mdbalson said:Here's a other picture of a 3 phase DB (The 1st Floor DB of the S Block at college) (The 3 pole MCB is for the Ground Block DB)
This is a MEM DB, which uses Eton MCBs
P.S. John D this DB has a RCBO for the Cleaners Ring.
What size is that main isolator.If it is 100 or 125A then it seems a bit small to me when you consider the number of ring circuits on there, the 63A sub main and all the lighting circuits which will be on all together as it is a college.I hope the designer got his sums right.(or is it a 200A isolator?)