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Wiring Diagrams for Switches
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by Dave Rongey©2007-2011 Summary: Fully explained wiring diagrams and pictures show how to wire switches including: single switches 3-way switches and 4-way switches making it easy to wire. |
Electrical Wiring Diagrams Commonly used in the Home for Switches |
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| Please Note: To illustrate the wiring of these switches, Switch Boxes and Fixture Boxes are not shown but are obviously required for every application. These diagrams are shown as using the Romex wiring method. These Romex cables contain a ground conductor which is required for all applications as well. The ground conductors are always bonded together to insure the integrity of the ground path. If you are using metal boxes, the ground conductor must be attached to each box by using a threaded ground screw or provided attachment. The frames of the switches which have a ground screw are to be attached to the ground conductor as required. Please contact me if you have any questions or comments regarding these diagrams. |
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| Single Pole Switches | 3-Way Switches | 4-Way Switches |
InstructionsSingle Pole Switching |
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| Single Pole switching provides switching from one location only. | ||
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| Single pole switch diagram#1 shows the power source starting at the switch box. | ||
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Single pole switch diagram #2 shows the power source starting at the fixture box. The white wire of the romex going to the switch is attached to the black line in the fixture box using a wirenut. The white wire becomes the energized switch leg, as indicated by using black or red electrical tape. |
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| The three way switch diagram #2, shows the power source starting at the fixture. The white wire of the romex going to the switch is attached to the black line in the fixture box using a wirenut. The white wire becomes the energized switch leg, as indicated by using black or red electrical tape. [ top ] |
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| 4-Way Switching 4-Way Switching provides switching from three or more locations. If more than three switches are needed, simply place more four way switches between the three way switches. |
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This 4-way switch diagram #2, shows the power source starting at the fixture. The white wire of the romex going to the switch is attached to the black line in the fixture box using a wirenut. The white wire becomes the energized switch leg, as indicated by using black or red electrical tape.
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