1 gang 2 way dimmer

[DimAndDimmer]

I am replacing a light switch with a dimmer. The existing switch has one black wire (top) and one red wire (bottom).
The dimmer has three terminals: arrow, L2 and L1 -

I am not sure which terminals to connect the wires to - or whether I have bought the right dimmer. Can anyone help?

Adam

 

[supersparks]

red to comm and black to l1 nothing goes to l2
oh and the plate is metal so make sure it IS EARTHED

AR

 

[DimAndDimmer]

Is comm the terminal with the wiggly line and arrow through it?

Thanks

Adam

 

[breezer]

yes it is, and dont forget to earth the switch

(you see the brass terminal on the right of the pic. put a wire between that and the back box . The back box should already have an earth wire there)

 

[DimAndDimmer]

Thank you both - very helpful.

Dimmer fitted (including EARTH) and working.

Is it normal for dimmer and fuse box to emit a quiet buzzing? Especially when lights dimmed?

Adam

 

[ChrisRogers]

its normal for the dimmer, not sure about the fuse box....

 

[supersparks]

fuse boxes do sometimes aswell.....if you have breakers.....if they are fuses i would be worrid

 

[DimAndDimmer]

They are breakers.

So it seems OK.

Thanks all for your help.

Adam

 

[breezer]

it may be they are humming because they do not know the words

 

[supersparks]

maybe breezer, maybe, seems plausable