John Rumm wrote:
zymurgy wrote:

Some CUs come with a link wire between the neutral bus bars. You need to
remove that when using it as a split load unit.


Hmm, how do you get a neutral feed to it then ? do split CU's have
separate incomers/isolators per side ?

I thought it had a single isolator and separate RCD.

Does it need a dedicated tail per side in this case ?

I can't envisage it as I don't have a split load CU.

Live and neutral tails come into the incomer, thence go to the primary
neutral and phase bus bars. The RCD normally sits in the middle of the
CU and is fed both live and neutral from the primary bus bars (or
sometimes dedicared cables inside the CU). The RCD in turn feeds a
second live busbar for the protected MCBs and a separate neutral bus bar
for the protected circuits.

Aha, thanks, got it.

So not shared neutral, isasmuchas the main neutral is fed via the RCD.
But with only one isolator.

Cheers

Paul.