For example you may want to. When you want to switch electrical devices lights or other outlets on or off from two locations you use a pair of 3 way switches.
4 Wire Wiring Diagram Multiple Lights Source Wiring Diagrams
How do you wire a 4 way electrical switch. Do you need a 3 way switch wiring diagram. As you will see most 4 way switch wiring is placed between the wiring of two 3 way switches therefore a 4way switch is installed with two 3way switches. Power from light fixture to light switch. Connect the last switch in the usual manner looping the wire around the screw in a clockwise direction. A 4 way switch wiring diagram is the clearest and easiest way to wire that pesky 4 way switch. I have a few of the most common ways in wiring a 4 way switch to help you with your basic home wiring projects.
To connect the switches simply score the wire with your wire stripper and push the insulation to expose about 34 in. To illustrate the 4 way switch wiring switch boxes and fixture boxes are not shown but are obviously required for every application. To switch from three or more locations you will need to add 4 way switches. Instead of running a separate pigtail from the hot wire to each switch just leave the hot wire extra long.
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