- Reaction score
- 1,074
You ought to check whether the busbars are actually correctly connected to the lines and neutral but it is the tap off box which is incorrectly wired to the busbars ie: Black, Grey and Blue (- if Brown is correctly terminated you would expect to see the Black on the second from left and then Grey which your image does not show ). The isolator might be switching the neutral feed which is not intended. You'd get some odd voltages if this was the case AND A DANGEROUS SITUATION.
The last job i was on had some crappy legrand busbar system installed throughout the multi story carpark and main building. The connections were, L1-N-L2-E-L3 Where the SWA,s terminated in to the feeder box for the busbar.
I have looked online but cant find the same busbar.