Harry asked: I am now installing my home power backup system, and using a Quattro 48/3000/35-50/50 120V, with a 10kWh AGM battery. In the configuration I am planning, the grid input will be on AC in 1, and the backup subpanel will be fed from AC out 1; a generator will be connected to AC in 2. With the current configuration, the Neutral of AC in 1 will be tied to the Neutral of AC out 1. Is this OK, or will it confuse the current measurement on AC in 1?
Johannes replied: No thats not ok, the neutral In/Out need to remain isolated
Harry asks: Can you please explain why they need to be isolated?