Wiring a two-gang three-way intermediate switch as a two-gang two-way switch

[mightyulysses]

Hello, by mistake, I bought an intermediate two-gang three-way switch each switch has 2 x L1 and 2 x L2 terminals with no Com – one of the L2s has INT on it) to replace a two-way switch which has L1, L2 and Com. From looking online, it seems I can wire an intermediate switch as a two-way but I can't work out how to do it. Here's how it was wired up in the old switch.

Does anyone know if I can wire this into an intermeidate switch? If so, how? Thank you!

 

[Taylortwocities]

How to do it can be found HERE

This info used to be on the WIKI, but all the diagrams have now disappeared....

 

[mightyulysses]

Thank you. Does it matter if one of the L2s says INT on it?

And when it says bottom two terminals, it is referring to the two L2 terminals at the bottom? (That’s what i have).

 

[sparkwright]

Shouldn't matter.

Firstly, DO NOT MIX THE WIRES UP.
TAKE CLEAR PHOTOS AND MAKE CLEAR DRAWINGS.

Use bits of coloured tape or use a sharpie on (some of) the wires.

Basically, whatever is in the two COM terminals on the old switch need to go in top L1 terminals of the new switch.
And then then put whatever is L1 on the old into one of the bottom terminals on the new.
And then put whatever is L2 on the old into remaining bottom terminal of new.

It doesn't make much difference which round you do the bottom terminals on each individual switch on the new switch plate.

***

If, when you've done it, you find some switches appear to work upside down, and it's annoying you - just swap the two bottom connections over on the offending switch.

EDIT, by the way, in case I didn't mention it, DO NOT mix the wires up.

 

[mightyulysses]

Thank you! I did have the sense to mark the wires beforehand. However in previous configurations I wired it wrong so hopefully I haven’t caused any damage.

 

[mightyulysses]

Amazing. Worked like a charm. Thank you. Spent hours trying to get this work before I had the sense to ask for help.

 

[sparkwright]

Forgot to add - if the new switch plate is metal, you will need to run a new short piece of earth wire from the earth block to the earth terminal on the faceplate.

(I see it wasn't done before.)

 

[EFLImpudence]

Just to say - we don't have three-way switches in the U.K.; they are two-way.

They call two-way switches three-way in the U.S.

 

[mightyulysses]

Ah! thank you for correcting me.

 

[EFLImpudence]

And thank you for that response.

What a refreshing change.