to the receptacle terminal marked white. The black to one of the terminals in the center. I have 120 volts to the receptacle. I then hooked up another line I want powering my lights. The black line I hooked up to the other center terminal and the other white I have going to the lone terminal on the switch. What am I doing wrong? Thanks for your help.

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Take the black going to the light off the center and hook where the white going to the light is now....then hook the white to the light with the other white and you will be good to go...You almost had it right...

just a couple of adjustments....:-)


Posted on Oct 11, 2010


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I am trying to install the light/outlet combo into my 80 year old bathroom. The outlet box only has 1 black wire and 1 white wire which come down from the top of the other wires are available

If the wiring is BX cable (that is, the two wires are inside a flexible metal jacket that looks like a fat coil spring) (you would see the end of the metal jacket inside the box), and the box is metal, then the box is already grounded and you can install a jumper wire from the box to the ground terminal on the outlet. You might have to add a screw to the box. But if you don't have a grounded box, then the right thing to do is to rewire it all the way back to the main panel. On the other hand, if you simply skip the ground wire, the switch and outlet will work but they will be a little more dangerous than before because now you will have what LOOKS like a grounded outlet, but isn't. By the way, you should be using a ground fault protected outlet in a bathroom.
Good luck, be safe.

Oct 10, 2012 | Cooper Wiring Devices Combination Switch &...

2 Answers

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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Sep 05, 2011 | Cooper Industries Cooper Wiring 274W...

1 Answer

I am trying to wire a new Emerson 230v pool pump to a timer. The pump has 2 red wires and 1 green wire coming from it. The timer has 3 wire terminals. The receptacle has 1 black wire, 1 white wire and 1...

You really need a 2-pole timer -- 2 wires in and 2 out. In that case the Black/White from the receptacle goes to the 2 "in" terminals and the 2 red wires from the pump go to the 2 "out" terminals. The WHITE wire from the receptacle goes nowhere - tape it off. The Bare wire from the receptacle goes to the GREEN (ground) wire on the pump.
A single-pole timer can be used, but in that case, you ALWAYS have 110 v on one side of the pump. Not safe, and not code compliant.

May 27, 2017 | Emerson THREADED SHAFT UP RATED - 1.00 HP...

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Cooper 274W Combination Device. Can the device be wired so that the sitch controls the recepticle?

Yes. For each half of the device there will be two terminals, plus one ground terminal. (total 5) For the receptacle, one terminal will be brass and the other will be silver. These two terminals will be on opposite sides of the receptacle, but both will be nearest the receptacle end. The other two terminals are for the switch, and their color is not important. You must place a jumper wire from the brass terminal of the receptacle to the nearest terminal of the switch. There might already be a tab connecting these two terminals together - if so, then you don't need the jumper, just tighten down these two screws. You will wire your incoming black wire to the other switch terminal. Your white wire goes to the remaining terminal which is for the receptacle and will be silver. Your ground wire goes to the green ground terminal. Good luck, Al K

Jul 06, 2011 | Cooper Wiring Devices Combination Switch &...

1 Answer

I"m installing a Cooper Devices

Wiring is suspect.
Black hot wire connects to dark screws.
Break off tab should be intact.
White neutral wire connects to silver screw.
Wire going to switch load connects to brass screw.

Jun 18, 2011 | Cooper Industries Cooper Wiring 274W...

1 Answer

I want to install two GFCI receptacles in an outside box. One is the Cooper with the on/off switch and the other a Eagle GFCI (no on/off) can/should this be done? and if so, how? We have wired it several...

Question is a bit unclear and wires are not known.
Are both GFCI devices inside same box?
Not necessary to install 2 GFCI devices inside same box since second outlet/switch can be protected using one GFCI.

1) Typical GFCI outlet device has 4 terminal screws (plus green ground screw for bare copper ground wire)
2) Two of the screws are labeled LINE. These screws are where the black Hot wire and white Neutral wire are connected. Black goes to brass screw and white to silver screw. And now the device has power to outlets, and both outlet are GFCI protected.
3) Two of the screws are labeled LOAD. These screws are where you attach additional outlets/switches that you want protected by GFCI. All outlets connected to LOAD screws would be GFCI protected. So attach black and white wires and run them to an ordinary outlet/switch and it will be GFCI protected. The key is to connect wires to the LOAD screws.
4) If you are using the outlet/switch combo GFCI device, then the same wiring shown above applies. The difference is the wires sticking out of back of device are for the switch. For example if switch controls a light, the wires going to the light connect to the two wires on back of device.

Jun 16, 2011 | Cooper Wiring Devices GFCI Outlet with 1...

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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)

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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.

Dec 08, 2010 | Cooper Industries Cooper Wiring 274W...

1 Answer

I have cooper combination switch and gfci out let they gave directions for gfci outlets how do you wire it using the switch o control the outlet

Hi ,., the two screws on the one side of the combo are for the white , neutral wires, they should be interconnected with a small link. The screw at the bottom of the switch connect the black power wire, then jumper a wire between the other two screws on that side and the switch will be controlling the receptacle.

May 02, 2010 | Cooper Wiring Devices 274LA DECORATOR SP...

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