Can you take 2 phases to a consumer unit?

[mossep]

Assuming it’s correctly labelled I see no reason why not. 1, 2 or 3 phases are all under 1000v, and the main switch itself is rated at 400v. Proteus used to make a 3 phase busbar for their single phase fuse boards so they could be used for that purpose, I assume it’s still available.

 

[Gigsy]

Why? you might wish to improve your installation skills Gigsy. The top fixings are desgnedto be proud and not screwed tight until the Unit has been sited on the wall, and then and only then should they be screwed up tight along with the bottom fixings.

I have the installation manual. It is a ---- design I know, but you can not get a screwdriver in to tighten the top two screws. It is designed so that you hang the board on the top two scres then tighten the bottom screw. It says exactly that in the installation manual. I will bring it home tomorrow and scan it to show you.

 

[Gigsy]

You should consult Contactum technical support, by email, and see that they say.........

I will do that, I will get the model of the board tomorrow and send them an e-mail. Thank you.

 

[Gigsy]

Assuming it’s correctly labelled I see no reason why not. 1, 2 or 3 phases are all under 1000v, and the main switch itself is rated at 400v. Proteus used to make a 3 phase busbar for their single phase fuse boards so they could be used for that purpose, I assume it’s still available.

Thank you very much

 

[Gigsy]

Why? you might wish to improve your installation skills Gigsy. The top fixings are desgnedto be proud and not screwed tight until the Unit has been sited on the wall, and then and only then should they be screwed up tight along with the bottom fixings.

On this board you can't get the screwdriver in. It is a very bad design and the installation manual states only to tighten bottom screw. I will scan the manual tomorrow and show you. I will tighten the top two screws tho. But it is designed for them not to be tightened.

 

[Octopus]

I will do that, I will get the model of the board tomorrow and send them an e-mail. Thank you.

Nice one matey.

Would you please share what they say .................. this has been an interesting thread ........... so far

 

[Corbs]

So there not lower than the earth and neutrals bars

 

[Pete999]

top two are not meant to be tightened

Why?

 

[mossep]

In 22 years of being an electrician I have never come across a fuse board that I could not tighten the fixing screws in.......

 

[Pete999]

So this board can be used for a 3 phase 400V supply then?


The board is in a hairdressers, not a domestic premises. Why would a domestic installer be doing electrical work in a commercial building. The board is clearly identified with a 400V warning sticker (i may add a sticker saying isolate both switches) I am an electrical improver, I noticed the sticker. There are two switches with black and grey wires going to them and the switches are labled L2 and L3. You can not fail to realise there are 2 phases going to the board.

What makes you say the enclosure is designed for a single phase supply?

The consumer unit is modular, it is not designed for one switch. You can add another switch, it is designed so that you can add another switch.

As to your first question, there are many occasions where DIs get involved in instalations that perhaps they should leave alone.

 

[mossep]

If you really could not tighten them, use pan head screws and screw them back so they are nigh on flat against the wall, and then hang the board.

 

[mossep]

As to your first question, there are many occasions where DIs get involved in instalations that perhaps they should leave alone.

What exactly is a domestic installer, it sound like an inexperienced electrician? Is it like having P plates on your car after passing a driving test

 

[Octopus]

back to the OP

The correct installation could so easily have been 2 x single phase boards with RCBO's

 

[Gigsy]

Nice one matey.

Would you please share what they say .................. this has been an interesting thread ........... so far

Yes I will, most certainly

 

[Gigsy]

So there not lower than the earth and neutrals bars

exactly, the screws are behind the bars at the top of the board

 

[Gigsy]

In 22 years of being an electrician I have never come across a fuse board that I could not tighten the fixing screws in.......

Very bad design i know

 

[Gigsy]

What exactly is a domestic installer, it sound like an inexperienced electrician? Is it like having P plates on your car after passing a driving test

Good point, I stand corrected. There is no such thing as a domestic installer, I guess. I was replying to another comment. I think we were referring to somebody unfamiliar with working on a 3 phase supply

 

[Gigsy]

back to the OP

The correct installation could so easily have been 2 x single phase boards with RCBO's

I agree, that would also have been a better design

 

[Gigsy]

If you really could not tighten them, use pan head screws and screw them back so they are nigh on flat against the wall, and then hang the board.

thank you

 

[westward10]

It does not require a 400v notice as the nominal voltage does not exceed 230v.