[chbot] OT: Low profile RCB

[Richard Jones]

Thanks Kay, Mark and Volker for the very helpful replies.

>From the dimension drawings that Mark pointed me to which I somehow
failed to find on my original search it does appear as though the DIN
rail approach could save me those precious mm. I can't see from the
catalogues whether I can get a cover for a DIN mounted RCBO to convert
it to surface mount.

I guess total DIN rail conversion would be nice, but a little
excessive. I did go the bathroom mounted rcd socket route in the last
place and the price made me wince.

I do have an ace up my sleeve which is to recess the mounting board,
but I may still be a few mm short :-(

Richard





On Sun, Jul 13, 2014 at 11:49 AM, Volker Kuhlmann
<list0570 at paradise.net.nz> wrote:
> On Sun 13 Jul 2014 05:38:32 NZST +1200, Richard Jones wrote:
>
>> We're in the process of a bathroom refit and our electrician proposes
>> bathroom socket outlets protected by a 16A/30mA RCBO in the fusebox.
>> However the old style fusebox has a rather nice rimu wood enclosure
>> and does not have the depth to fit the Schneider DOM19803 RCBO which
>
> From a photo in a Schneider PDF catalogue the DOM19803 seems to have the
> (sideways) profile of all DIN-rail mounted MCBs, switches and RCDs
> (though I have RCDs where the test button sticks out to the front, being
> pushed in when closing the door on some switchboard boxes - solution,
> move it along the rail). DIN-rail is it these days, everything else is
> vastly inferior. The real solution is to fix up your whole switchboard.
> Understandably, you'll be reluctant to do that... ;-)
>
>> Can anyone suggest a low profile range of surface mounted RCBs and
>> MCBs and where to get them? Something around 75mm depth or less would
>> be ideal.
>
> You have surface-mounted ceramic-base holders designed for fuse-wire
> inserts? If so, any change to the fixed wiring downstream of the
> fuse-wire requires the fuse-wire be replaced with a proper circuit
> breaker. Additionally, wet room alterations require RCDs to be fitted to
> those outlets. (Both good requirements!)
>
> Check the supply side for those MCB/RCD combinations, but they are
> pretty special and space will be a problem. The main brands in NZ are
> Schneider, Hager, Merlin, and probably a few others. I was never much
> impressed by any of the local electrical shops and got better response
> from kiwisparks.co.nz, electricaldirectltd.co.nz
> Perhaps Hager MRRHA20
>
> As pointed out, you can get wall outlets with integrated RCDs, expensive
> and you have to buy one RCD per outlet, but it might suit you. I don't
> think they have a breaker, but perhaps you can fit just a breaker into
> your switchboard easier than the combo.
>
> HTH,
>
> Volker
>
> --
> Volker Kuhlmann
> http://volker.top.geek.nz/      Please do not CC list postings to me.
>
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