Distribution Board additional MCB or RCBO

[IanNE]

I've added the below photo of a wylex consumer unit.

How would the configuration be changed to add either an unprotected MCB or an RCBO. Is it a case of modifying the busbar or adding a separate feed wire for the standalone mcb/rcbo.

Untitled

• IanNE
• 23 Nov 2013
• 1

 

[Adam_151]

That board does not have any free capacity. Yopu would have to remove an existing circuit to add another.

There are no none RCD protected ways, so an RCBO is pointless

What is the new circuit for? who fitted the board with zero free ways?

 

[IanNE]

Hello Adam thats an example picture and I have the same board but with free ways available.

I wanted to add either x1 unprotected MCB or RCBO.

So a suitable MCB/RCBO would need to be fitted although unprotected. Could a jumper be used, or am I missing something easier than modifying the busbar?

 

[ericmark]

You can get boards with one, two, or three neutral bars designed for all RCBO, twin RCD or twin RCD with RBCO's the only option with two neutral bars is to have one with RCD and the other all RCBO's so 5 MCB's could be changed for 5 RCBO's or even 7 RCBO's as the RCD could be dispensed with however looking at that board not sure if there is room to fit any RCBO's as they are longer than MCB's and not sure they will physically fit.

The real point is if you have to ask have you got the skill required?

 

[ericmark]

Hello Adam thats an example picture and I have the same board but with free ways available.

I wanted to add either x1 unprotected MCB or RCBO.

So a suitable MCB/RCBO would need to be fitted although unprotected. Could a jumper be used, or am I missing something easier than modifying the busbar?

As I said can't all one it's a case of changing all on one RCD to RCBO's or nothing if they will fit. Either change RCD for isolator or reconfigure board but if you have to ask then you have not got the skill required.

Remember any RCD device fitted into a board needs testing and I don't mean pressing test button. You need special test gear which from questions you ask I would guess you don't have.

 

[Taylortwocities]

Post a photo of the actual board. Then you'll get some helpful suggestions.

 

[knowall]

You must me kept busy !

 

[ban-all-sheds]

IanNE seems to be making a habit of asking questions which show that he is not competent to do the work he thinks he should be doing and then getting bent out of shape when he gets the appropriate responses.