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EICR Codes for Consumer unit door not closing

Former Community Member
Former Community Member
I am working on a MK plastic consumer unit and trying to work out if I need to replace it. The problem that concerns me is that the door just covering the fronts of the circuit breakers will not stay closed and remains all the way down or with a 10mm gap at the top.

Looking at the NAPIT EICR code breaker section 4.5 a crack in the access flap would be a C3. There is no indication of how to code a missing or open access flap.

In my mind the risks are dust in the circuit breakers, could also be accidental operation of the circuit breakers(although unlikely in it's current location; I did consider fitting a latch but looks like they are no longer available.


Would appreciate your views on is this a C2 and I need to replace or a C3.


Thanks


Alan
  • I can't see which BS 7671 reg the lack of a flap would contravene - presumably the enclosure still meets IP2X with the flap down and the upper surface meets IP4X. Dust mostly falls downward (hence the IP4X requirement for top surfaces only) rather than travelling horizontally so unless it's an unusually dusty environment I don't foresee a problem there.


    I think the old wylex CUs used to have a warning to ensure the cover was in place over the rewireable fuses - as the semi-enclosed carriers could let some arc products escape during a fault - but I don't recall any similar warning on modern MCB CUs.


    I think I'd go for just a comment.


       - Andy.
  • Former Community Member
    0 Former Community Member
    Andy thanks for your thoughts
  • Agree unless the location is in some way especially hazardous, perhaps subject to spray or a lot of dust possibly flammable (like barns full of hay or a flour mill perhaps) Then the containment is needed, and a properly  sealed CU.

    The actuator side of the  MCBs are supposed to be accessed safely while energised , so the CU cover is mostly cosmetic - the old hot wire fuses you were supposed to turn off the main switch and not push a  new one in live, as if it blew again, you could be holding it at the time.

    For MCBs resetting onto a fault is expected to fail gracefully. And actually plenty of us did push fuse holders in onto a live board, and very rarely did it do anything more than be a bit alarming.

    Even the C3 seems a bit steep for something that is probably not required by regs.

    M.
  • It gets a C3 for being plastic. I cannot find any requirement to have a cover or door in BS EN 61439-3, so no more than that.
  • In my experience I have not found any safety issues with the absence of plastic DB covers and have previously recorded such as a C3 classification, as it would not be assembled as the manufacturer intended.

    For inspections carried out after 1st January 2016 -presence of a consumer or similar switchgear made from combustible materials (e.g. plastic) that is not inside a non-combustible enclosure and which is:
    • Located under a wooden staircase, or

    • Within a sole route of escape from the premises

    Would warrant a C3 improvement recommended.
    If unsatisfactory connections were found a C2 classification would be warranted.

  • Former Community Member
    0 Former Community Member
    Thanks everybody for the help, it confirms what I was thinking but I wanted to check as I have limited experience.