Grid switches

[b21playa]

Hi all

Do all grid switches require a dedicated backbox? I’ve just purchased a Crabtree 1 gang yoke and a couple of switches to try out on a normal pattress box and managed to get the yoke fitted but then it was too deep for the cover plate to fit.

thanks

 

[ericmark]

The LAP grid system from Screwfix does not need a plate in same way, the switches or sockets just click into place.

 

[b21playa]

The LAP grid system from Screwfix does not need a plate in same way, the switches or sockets just click into place.

Thanks for that. Shame I’m not a fan of LAP.

Think I’ll just stick to the Crabtree capitol range for now, but chunky but good quality and price.

 

[EFLImpudence]

Doesn't the yoke have tabs which stop it going below the wall surface?

 

[sparkwright]

Often, particularly when using a surface pattress, you need to loosely screw the yoke so it just touches the edge of the pattress.

I think the tabs can go past the front edge of a surface pattress.

When you fit the cover it all tightens up nicely.

It may take a few attempts.

The grid stuff is not well designed to fit on surface pattress boxes, but can be done.

 

[b21playa]

Doesn't the yoke have tabs which stop it going below the wall surface?

I bent them backwards which allows it to go past

 

[EFLImpudence]

Well, there you go.

 

[b21playa]

But don’t like the fact that the yoke needs to be loose

 

[EFLImpudence]

It won't be will it if you screw it down until the tabs press on the wall.

 

[b21playa]

It won't be will it if you screw it down until the tabs press on the wall.

Interesting, I get what you mean now. Would need to try it out again after bending tabs back out

 

[sparkwright]

It won't be will it if you screw it down until the tabs press on the wall.

He said pattress, which I take not to mean a recessed box flush to the wall.

 

[RF Lighting]

Leave the tabs bent in now you’ve done it. They aren’t really needed for a surface patress anyway.

You need to get the yoke screwed in to just the right depth by trial and error if you’ve not done it before.

It doesn’t matter if the yoke is flapping about when you start to screw the faceplate on. If it’s at the correct depth the front plate will tighten down onto the edges of the patress and stop any movement, while the grid modules will sit flush with the front plate.

 

[EFLImpudence]

He also said back box and has said the yoke goes below wall surface - because of bent tabs.

 

[b21playa]

Sorry all this is a flush backbox, I call them all patresses

 

[333rocky333]

The tabs would ideally rest flat onto the wall, if theres not enough wall , then what i do, usually with surface boxes, but would work with flush boxes, is slip some thin 4mm washers over the screws then you can get the grid yoke tight and not flapping about, it may take a few goes fitting the cover on and off till you get the spacing right