How to Install a Wall Outlet in a Three-Way Switch Circuit Turn off the circuit breaker protecting the light switch circuit that you will be tapping into.Check to make sure that the power is off and the circuit is safe to work on by bringing..Mark a spot on the wall where you want to install the receptacle outlet. How to Install a Wall Outlet in a Three-Way Switch Circuit Is this answer helpful?Thanks!Give more feedbackThanks!How can it be improved?How can the answer be improved?Tell us how Adding a Hot Receptacle to a 3-Way Switch Circuit Wiring a Basic Light Switch Wiring a Switched Outlet Wiring Diagram – Power to Receptacle This entry was posted in Indoor Wiring Diagrams and tagged 3-way circuit , 3-way switch , 3-way switch variation , diagram , do-it-yourself , hot receptacle , house wiring , receptacle , wiring , wiring diagram . 3 Way Switch Wiring Diagrams - Do-it-yourself-help 3 Way Switched Outlet Wiring Diagram. This diagram shows the wiring arrangement for a 3 way switched outlet. With this wiring the receptacle can be controlled from two locations. The source is at SW1 and 3-wire cable runs between all the devices.