2 Way Light Switch Wiring Diagram Old Colours

A two way switch uk schematic diagram of old wire colours.

2 way light switch wiring diagram old colours. Your lighting circuit must. 3 way light switching new cable colours 3 way light switch old cable colours 3 way light switch using a two wire control. 3 way switch schematic wiring diagram. This diagram illustrates wiring for one switch to control 2 or more lights.

The switch wiring is all the same but the switch wire cable c leads up to a different set up. The grey wire in cable d is a switched live and the blue wire in cable c and black wire in cable d are permanent lives and thus should be marked with brown sheathing at each end as shown. Multiple light wiring diagram. You have an incoming hot wire black going to one screw it does not matter if you use the brass or silver screw on the side of the 2 way switch and a black wire from the other screw on the 2 way switch going to the load light ceiling fan etc.

Schematic diagram of new wire colours. The way i show allows you to fairly easily add a second two way switch to an existing light switch by simply wiring them together in a certain way. There is a chance that if your house has these old wiring colours the switch drops may be from a loop in loop out radial lighting circuit done with junction boxes rather than ceiling roses as shown in fig 2. With a pair of 3 way switches either can make or break the connection that completes the circuit to the light.

Two way light switching 3 wire system new harmonised cable colours note. Notice the black wire is the only wire that we are controlling through the 2 way switch. Wiring a 3 way light switch is certainly more complicated than that of the more common single pole switch but you can figure it out if you follow our 3 way switch wiring diagram. This was unsafe having live electrical terminals so close to a metal wall plate.

The power source comes from the fixture and then connects to the power terminal. There is a chance that if your house has these old wiring colours the switch drops may be from a loop in loop out radial lighting circuit done with junction boxes rather than ceiling roses as shown in fig 2. The source is at sw1 and 2 wire cable runs from there to the fixtures. Two very old three way switches are depicted in the photo above.

Two very old three way switches. 2 way light switch 3 wire system new harmonised cable colours 2 way switch 3 wire system old cable colours 2 way switch two wire control three way switching. Wiring a 3 way light switch. A 2 way switch wiring diagram with power feed from the switch light.

The switch wiring is all the same but the switch wire cable c leads up to a different set up. The hot and neutral terminals on each fixture are spliced with a pigtail to the circuit wires which then continue on to the next light.