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Identifying an old Wylex CU Breaker

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Marti

Marti

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I was asked to "just fit a bigger breaker" by a plumber who had installed an electric shower for a customer. Bit surprised he hadn't finished the task but I arrived with a DIN rail full of conventional, spring fitted MCB's. I've seen a fair amount of old kit (East London rentals are full of the stuff) but this was new to me. I've suggested / quoted either a new CU or an external housing with an isolator and RCBO but I'd be interested to know what this was if one of the more experienced heads could identify it. Two images attached. Thanks guys.
 

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separate enclosure with RCBO as the shower must be RCD protected. split the CU tails.
 
Will be stripping three of these boards out in the next few weeks and and combining them in a two tier, SPD and all RCBO hager board.

Looking at 18- 20 circuits, sadly none above 32A.

Is there any value in this Stuff?
 
GBDamo said:
Will be stripping three of these boards out in the next few weeks and and combining them in a two tier, SPD and all RCBO hager board.

Looking at 18- 20 circuits, sadly none above 32A.

Is there any value in this Stuff?
Click to expand...
For the unusual sizes yes people like this will buy them from you albeit not for what they are selling them at.
willrose-electrical.co.uk

Wylex NB MCB 40 Amp M6 Type 1 Single Pole 40A Circuit Breaker Stotz Kontakt NB40 - Willrose Electrical - Discontinued & Obsolete Circuit Breakers

Used But in Good Condition. NB Range MCB. Same as ABB/Proteus. Made by Stotz Kontakt - Wylex NB MCB 40 Amp M6 Type 1 Single Pole 40A Circuit Breaker Stotz Kontakt NB40
willrose-electrical.co.uk willrose-electrical.co.uk
 
I think I’ve got a bucket of old breakers.....


quick rake through the van, found MEM. Are these compatible? Might still have Wylex ones in my store.

[ElectriciansForums.net] Identifying an old Wylex CU Breaker[ElectriciansForums.net] Identifying an old Wylex CU Breaker
 
Last edited:
littlespark said:
I think I’ve got a bucket of old breakers.....


quick rake through the van, found MEM. Are these compatible? Might still have Wylex ones in my store.

View attachment 85990View attachment 85991
Click to expand...
That's interesting and looks very similar although one of my fears is, as mentioned above, will the thirty year old RCD work and would you trust your reputation or their life to it? Brilliant answers - I may print this and thread and show it to the client whom, I suspect, is wondering why a simple breaker has now gone up ten fold in price (thanks Mr Plumber)!
 
Last edited:
Just looks through my old breakers and have many 30As but nothing above. This is the difference between the breaker @littlespark showed and the Wylex one, the busbar fitting is a different height and don't really fit.[ElectriciansForums.net] Identifying an old Wylex CU Breaker
 
Interestingly, quoted the the client with a follow-up to "explain why the "half hour for the sparky to fit a breaker" the plumber had promised before disappearing, had morphed into a board change or external RCD. The client reported "all sorted"! my suspicion is an unsafe connection to the shower but I've done my best.
 

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