Opening up an outlet or light switch box you might be confronted with a bewildering array of wires of different colorsblack white bare copper and other colors closely intermingle yet each one has a specific purpose. This color of wire is used to transfer power to switches and outlets in all types of circuits.
110 Wiring Colors Diagram Wiring Diagram
Light switch wiring colors. Blue wires are generally used in a three way and four way switch applications by travelers. The neutral wire from the source is spliced to the white cable wire and continues on to the light. What the color of an electrical wire means black electrical wires. The white or neutral wire bypasses the switch and goes straight to your lights. The switch serves to cut the power from reaching the light switch. In other words blue yellow violet and brown wires come into play when you have multiple wall switch locationstwo in a 3 way switch or three in a 4 way switchthat control the same set of.
In a three wire cable there will also be an additional red insulated wire commonly used as the traveler in an application such as a two way switch. The dark colored terminal is the common terminal and brings power from the source to the light fixture. These switches have two light colored terminals and one dark colored terminal plus a ground screw. Like black wires they can also be. All nm cables contain the basic black insulation and white insulation wires plus the bare copper or green insulated ground wire. Color coding on three way switches is very important.
Blue and yellow. A standard single pole light switch will simply require you to attach the black load wire into it and then the black wire leaving the switch and to your lights. On the other hand yellow wires are used as switch legs. Hook up the ground wire to the box and then to the switch. Copper and green wires copper and green wires are used for grounding purposes only. The light colored terminals are the traveler terminals and are interchangeable.
Wiring two switches for two lights here two switches are wired in the same box to control two separate lights. Knowing the purpose of each wire will keep you safe and your houses electrical system in top working order. Standard colors used for home wiring. Push the switch into the box and screw it in. In your switch box you will only have one black one white and one ground wire. In 220 volt circuits red wires are the secondary live wires.
If there is a grounding terminal now simply hook the black wire to the bottom terminal and the white wire to the top terminal. At the light the white wire connects to the neutral terminal and the black wire connects to the hot.
Gallery of Light Switch Wiring Colors
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