How old is this rewireable fuse box?

UNG · Jul 29, 2022

pc1966 said:
For now at least. Though it is not beyond belief they would regulate to 2 cables per breaker (e.g. RFC or two light feeds) and then it would be practical.

But two cables of what CSA it would certainly make the configuration of a 32A MCB / RCBO interesting

UNG · Jul 29, 2022

Dustydazzler said:
I would do one step further and do away with the single screw type busbar and make all breakers rcbos plug in with back stabs so their is no exposed bar anymore

Why lose the versatility we have now

Dustydazzler · Jul 29, 2022

UNG said:
Why lose the versatility we have now

Plug in breakers can just as easily be swapped out / moved around as breakers that screw to a traditional busbar

pc1966 · Jul 29, 2022

UNG said:
But two cables of what CSA it would certainly make the configuration of a 32A MCB / RCBO interesting

Not sure, but some spring connection DIN terminals cope with 0.2mm to 10mm which would cover most domestic cases.

A sensible approach would be based on the rating, so 6A would only need, say 1mm to 4mm, where as 50A would be something like 6-16mm.

UNG · Jul 29, 2022

Dustydazzler said:
In a modern board you don't really need to double up feeds like you had to in the old smaller way boards

That's assuming you can get a board of sufficient size in the space vacated by the old board

cliffed · Jul 29, 2022

That was my first DB… sparky said have a go @ connecting it,,, was a 4 way with 16mm tails in a council house..nightmare

littlespark · Jul 29, 2022

In answer to the thread title.....

Very old.... if found in a house.....
Not old enough..... if found in Lucians museum

Concerning MCB's with WAGO style connectors... If you remember, i worked in a german built kit house, and the breakers had push-in springed connectors... 2 per breaker... Photos are on here somewhere. Had to be a 48 way board or something.... Everything was done on radials.... to individual outlets in some instances.

Edit: photo..... D2CCB8AA-E942-4EF3-8DBA-8DF470913C56.jpeg - https://www.electriciansforums.net/media/d2ccb8aa-e942-4ef3-8dba-8df470913c56-jpeg.22984/

brianmoooore · Jul 29, 2022

littlespark said:
Concerning MCB's with WAGO style connectors... If you remember, i worked in a german built kit house, and the breakers had push-in springed connectors...

I have Hager board in use in a shed that has push in terminals for the neutral an earth bars.

SparkySy · Jul 29, 2022

Yes I've used some Hager boards and GEWISS that had sprung terminals for the neutral & earth connections, they were very quick to terminate, don't see a problem with them at all, no more getting the torque elbow out to do them up!

freddo · Jul 29, 2022

littlespark said:
Concerning MCB's with WAGO style connectors... If you remember, i worked in a german built kit house, and the breakers had push-in springed connectors... 2 per breaker... Photos are on here somewhere. Had to be a 48 way board or something.... Everything was done on radials.... to individual outlets in some instances.

Here is a consumer unit? from a Huf Haus that also uses those push in terminal MCBs. (sorry it's a bit blurry)

ipf · Jul 29, 2022

ipf said:
One really good point about them is the double screw terminals.
Until the latest models, all the outgoing Live and Neutral terms were double screwed, as well as the incomers.
Good positions for the 2 bars also, IMO.

They can sometimes be a bar steward to replace, though.
Extending cables is a regular duty, especially the neutrals. Did one last year which was packed and some N's were about 2 inches long, entering through the back.
Probably more the installers fault, though.

No doubt they were way ahead of anything else on the market, for years. The basic simplicity of the design stands out as way ahead of anything else on the market.

For example...this decent 1965 Bill effort....even if it is metal clad.

freddo · Jul 29, 2022

I quite like those Bill units, especially as they confuse a lot of people, as they don't look like a fusebox when the cover is on. Not a fan of the single earth terminal though, often see all the CPCs twisted together outside the enclosure. Did see one once where the installer actually bothered to solder the twisted CPCs and then finish the joint by slipping some black Systoflex over it.

ipf · Jul 29, 2022

freddo said:
I quite like those Bill units, especially as they confuse a lot of people, as they don't look like a fusebox when the cover is on.

Yeah, could fool some, for sure. Looks like a switch fuse.

cliffed · Jul 30, 2022

freddo said:
Here is a consumer unit? from a Huf Haus that also uses those push in terminal MCBs. (sorry it's a bit blurry)
View attachment 99887

The way forward looks futuristic

cliffed · Jul 30, 2022

ipf said:
They can sometimes be a bar steward to replace, though.
Extending cables is a regular duty, especially the neutrals. Did one last year which was packed and some N's were about 2 inches long, entering through the back.
Probably more the installers fault, though.

No doubt they were way ahead of anything else on the market, for years. The basic simplicity of the design stands out as way ahead of anything else on the market.

For example...this decent 1965 Bill effort....even if it is metal clad.

View attachment 99899

Metal clad back then… many light years later we are now fitting…. Meta clad

telectrix · Jul 30, 2022

had the joys of replacing a 1950's board with cartridge fuses fitted. .even had a wheel compartment with spare fuses in it. it was bakelite, not modern plastic,

freddo · Jul 30, 2022

cliffed said:
The way forward looks futuristic

The way forward looks expensive!

telectrix · Jul 30, 2022

just waiting for the invention of wi-fi sockets. slap 'em anywhere and they'll get the power from the wi-fi, via some sort of electronic wizardry . expect to pay about £400 per socket when the initial price falls due to Chinese manufacture.

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