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Wylex dual tarrif CU availabilty.

mapj1
As I do not really do much domestic nowadays, I am after a bit of a steer from those that do.

I need to organise a neat arrangement in a flat with not much wall space and economy 7  (and 2 supply sub mains  in T and E that look like they have been pulled in by a crocodile using its teeth but that is something else. I feel can some hefty SWA and an adaptable box where the flat meets the common area coming on.)


Wylex claim to do a dual tariff consumer unit, that looks in the pix very like their current single phase one but with two main switches.

Given the dual supply option seems rare as hen's teeth, and the single phase and dual RCD ones are ex stock in every distributer nearby - has anyone fitted one ?,

and if so, is it the same internals , or is there more to it?

I am happy to buy a spare bus bar and an additional main switch (it will be 100% DP RCBO), but do not wish to be suddenly snookered for the want of an additional neutral block or something equally basic.

Also, has anyone ever sunk one into the masonary ?






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    Just as a random thought - it struck me as a pity they implemented dual tariff isolation as two separate DP switch-disconnectors - when it might have been neater (or at least less confusing and probably safer for the uninitiated) to have them linked as single 4-pole unit instead - just like they do with their "PV" range.  I don't know if their PV isolators link the two sides together, or if they do whether the links can be removed to make to fully (electrically) independent DP switches - but maybe modifying a PV type might be a possibility. No idea if the PV range is any less fictional than the dual tariff one though.


    Life could be so much easier if there was a modular system whereby you could just select the components you needed as assemble them as required, without having to worry about restrictive type approvals...


       - Andy.
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    Hager, BG and others do purpose made flush consumer units.


    Installing split with the second RCD as a main switch for the E7 should be straightforward,  if it's the "Hi-integrity" version the lights can go on a RCBO. 


    Andy
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    AJJewsbury:

    ... it might have been neater (or at least less confusing and probably safer for the uninitiated) to have them linked as single 4-pole unit instead ....




    Wylex do make a 4-pole main switch, which can be supplied in a REC4 enclosure in order to provide lightweight TPN isolation. I assume that one would fit in the enclosure of a SP CU.

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    Wylex do make a 4-pole main switch, which can be supplied in a REC4 enclosure in order to provide lightweight TPN isolation. I assume that one would fit in the enclosure of a SP CU.



    I was sort of hoping that the twin-DP device would act more like two DP ones glued together rather than a TPN one - i.e. have two N contacts that should close first and open last (compared to the L contacts). I'm not sure whether that's actually the case though - after all it is less critical on single phase systems.

      - Andy.
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    You can go Budget if you are not concerned about having Type AC RCDs.


    Andy B.
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    Chris Pearson:




    AJJewsbury:

    ... it might have been neater (or at least less confusing and probably safer for the uninitiated) to have them linked as single 4-pole unit instead ....




    Wylex do make a 4-pole main switch, which can be supplied in a REC4 enclosure in order to provide lightweight TPN isolation. I assume that one would fit in the enclosure of a SP CU.


     




    You would have to fit the main switch in the centre of the board with the splits either side of it, which some manufacturers do, but if you just use the RCDs as the main switches you save four ways, unless you use RCBOs.


    But you probably need to have a chat with the CU manufacturer before getting too involved.


    Andy Betteridge.

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    257210c4e4415196426de864b2b4f0ad-huge-20180223_161038.jpg

    There's around fifty of these consumer units on a local Housing Association estate. 


    Andy Betteridge
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    Apart from the bad dentistry on the LH bus bar, that sort of thing is pretty much exactly what I was thinking of. Hopefully a bit less ram jam - how many

    socket circuits and what are the rest  cooker, shower, ring,  water heater dunno, dunno, lights. and then 2 storage heaters and a storage supply for water ?


    However I'm drawn to the Wylex neutral breaking RCBOS, for the compact size and neutral breaking, I think crabtree are similar, but not Hagar as far as I know ?

    it is our place so no chint or other super cheap...  double pole bus bar is neater. Shame I have not heard of anyone using them


    Those in that pic look like MEM's floppy plastic phase, I hope not.
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    Hager RCBO's definitely do not break the neutral. But they are compact and type A as standard now.

    Wylex and Crabtree are exactly the same and do break the neutrals also type A as standard. 


    Nick
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    That thirty year old MEM board has a Type A RCD. ?

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