Question about Cooper Industries Cooper Wiring 274W Switch and Outlet

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I need a wiring diagram for a 274A Light switch/ plug in. Everything we try, we are not getting anywhere.

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There are more than a few ways to wire this device. The switch box where the device is installed _must_ have a neutral wire for the receptacle to work. This is usually a white wire.

The switch box should have at least 2 cables in it. One cable is the incoming HOT(black) and neutral(white) from the circuit breaker panel (or source). The second cable is the outgoing switch leg(black) and neutral(white) to the light. Each cable should have a bare equipment grounding wire.

The most common way to install this device is to connect the hot wire to one of the black screws, pick one. ( I'm assuming that you have _not_ removed the brass tab between the 2 black screws.)

The 2 neutral (white) wires are twisted together under a wirenut along with a pigtail which connects to the silver screw on the device.

The black wire that goes to the light (switch leg) is then connected to the brass or gold screw.

The bare ground wires are twisted together under a wirenut along with a pigtail which is connected to the green screw.

Posted on Aug 30, 2010

  • noliagirl Dec 08, 2010

    what if there are only 3 wires...looks like I have a red wire a black wire and a copper wire. I hooked the copper wire to the green terminal and the black to the brass and the red to silver...only the red light came on--not receiving any power to the outlet


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