Single switch electrical socket with l1, n1,l2 and n2 connected

[Jim54]

Hi,
I'm trying to change the switch which controls my heating; I took it off the wall and it's got five connectors (L1,N2 and L2, N2). The switch isn't broken it's just not very appealing so I know what's there works. I was going to use a light single gang light switch, with COM, L1 and L2, but I don't think this is the right solution.

Looking into this in a bit more detail I was wondering if I needed a fused socket too?

Any advice would be gratefully received,
James

 

[Echo the husky]

Photos please. It sounds like some sort of double pole switch, in which case a light switch is not a suitable replacement.

 

[EFLImpudence]

it's got five connectors (L1,N2 and L2, N2).

???

Plus earth ???

 

[Jim54]

Yes, plus earth, sorry about that. Here's a photo of the front and the best angle of the back I can get without taking it off,

 

[EFLImpudence]

Yes, it is a double pole switch - that is it switches both Line and Neutral.

What heating does it control?

 

[ban-all-sheds]

it's just not very appealing

It would be a great deal more appealing if some fazy lucker hadn't painted over it rather than temporarily remove it when decorating.

 

[Jim54]

ban-all-sheds Yes, I should have taken that as a sign of their general attitude to maintenance when buying the house.

It's attached to a ~2013 era gas Combi boiler.

 

[EFLImpudence]

An FCU (also DP) with 3A fuse is usual for central heating isolator.

It should isolate the whole system; not just the boiler.

 

[Jim54]

Hi,
Would something like this do if I bought a 3A fuse? http://www.screwfix.com/p/lap-13a-switched-fused-connection-unit-stainless-steel/48742
Thanks very much for the help!

 

[EFLImpudence]

Yes.

 

[Jim54]

Marvellous, thanks very much. Really appreciate the advice.

 

[securespark]

Old Crabtree 20A DP switch.

 

[ban-all-sheds]

Yes.

....if the box is deep enough.