Another replace old Crabtree four gang light switch with modern MK one question. Help!

[David Stanley]

Hi Everyone,

We have a four switch old Crabtree light switch in the hall that controls four lights; two of which are dual switched. I want to replace it with a modern MK switch but am confused by the lack of any clear markings on the Crabtree other than one that seems to be different to the others plus the remaining three have two connectors (the outside two, first and fourth, labelling from LHS in the picture) whilst the third has three connectors (third from LHS in the picture).

The weird one is the second from LHS. I know you guys like a challenge - any ideas how I transfer these over to the new switch? Going from LHS to RHS we have a single switch for hall light set 1, a dual switched switch for hall light set 2, a dual switched landing light switch and finally a single switch for wall lights. Any help, very welcome.

 

[David Stanley]

Apologies the picture should be rotated 90 degrees anti-clockwise when viewing and using my labelling.

 

[David Stanley]

And this is the back of the new switch.

 

[pete01]

You cant do it the old one has an intermediate switch (i think) the new one doesn't.

What country are you in? Or is it just really old colour wiring and no earth?

 

[EFLImpudence]

This one:

You might be able to replace it with an intermediate switch.

 

[David Stanley]

You cant do it the old one has an intermediate switch (i think) the new one doesn't.

What country are you in? Or is it just really old colour wiring and no earth?

I am in the UK

 

[David Stanley]

Thanks - what is an intermediate switch?

 

[pete01]

I am in the UK

You might be able to replace the one switch with this?

MK Grid Plus 20A Switch Module

www.toolstation.com

 

[David Stanley]

Thanks for the advice - has anyone used Leiber switches? they do a four gang intermediate light switch so I could get one of those.

 

[EFLImpudence]

Thanks - what is an intermediate switch?

It's a type of switch necessary when a light is operated by more than two switches.

It switches from parallel connections to across connections as in the different diagrams on the switches.

 

[David Stanley]

 

[EFLImpudence]

- has anyone used Leiber switches? they do a four gang intermediate light switch so I could get one of those.

Well done - yes, you can use that.

I don't know the make - but how bad can it be? It's just a switch.

 

[David Stanley]

So what do the diagrams show then? And could I use this Lieber light switch as a replacement? Thanks, David

 

[pete01]

This might help you

 

[David Stanley]

Well done - yes, you can use that.

I don't know the make - but how bad can it be? It's just a switch.

Allegedly, it's a premium product; at about £24 including shipping it should be!