RCBO's on a TT system.

rich.250 · Apr 10, 2016

I believe the hole in the bottom where the fly lead comes from is insulated similar to the 4 mod eaton 3phase rcbo.
It definitely looks like it from the catalogue page here:
http://www.luckinslive.com/product/386509034/Hager-Ltd-Energy-Distribution/ADA916U

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Risteard · Apr 10, 2016

Leesparkykent said:
I was just looking at meteor electrical at garo RCBO's. Do you know if they make an amendment 3 enclosure out of interest? If im correct I think they may come from Ireland? at Garo 16 Amp 30mA 1 Module RCBO Type B| MeteorElectrical.com

I'm not sure if they do an Amendment 3 type enclosure (I doubt it).

AFAIK Garo is a Swedish company, although they do have a base (possibly manufacturing) in Dublin as well. The Garo stuff here all seems to come from Dublin.

Garo gear is never really seen in the north here, but is fairly common in the south.

Midwest · Apr 11, 2016

mattg4321 said:
Not sure what you're getting at but I'll try! Yes there would be an s type rcd front end, but if you were to get a n-pe fault on either of the outbuildings it would trip the whole installation (including main house) if you used solid neutral rcbo's.

See your point now, you've have a can of worms there. Think the problem, is the availability of DP RCBO's, although some have been highlighted. Guess that's done to the introduction of reg 42.1.201, even SN seems a bit sparse. It's fine if you use a particular manufactured product regularly (don't understand why the other manufactures don't do DP/SN), but if the product is not easily available, is a bit of a nightmare if they fail, if you get my drift.

mattg4321 · Apr 11, 2016

Exactly, I'd rather stick to Hager - something I know and trust to be honest.

Might give them a call and enquire about the SP+N RCBO. Maybe the busbar prong goes up into a blank chamber behind the N flying lead as rich says. If not I'll pop into the job and look into the outbuildings properly and see if theres a way I can get a 30mA RCD in each of those.

Risteard · Apr 12, 2016

mattg4321 said:
Exactly, I'd rather stick to Hager - something I know and trust to be honest.

Might give them a call and enquire about the SP+N RCBO. Maybe the busbar prong goes up into a blank chamber behind the N flying lead as rich says. If not I'll pop into the job and look into the outbuildings properly and see if theres a way I can get a 30mA RCD in each of those.

I have quite a few two module Hager RCBOs. I believe they do a phase & neutral busbar, although often they would just be wired.