how to put rcd and rcbo in Paul consumer unit

Looks fine Rob.


Gary

even though the live and buzz bar go into one connection?

Yes, if the bar is on the solid side of the cage terminals so it doesn’t twist when you do them up.

If you can cover the live exposed bus , that would be greatly appreciated by the next person to open it... I'm a bit surprised there is no plastic cover supplied with it, most makers these days supply the bar ready dipped.


More generally, not just this case, the important thing is that the RCBO gets its supply L and N from  after the main switch and before the RCDs (i.e. same place the RCD gets L and N), and that the connections are not mechanically stressed - how you achieve that will depend a bit on available terminals and capacity. If  you ever find you have to use wire links, then if need be DIN mounted terminals exist that can be added to provide  secure anchor point. If the RCBO is 32A, then its L and N tails that supply it could be as small as 4mm, making it easier routing.

I'm about to type up some landlords EICRs, the one job I did the repairs whilst I was there. 


The flats were only converted five years ago and they have MK consumer units with steel enclosures, bought as preassembled kits. 


I had to replace one of the two RCDs. This only had the busbar in without any additional cables,  so you are right to be cautious. 


I had to straighten the busbar as it had a significant bend in it, this is a 63A and I replaced it with a new 80A I had on my van. 

Although only five years old this installation needed remedial work some of which was because it was obviously never tested.

It's easy being an electrician,  all you have to do is join three wires together. 


I spent several hours fault finding and correcting terminations along with other bad workmanship. 


And of course doing a landlords EICR in a five year old flat is just a box ticking exercise!

Rob, if that's your own house consider swapping one or both of them the RCDs out for 100A 30 mA  Type A and putting the supplied RCDs on EBay. 

https://www.screwfix.com/p/british-general-100a-30ma-dp-type-a-rcd/101hv