RCD protection in a warehouse

J.C.E · Jan 10, 2019

Is there such thing as a three phase RCBO??!

Needing to install a three phase circuit for a 8kw three phase heater- connection by a 20a comando

I want to use the metal trunking I will be installing for various 13a sockets- so the circuit doesn't need the rcd protection- but i beleive the 20a comando will..

It will be a new hager TPN dis board

so hows best to get fault and additional protection in TP setup?

Dave OCD · Jan 10, 2019

I did similar a while ago and used a 3 phase MCB at the DB then an enclosure with a 3 phase RCD and 32a socket 'all in one' at the other end but mine was in SWA .

DPG · Jan 10, 2019

I'm going to get some right stick if I ask what a warhouse is. So I'm not going to do it.

Yozza19 · Jan 10, 2019

Use a rcd 32ah 5 pin socket g wiss do a good 1 if rest is in trunken

Dave OCD · Jan 10, 2019

Well I'm hoping he means a warehouse and not another similar worded 'house'.

KEV 1 N · Jan 10, 2019

This any good?

MK K13435 3phase 415V 5pin with 40A RCD, Commando 32A Socket Rated | eBay - https://www.ebay.co.uk/itm/MK-K13435-3phase-415V-5pin-with-40A-RCD-Commando-32A-Socket-Rated/323637491756?hash=item4b5a4c382c:g:4yEAAOSwQwRb6CsX

snowhead · Jan 10, 2019

DPG said:
I'm going to get some right stick if I ask what a warhouse is. So I'm not going to do it.

Ah, Gowon Do It.

Dave OCD · Jan 10, 2019

Yozza19 said:
Use a rcd 32ah 5 pin socket g wiss do a good 1 if rest is in trunken

Are you Buzzlightyear in disguise ??

GMES · Jan 10, 2019

DPG said:
I'm going to get some right stick if I ask what a warhouse is. So I'm not going to do it.

Dave OCD said:
Well I'm hoping he means a warehouse and not another similar worded 'house'.

You guys need to go to spec savers.

Dave OCD · Jan 10, 2019

No it's been edited, it initially said Warhouse, 100% certain.

telectrix · Jan 10, 2019

KEV 1 N said:
This any good?
View attachment 47071

MK K13435 3phase 415V 5pin with 40A RCD, Commando 32A Socket Rated | eBay - https://www.ebay.co.uk/itm/MK-K13435-3phase-415V-5pin-with-40A-RCD-Commando-32A-Socket-Rated/323637491756?hash=item4b5a4c382c:g:4yEAAOSwQwRb6CsX

take your camera to specsavers.

tlangdon12 · Jan 11, 2019

You can get 3 Phase RCBOs. See Acti 9 iC60 RCBO (2P, 3P, 4P) | Schneider Electric - https://www.schneider-electric.com/en/product-range-presentation/64209-acti-9-ic60-rcbo-%282p%2C-3p%2C-4p%29/

J.C.E · Jan 11, 2019

tlangdon12 said:
You can get 3 Phase RCBOs. See Acti 9 iC60 RCBO (2P, 3P, 4P) | Schneider Electric - https://www.schneider-electric.com/en/product-range-presentation/64209-acti-9-ic60-rcbo-%282p%2C-3p%2C-4p%29/

I tried looking for a hager one- but couldnt find one

LeeH · Jan 11, 2019

How do they work with no neutral in use?

LeeH · Jan 11, 2019

Just Googled it...obvious really.

If it helps another divy the same current has to return through another phase if no N.

Andy5678 · Jan 11, 2019

Hager do a 3 phase add on block. It joins round the MCB

Worked well for me.

J.C.E · Jan 12, 2019

and with changing the dis board- i am guessing I need to a 4pole SPD even more so with 18th edition out

I will be installed a hager 12way

Technical Properties SPN415D - https://www.hager.co.uk/product-catalogue/energy-distribution/protection-devices/surge-protection/surge-protection-1-2-4-pole/spn415d/91521.htm

where does the spd phycially go?- guessing not inside the dis board as it could do in a single phase consumer unit after the main switch and a 32a MCB

cheers guys

Flanders · Jan 12, 2019

Could you not fit a 20 amp isolator instead and hard wire the heater in , then you would not need the rcd ? Failing that you could get your customer to do a risk assessment and omit the rcd