Ace Red And Yellow Wires In Light Switch

White and gray electrical wires.

Red and yellow wires in light switch. These wires carry power but aren t used in typical outlet wiring. It could be there is or once was a three way switch in play. The cable coming from the first light switch is connected as follows fig 5.

Ceiling rose wiring. Electricians often use black red or blue wires to deliver electricity to a circuit from the main panel. They re used in more complicated circuits and are used as hot wires to conduct current between switches and poles therefore known as travelers.

But first let s get my disclaimer out of the way. Never work on a light switch with the power on. The white wire is the neutral and all other colors are hot.

Always assume the red wire in those applications is live. Removing existing light fitting. Yellow wires are used as switch legs to ceiling fans structural lights and outlets paired with light switches while blue wires are usually used as travelers for three or four way switches.

This arrangement is often found in stairways with one switch upstairs and one switch downstairs or in long hallways with a switch at either end. The red wire is connected to the common c terminal the yellow wire is connected to the l1 terminal the blue wire is connected to the l2 terminal and the earth wire is connected to the earth terminal. Or it could be the red wire is the wire going to the fixture and the black wires are the live wires.

We ll cover the easier scenario first. The second two way light switch is a bit easier to wire up. Turn off the power.