[chbot] OT: Low profile RCB

[Mark Beckett]

Richard
Firstly one hopes you don't have arcing in your switchboard, otherwise 
you are in trouble....
Ever socket I know is mounted onto the studs which are generally wooden 
... so same scenario.

There are Merlin Gerin RCCB and the ones I have (23358) are 75x 80x35 
with a small increase due to the din rail. (similar to single phase 
isolator)
http://www.schneider-electric.co.nz/documents/support/electrical-distribution/Multi_9_brochure_low_res.pdf
Dimensions are on page 25 of this
http://www.pdl.co.nz/brochures/SuperboardSeries.pdf


Electrical Supplies (Langdons Rd) had them and last price was $40 or so 
.... (several years ago but significantly cheaper than the $110 normally)
You would need a 16A circuit breaker for the bathroom feed, but you 
should have room with this version.


There are RCD power outlets, as Kay suggested.
There is also a PDL plate mounted RCD


You might want to ask about them instead.

Mark



Richard Jones wrote:
> Maybe someone can help me out with an off topic electrical wiring
> question about residual current circuit breakers with overload
> protection.
>
> 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
> is massive at 90x130x50mm and will not allow the door to shut. The
> proposed solution is to enlarge the box. I suspect that there is a
> cheaper and more attractive solution.
>
> 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. When the fusebox only contained an isolator switch and fuses
> there was plenty of space.
>
> To be honest I'm a little suspicious about the use of a wooden box to
> satisfy AS/NZS 3000:2007 Section 1.5.8 "Protection against thermal
> effects in normal service. Electrical installations shall be arranged
> so that there is no risk of ignition of flammable materials because of
> high temperature or electric arc in normal service."
>
> Suggestions anyone?
>
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