Wiring A Split Switched Outlet. In the standard wiring configuration for a switched split wired receptacle a two wire cable with a hot neutral and ground supplies power to the switch or receptacle and three wire cable with red and black hot wires and a white neutral then brings power from the switch to the split receptacle where the tab between the hot terminals on the receptacle is removed. Connect the red wire from the three wire cable to the other screw terminal on the switch.
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The red wire carries switched line to the switched half of the split receptacle. The wiring and connections will depend on where the power enters the circuit. There are two switched outlet wiring diagrams below that depict split outlet wiring.
This secondary hot wire controlled by the wall switch can now control current to one half of the split.
Wiring a switch to an outlet in this wiring a switch is added to to an existing outlet by removing the hot wire from outlet brass terminal and connected to the first terminal of switch. When to wire a split outlet while wiring the split outlet is fairly easy running the 12 3 or 14 3 electrical wire to the electrical box will not be easy if the walls are closed. Switched split receptacle wiring diagrams. Wiring a split outlet in most cases will be either new construction work or an alternation both of which require a permit.