Using MCB's in parallel to give local isolation

[FatBob]

What about replacing the 2 MCB's with a Mains switch like this TLC hyphen Direct/Products/CM9100.html to feed into the new CU.



Thanks for all the feedback, it is appreciated.

 

[malcolmsanford]

537.1.4 A main switch .. shall interrupt both live conductors of a single-phase supply

"A main linked switch or link circuit breaker"

So you could have a double pole switch, a double pole RCD or a double MCB, agree most domestic CU have a double pole switch 100amp switch, but if you wanted to make a board and use a MCB then you can

 

[FatBob]

Thanks for all the replies. I went with 2 circuits, one off each MCB on the basis that anything else could lead to identification problems. Will change it when DNO eventually calls me back to arrange an isolator and upgrade of the metal fuse casing from the early 18th century.
Still waiting.......
Still waiting.......