Wiring A Switched Outlet And Light. The diagram shows the power entering into the circuit at the switch box location then sending one power line for the outlet which is hot all the time and a switched leg for the top half of the outlet being used for a table lamp or a floor. The connections for a switched outlet also known as a half hot plug.
The source is at the outlet and a switch loop is added to a new switch. The diagram shows the power entering into the circuit at the switch box location then sending one power line for the outlet which is hot all the time and a switched leg for the top half of the outlet being used for a table lamp or a floor. The problem is when the power comes to the switch and then from the switch to the light outlet or lights and only on a 2 wire cable.
In this case you must change the cable from the switch to the light outlet from a 2 wire to a 3 wire cable.
Alternatively it is possible to have a split outlet where one half of the outlet is switched and the other half is live at all times. At the light the white wire connects to the neutral terminal and the black wire connects to the hot. This wiring diagram illustrates adding wiring for a light switch to control an existing wall outlet. The switch comes first in the new part of the circuit and new 2 wire cable is run to it from the outlet.