Does this Legrand RCD fit this Legrand CU?

[HappyHippyDad]

Afternoon all..

Just lazily working through a quote on this wet and cold Sunday.

I'm trying to get Type A RCD protection for my new work. At present it has Type AC RCD.

My question is, does this Type A Legrand RCD (see link) fit in this CU as a direct replacement for the existing RCD (see picture)? They do look pretty identical! Just want to be sure though.

Legrand 411556 | RCD Dx3 DP Type A 63A 30Ma 230V 2 Module | Rexel UK

Get RCD Dx3 DP Type A 63A 30Ma 230V 2 Module at wholesale prices at Rexel UK - your electrical distributor. Join Now!

www.rexel.co.uk

 

[Mike Johnson]

I think Legrand give dimension and application/fit on their web site, certainly in the catalogue.

 

[nicebutdim]

I think Legrand give dimension and application/fit on their web site, certainly in the catalogue.

Other than mentioning their domestic range of Rx3 breakers are compatible with both prong and fork type busbars, I can find no reference to backward compatibiltiy in their current catalogue.

 

[Mike Johnson]

I think you have to go onto the web-site and look for compatibly charts.

 

[nicebutdim]

I think you have to go onto the web-site and look for compatibly charts.

Perhaps you could provide a demonstration as my attempts resulted in that previous post.

 

[HappyHippyDad]

Perhaps you could provide a demonstration as my attempts resulted in that previous post.

Mine too

 

[Mike Johnson]

Perhaps a search through here may bring some results: Compatible products - Works with Legrand - https://developer.legrand.com/documentation/compatible-product/

 

[nicebutdim]

Smart home compatibility won't help much with selection of a suitable RCBO.

 

[pc1966]

I suspect you will have to ask Legrand directly.

Incidentally, why two circuits labelled garage? The 40A MCB might be a SWA feed, but the other? A previous T&E feed?

 

[HappyHippyDad]

I suspect you will have to ask Legrand directly.

Incidentally, why two circuits labelled garage? The 40A MCB might be a SWA feed, but the other? A previous T&E feed?

There are 2 garages

 

[Risteard]

Really I think you would need to consult with their technical department. Only really they can answer this definitively.