Thank you Binky, that's all I needed to know. So I can wire isolation switch up, to same orientation making a neater install as able to use the DP busbar.
Then if terminal 1 is live, then that busbar will not work as the isolation switch is not the same orientation as the RCBOs.
So what is the beat way to go about wiring this unit.
I have bought 2 CPN Cudis consumer unit, a 4 way and an 8 way unit, which both came with a 100a isolation switch, I have also bought Cudis DP RCBOs 16a, type A, curve C, these are the 2 way type with no fly leads. I want to install these into my campervan.
I'm unsure which terminal are live...