Will this RCD fit into this board? | on ElectriciansForums

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HappyHippyDad

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Morning....

I have a chap who wants 30mA protection on all his circuits.

He currently has the main switch as seen in the picture below showing the whole CU
[ElectriciansForums.net] Will this RCD fit into this board?

Will the RCD below fit into this board in the same place?
[ElectriciansForums.net] Will this RCD fit into this board?
The one he has is marked WSEM, the one I can buy is WSES. Are these interchangeable?

If they are not then I may try and convince him just to have 30mA protection on the circuit I will be working on. So my next question is, is there an RCBO which will fit this board?

Cheers.
 
Having seen another thread I dont think there is an RCBO that fits this board, just an RCCB taking up 2 positions. So it's just the question about whether the WSES and WSEM are interchangeable?

He will not be swayed to fit a new board so that is not an option.
 
Having seen another thread I dont think there is an RCBO that fits this board, just an RCCB taking up 2 positions. So it's just the question about whether the WSES and WSEM are interchangeable?

He will not be swayed to fit a new board so that is not an option.
Well HHD if you can't find a suitable replacement that the Manufacturers agree will be safe to exchange with the one already in situ, and the client won't agree to a CU change you don't have much of an option, do you? time to consider your options for the job. Other than putting in a Main Switch in place of the existing RCD and installing a stand alone RCD to cover the board, in a separate enclosure, I can't see as you can do anything else you can do, with the work involved to use a stand alone RCD +enclosure + tails + Henly blocks would it not be as cheap to swap the board? not done any price comparisons so not sure, worth a coat of looking at though, don't you think?
 
Last edited:
Ive recently added a new socket to a 3036 board.

Run a suitably sized cable to an external RCD and extend the circuit cables into the enclosure with the RCD in it.
Have done similar, it doesnt add much to the overall cost of the job either, With the 18th coming into effect in the new year then I think we will be doing a lot more of that, especially with light circuits as they are often found without rcd protection. Although I expect some funny customers who will feel we are trying to rob them when dodgy dave down the pub will do it sans rcd for half the price.
 
Cheers all, but does anyone know if the WSES fits in the WSEM? Or are you just politely ignoring that part as its a daft question due to lack of discrimination? :)

I should have perhaps made it more clear that this is specifically what the client has asked for. I could easily add another enclosure by the RCD to give my work 30mA, or I could even just fit a 30mA RCD fused spur by in place of the JB I am pinching the power from, however he wants the 100mA main switch replaced by a 30mA. Will the WSES fit in this board?
 
I believe that they are the same physical configuration.
I am fairly sure I replaced one sometime ago, however I cannot remember if it was 30mA to 100mA or vice versa or just a straight swap, so not much help there!
There is a model that is not compatible, just not quite able to align the rigid neutral bar, but I would have to search through old spares to be able to compare and contrast.
Just tell the customer you need to take the existing one with you to ensure compatibility!!;)
 

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