This page contains several diagrams for wiring a switch to control one or more receptacle outlets including a split receptacle and multiple outlets wired together.
The wiring in these diagrams is for 15 amp circuits and 14/2 awg cable however, existing light and receptacle circuits may be 15 or 20 amps. When working with 20 amp circuits use 12 gauge wire and 20 amp devices.
It is the responsibility of the user of this information to know and understand the NEC (National Electrical Code) as it applies to them, as well as any local regulations or laws that may pertain. While many jurisdictions do adopt the standards of the NEC, some may have requirements in addition to, or exemptions from those standards.
The information on this page is intended to aid in electrical wiring projects that become necessary when doing DIY home improvements and repairs. Some of the diagrams here are for older circuits that may not adhere to the latest code updates. When running a new circuit be sure to use the latest approved wiring arrangements. We cannot assume responsibility for personal injury or property damage as a result of using the information provided here.
In the diagrams on this website the brass colored terminals on the devices represent the hot side of the circuit and the silver colored terminals represent the neutral side. Green is used to denote ground wires and terminals. Not all outlet boxes or older devices will have a grounding terminal. When running new wiring the ground wires should be spliced with a short piece of wire to connect to each device that has a grounding terminal, and to any grounding terminals in the outlet boxes. Also be aware that the white wire may be use to carry current in some household circuits, in these cases it should be marked with black electrical tape to indicate it is hot.
This wiring diagram illustrates adding a switch to control an existing receptacle outlet. The source is at the receptacle and a switch loop is added to a new switch.
This diagram illustrates wiring a switch to a split receptacle outlet with the source at the receptacle. The tab connecting the two hot terminals is removed to break the circuit between the top and bottom outlet. With this wiring scheme the top outlet is always hot and the bottom is controlled by a new switch.
This wiring diagram illustrates a circuit with the source at a switch. The switch then controls a receptacle outlet coming after.
This diagram shows the wiring for a switch and multiple receptacles. The source for the circuit is at the switch and the outlets are wired from one to the next in a series arrangement.