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rcbo

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  1. J

    two radials into an RCBO

    No spare ways in the consumer unit. There are two low current radials on their own RCBOs. Do the regs forbid putting the two radials onto the same RCBO - that is two L wires into the one RCBO?
  2. HappyHippyDad

    Will an RCBO fit in the MK board?

    I want to change the 3 MCB's in the picture for RCBO's. Will the MK ones fit? Cheers ?
  3. G

    Liklihood of adjacent RCBO tripping due to fault on another circuit?

    Got an odd one. Supply is TPN TN-CS and all looks reasonably tidy but the circuit schedules bear little resemblance to the DB contents. I have a piece of fixed equipment that is generating intermittent faults and tripping the C16 RCBO. The circuit tests fine at 999MOhms at 500V on IR. So it's...
  4. B

    RCBO testing

    I have come across a couple of Eaton RCBOs in Memera 2000AD boards and they don’t trip at the board when tested but do at the point of use/load, what’s up with that then? Cheers
  5. Jukebox mike

    UK Wanted Alternative to Square D Domae RCBo B6 or B10

    hello I am after an alternative to the square D Domae rang of rcbo's...I am after B6 or B10...
  6. E

    UK rcbo or cu change

    Hi Folks RCBO or C/U change that is the question! On the 18th edition the lecturer in a conversation said if the C/U is not non combustible you cant make alterations i.e fit RCBOs for circuits; this ring true with anyone else? Loads 16 and 17th edition boards nothing wrong with enclosure but...
  7. HappyHippyDad

    Which RCBO fits this merlin gerlin multi 9 board?

    The board in the picture below has 2 x RCBO's in it, they look like matches so I'm guessing schneider is the new merlin gerlin and that these RCBO's are a perfect fit? However, Schneider seem to do other RCBO's. Easy9, acti9 and others. The Acti9 looks like it may fit this board but it is more...
  8. I

    Rcbo starbreaker

    Just changed a 32amp rcbo on a cooker circuit. Obviously done the checks. The oven light is coming on. But it's not switching on to cook. Was the starbreaker type. You think it's something to do with the rcbo. Thanks.
  9. I

    RCBO required?

    Would you deem a socket (twin or commando) to be exempt from requiring RCD protection if it is fitted above a suspended ceiling installed to supply a specific piece of equipment? Initially I'm thinking yes. Wouldn't think anyone is going to go out of their way to access them if there are other...
  10. timhoward

    MCB -> RCBO I'm missing something silly

    Simple job, swap an MCB to an RCBO on a lighting circuit. It's got me totally stumped! IR test L+N -> E is fine on the circuit. So is Zs. All 2-way switches operated. Instant trip when changed to RCBO though, and tried two RCBO's Ramp tested them both, all good. All tests pass on them with no...
  11. C

    Rcbo

    Hi all in a rcbo t Should the white pe cable. he sleeves in green/yellow earth sledging on a domestic consumer unit thanks for your help and stay safe Pete
  12. newfutile

    Maximum ZS exceeded on RCBO

    On a recent EICR i have ring final circuits (sockets) on type C 32 amp rcbo Some of my ZS reading exceed maximum ZS (0.55 OSG) ie:0.65 ohms . On a earth fault this will disconnect via the MCB part of the RCBO. How can i ensure a LINE to Neutral fault will still disconnect?
  13. Bradmarsh

    No power but RCBO has power.

    HI guys, I have an odd problem. I haven RCBO that did trip, I have found the reason and corrected it. However, when turning the RCBO it stays on, it has power yet it does not seem to provide power to my light. this is for a lighting circuit only, so there are no power points to remove things...
  14. R

    What Crabtree type RCBO fits this board?

    Hello guys, completely forgot to remove the board cover to check what type of rcbo was required for this particular Crabtree board. Anyone from experience know which type RCBO fits? thanks in advance!!
  15. B

    TN-C-S (PEN) RCBOs Discussion

    I'm currently planning for a CU upgrade on the domestic premises, and following previous advice on this forum, I was told that I should consider upgrading to a Type A RCBO CU. I have been doing a bit of reading and came across some confusing information, stating that an RCD would not work on a...
  16. M

    Square D SQOR RCBO replacement?

    Morning all, Does anyone know if there is a replacement part for this discontinued one? I’ve seen some second hand ones floating about on eBay, but if I can’t find a brand new alternative then I’ll have to change the whole board. I’ve sent Schneider an email almost a week ago and still haven’t...
  17. P

    What cable size and breaker would I need for two extractor fans in a public toilet? 1.5mm 3 core and a 20amp rcbo?

    What size cable for 2 extractor fans in a public toilet?
  18. D

    Oven RCBO tripping

    I've just installed a new kitchen consumer unit with RCBOs. The client says the oven RCBO is now tripping when it cools down. Any ideas what could be causing this?
  19. R

    If all circuits are rcd or rcbo protected max current 150mA why do you still have to install 16mm earth

    THIS IS FOR ELECTRICAL NEWS ONLY
  20. i=p/u

    Rcbo replacement fuse board

    a fuse carrier is broken in 6way mem board with no rcd protection , it makes sense to upgrade to rcbos like other boards in the installation.. My question is , I'm nearly certain there is borrowed neutral on the lighting circuits and he won't want a wire fitted from kitchen to landing to...

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