Wiring a dimmer switch

[StevePage]

Hi All,

I am after some help please? After decorating our lounge I am trying to replace a standard light switch with a dimmer switch for a new LED ceiling light. The current switch has one red wire in the top connection and two red wires twisted together in the bottom one. The earth and neutral wires are in separate isolating connectors. The dimmer switch I have tried to replace it with has L1, L2, common and earth terminals and I cannot work out which wire should go where, any suggestions please?

Thanks in advance

Steve

 

[Highway Man]

Pop your two red wires that are twisted together into the common terminal and the other red wire into L1, put the earths and neutrals in as before. Unless it is a metal clad switch then you need to put the earths into that by either taking a single earth wire into this from the others. If it is plastic there is no need. You should have your earth wires into your back box with a brass terminal if it is a recessed metal back box rather than have them in a terminal block.

 

[StevePage]

Thanks for the speedy reply. Got it for the red wires, so the neutral goes into L2 or stays in the isolating block? The back box is plastic but the new dimmer face pate is metal so would I need to connect the earth to it? As there is an earth terminal on it.

 

[Highway Man]

Thanks for the speedy reply. Got it for the red wires, so the neutral goes into L2 or stays in the isolating block? The back box is plastic but the new dimmer face pate is metal so would I need to connect the earth to it? As there is an earth terminal on it.

yes connect your earths into the face plate earth terminal, leave your neutrals out and in the isolating block, they do not go into your switch.

 

[StevePage]

OK great, thanks for your help.

 

[Highway Man]

OK great, thanks for your help.

You're welcome