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Nice to see pedantry being demonstrated at it's finest! I think the difference is purely semantic, but as a rule 'Consumer Unit' is language I use with domestic customers, other than that it's Distribution Board.
 
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Nice to see pedantry being demonstrated at it's finest! I think the difference is purely semantic, but as a rule 'Consumer Unit' is language is use with domestic customers, other than that it's Distribution Board.

The regulations make a distinction between the two along with all manufacturers. I think it's a bit more than just semantics.

The original 'consumer unit' was specific to domestic single phase installations and incorporated the cutout, metering, main switch and circuit protective devices into a single unit. This was in the 1950s.
What I can't find is a more up to date definition, other than the one in bs7671 which is not overly specific

ImageUploadedByTapatalk1431634389.086130.jpgImageUploadedByTapatalk1431634414.047782.jpg
 
The regulations make a distinction between the two along with all manufacturers. I think it's a bit more than just semantics.

The original 'consumer unit' was specific to domestic single phase installations and incorporated the cutout, metering, main switch and circuit protective devices into a single unit. This was in the 1950s.
What I can't find is a more up to date definition, other than the one in bs7671 which is not overly specific

View attachment 29126View attachment 29127

I know what you mean, but in reality it's semantics isn't it? When a fellow sparks says CU or DB you pretty much know what they mean...

IMO it seems like all CUs are DBs, but not all DBs are CUs...
 
then what you are refering to is a mainboard or switchgear [emoji12]

Nope, switchgear has it's own definition and would normally encompass DBs, switch fuses, fused switches, busbar chambers etc etc.

Mainboard is not a defined term as far as I know, and not one that I think I have ever heard of before.
 
Nope, switchgear has it's own definition and would normally encompass DBs, switch fuses, fused switches, busbar chambers etc etc.

Mainboard is not a defined term as far as I know, and not one that I think I have ever heard of before.
here you go, acti9 wall mounted switchgear

75437fbe4b1f2c02bf812832bb50307a.jpg



(biggest board ive worked on is Schneider powerpact4)
 
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Cough! Getting back the original thread; Wylex, Crabtree (same group), Schneider, Hager & MK Electric are all offering their new 'Amendment 3' domestic consumer units. I'm not sure I would include any others IMHO. My local wholesalers usually stock from all these manufactories, but only have Wylex currently available off the shelf, and only in a couple of sizes/flavours.

Seems that metal 'Amendment 3' boards are rarer than rocking horse pooh at the moment, so OP, you should speak to your electrician to see what he can obtain or wait a while till the shelves get stocked up and the guys here, can give their views, once they fitted a few. IMO the Hager one seems to of had some thought put into the design, the rest seem to have put the contents of their plastic CU's into a metal box.
 
So the Electrician as been and straight away he mentioned that he uses the new AM3 boxes, he uses a brand called M2 which I had not heard of but a quick search revealed this consumer unit M2 Concept Automation

twin screws on tails and a pretty smart looking unit actually, I'm not sure how there fuses stack up though, anyone used them before ?
 
im surprised no one has brought one out with a layer of fire mastic covering the inside XD that would contain the fire.

if there is a fire it will expand and cover the lot


what good is a cable grip for the tails if the problem is a loose or bad termination
 

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