3 pole mcb

[Anthony16090]

Good morning,

Quick research question, can you use a triple pole mcb to power 3 different socket circuits in a factory, helping out the maintenance bloke never heard or seen it before ????

 

[Spoon]

No. If there is a fault on one circuit you do not want the other two circuits going down.

 

[westward10]

This is common practice for large scale lighting, why can't you change the triple pole for single pole devices. I can't see a reason why you cannot but as Spoon says a fault on one you lose the others. If you can't change the triple pole you could run the sockets from a triple pole and neutral switch-fuse.

 

[Anthony16090]

Thanks for the replies, after questioning the way it's been done, the reply was if you take the pin out linking the switch at the front it then becomes 2 singles. But surely it's linked somewhere inside ???

 

[westward10]

Thanks for the replies, after questioning the way it's been done, the reply was if you take the pin out linking the switch at the front it then becomes 2 singles. But surely it's linked somewhere inside ???

Yes they are.

 

[Spoon]

Just tell the maintenance bloke to do whatever he wants then and walk away. Some people you cant help.

 

[westward10]

Why do you need to know, are you doing an EICR or have you just got into a debate with him about it.

 

[Anthony16090]

I just said about the fact there was a about 60 metre extension cord plugged into a socket and then another 20 metre extension plugged into that extension, was thinking it was not safe.
And the fact that in between the two there was a consumer unit and if any spare poles in the consumer unit would be safer wiring direct and adding sockets ????

 

[westward10]

Sounds like a typical factory, I wouldn't get too involved unless he specifically asks you about them.

 

[gaz76]

could you not just replace the triple pole with 3 single pole mcb

 

[Deleted member 26818]

Seen this done before.
Don't know whether they are linked inside.

 

[Spoon]

Come on then OP.. What was done?