I am putting together a grid-parallel ESS system using a Mutiplus II 5000/70/50 unit plus a 460Ah 48V LiFePO4 battery.
I only have one mains connection to make to the buildings existing consumer unit.
Should I be using the AC IN 1 or AC OUT 1?
I have tried both. When using AC IN 1 the startup is less dramatic, I presume there is inrush current limiting on AC IN 1? Using AC OUT 1 the MCBs are prone to tripping initially, it takes a bit of coaxing to get it to start up.