More about Wiring Switches
» Wiring Diagrams for Light Switches
» Residential Electrical Wiring: Guide to Home Wiring
» Need Electrical Help? Get a Quick Reply! Ask the Electrician
How to Wire a Light Switch
Easy to Understand Light Switch Wiring - Fully Explained Light Switch Wiring with Diagrams and Pictures with Step-By-Step Instructions to Guide You.
Understanding the Basic Light Switch for Home Electrical Wiring
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.
How to Wire a Single Switch
Featuring Wiring Diagrams for Single Pole Wall Switches Commonly used in the Home.
Explanation of Wiring Diagram #1
- Switch wiring shows the Power Source (Power In) starts at the switch box.
NOTE: Switched 'White' wires are shown in a different wiring diagram
- Circuit electrical wiring enters the switch box
- The Black Wire - Power In (source) attaches to one of the switch screw terminals
- Fixture wiring exits the switch box
- The Black Wire - Power Out wiring attaches to the other switch screw terminal
- The White Neutral wires splice together
- The ground wires splice together and bond to the switch and the box
Single Switch Applications
- Ceiling Light Fixtures
- Switch Controlled Outlet
- Half-Hot Wall Outlet
- Ceiling Fan and Light
Single Wall Switch Types and Styles
- Standard Toggle Switch
- Flat Rocker Switch
- Dimmer Switch
- Some Home Automation Switches
The Safest Way to Test Electrical Devices and Identify Electric Wires!The Non-Contact Electrical Tester
This is a testing tool that I have had in my personal electrical tool pouch for years, and is the first test tool I grab to help identify electrical wiring. It is a Non-contact tester that I use to easily Detect Voltage in Cables, Cords, Circuit Breakers, Lighting Fixtures, Switches, Outlets and Wires. Simply insert the end of the tester into an outlet, lamp socket, or hold the end of the tester against the wire you wish to test. Very handy and easy to use.
The Quickest Way to Check for Faulty Electrical Wiring!The Plug-In Outlet Tester
This is the first tool I grab to troubleshoot a problem with outlet circuit wiring. This popular tester is also used by most inspectors to test for power and check the polarity of circuit wiring.
It detects probable improper wiring conditions in standard 110-125 VAC outlets Provides 6 probable wiring conditions that are quick and easy to read for ultimate efficiency Lights indicate if wiring is correct and indicator light chart is included Tests standard 3-wire outlets UL Listed Light indicates if wiring is incorrect Very handy and easy to use.
Strip Off Wire Insulation without Nicking and Damaging the Electric Wire!The Wire Stripper and Wire Cutter
My absolute favorite wire stripping tool that I have had in my personal electrical tool pouch for years, and this is the tool I use to safely strip electrical wires.
This handy tool has multiple uses:
The wire gauges are shown on the side of the tool so you know which slot to use for stripping insulation.
The end of the tool can be used to grip and bend wire which is handy for attaching wire onto the screw terminals of switches and outlets..
The wire stripper will work on both solid and stranded wire. This tool is Very Handy and Easy to Use.