How To Wire A 2 Way Switch With 3 Core. Start with the three-way switch that will be removed. Click here for an overview of all these pages.
I am going to show how to wire a three-way switch. Once the tab is removed, the upper and lower outlet plugs are independent so one can be, for example, controlled by a wall switch. An easy way to ground the box is to connect two.
Learn how to remove an old standard single-pole light switch and wire and install a replacement switch in a few simple steps.
Before proceeding, make sure you are comfortable working with.
An easy way to ground the box is to connect two. Three-way switches often control one light fixture at both ends of a hallway. You should have three remaining wires in each box.