Anyone know of any manufactures of small recessed DB's or any other options?

[JohnS888]

Hi all

Have a job to replace 6 way recessed DB. Have looked extensively online but smallest can find is 10 way. Seems there's
limited choice with these. Don't mind if have to chisel away abit to but need something preferably near the existing dimensions which are: Width 305, Height 180, Depth 80. Any help appreciated

 

[telectrix]

rip out the guts. fit MK main switch and6 x RCBOs into existng recessed board. refit original front cover, appropriately labelled.

 

[JohnS888]

BG Nexus is another one at 366x252x68 for 12 ways so you would have to cut out extra 30mm around.

https://www.bgelectrical.uk/public/downloads/data-sheets/consumer-units/CFFRSW8xx-rcd-incomer.pdf

Alternatively use existing guts as sugested above and get some fabricators to make you nice shiny cover for it

Thanks Kropaske

The second option would be preferable if doable. What are you suggesting leave everything in internally including din rail? And mount RCD's, MCB's etc to this. Not sure if existing din rail likely to be suitable for this or if would be falling foul of manufacturers spec. But seems like it might be doable
[automerge]1600027937[/automerge]

rip out the guts. fit MK main switch and6 x RCBOs into existng recessed board. refit original front cover, appropriately labelled.

That's the way I'm heading Tel seems like most practical solution. Might be bit of a dumb question but is new MK main switch and RCBO's likely to fit existing din rail?

 

[UNG]

Might be bit of a dumb question but is new MK main switch and RCBO's likely to fit existing din rail?

DIN rail is a standard size because it is manufactured to the DIN standard. The MCB's, RCBO's, main switches etc are all designed to fit DIN rail

 

[JohnS888]

DIN rail is a standard size because it is manufactured to the DIN standard

Cheers mate ? I knew it was a pretty stupid question thanks for clarifying
[automerge]1600031075[/automerge]

with a bit of enginrerring ingenuity, anything can be fitted to anything. look at 1940's . american Mustang fighter was crap till we fitted a RR merlin to make it one of the best fighters of the time. and that was before the world went crazy (metric, i mean).

Very true Tel lol. Got my vote this the way forward will order bits tomorrow

 

[kropaske]

I'd still enlarge opening to accommodate new box it's going to take you half an hour or so to do it.

If you going to refit old cover check first if your new mcb's/Rcbo's are not going to stick out little bit more preventing cover to shut properly.

 

[UNG]

rip out the guts. fit MK main switch and6 x RCBOs into existng recessed board. refit original front cover, appropriately labelled.

Does the original cover meet the requirements of amendment 3 that may become the issue if trying to comply with the latest regs

 

[pc1966]

It is never a problem of fitting the DIN rail, it is the busbar matching the new switch/RCBO that is an issue.

Might be as cheap/easy to by a MK board for the main switch and matching busbar and get RCBO separately!

 

[JohnS888]

I'd still enlarge opening to accommodate new box it's going to take you half an hour or so to do it.

If you going to refit old cover check first if your new mcb's/Rcbo's are not going to stick out little bit more preventing cover to shut properly.

Thanks for heads up Kropaske had already thought of this. Just going to order a second hand old mcb and compare it to new bits for sizing to be sure it's a goer

 

[westward10]

The new devices are approximately 8mm taller through the board cover. Dimensionally when on the DIN rail they seem okay. Whether they are compatible with that enclosure in compliance with Regulations is another thing.

 

[JohnS888]

The new devices are approximately 8mm taller through the board cover. Dimensionally when on the DIN rail they seem okay. Whether they are compatible with that enclosure in compliance with Regulations is another thing.View attachment 60813View attachment 60814View attachment 60815

Top man Westward. I'll have to check whether have the 8mm to spare. It's more likely that will go with RCBO's so hopefully these won't be much bigger. Don't suppose you have one of those as well do you? ?

 

[westward10]

No but the dimensions should be the same except the rcbo will be longer which could be an issue.

 

[freddo]

I'd still enlarge opening to accommodate new box it's going to take you half an hour or so to do it.

I'd also go with this for the amendment 3 thing, assuming the existing cover is plastic. I'm not sure if mixing different devices and enclosures is allowed.

 

[JohnS888]

I'd also go with this for the amendment 3 thing, assuming the existing cover is plastic. I'm not sure if mixing different devices and enclosures is allowed.

It is metallic freddo. I hear you with covering arse with mixing enclosure but just seems to be a non issue in my opinion if din tails are all made to a certain spec and fit both same spec main switch and rcbos surely we have pretty much not changed any other important characteristics of a pre manufactured board

 

[freddo]

You are probably fine then as long as the lid closes!

 

[JohnS888]

You are probably fine then as long as the lid closes!

? it's a big if yet mate lol