Wineguy
New Member
I have an off grid cabin and am getting ready to install a new 48V solar system using a 4 panel array, EG4 AIO 3kW inverter and an EG4 LL-S 48V LFP battery. My question is concerning wiring a 2 circuit single phase main lug load center taking power from an EG4 AIO 3 kW inverter. The load center will only have one 15 amp circuit to power lights and a few plugs in an offgrid cabin (the only AC power is coming from the inverter via the load center).The EG4 manual says that the inverter AC input and output should have a 30 amp breaker and the inverter is grounded to the inverter cabinet. Can I bring in power from the inverter to a lug on one side of the load center and connect to a 30 amp breaker (using it like a main breaker) and then run a wire from the 30 amp breaker out to the lug input on the other side of the load center and then attach a 15 amp breaker to that side of the panel. (see drawing) In essence, instead of running a jumper from one lug to the other side lug and energize both sides of the panel I would like to use the 30 amp breaker as a main breaker and only energize one side of the panel from the inverter and then use the 30 amp breaker to energize the other side of the panel. Also, I am understanding that I need to separate the neutral bus and the ground bus. Is this correct? I plan to run an earth ground wire from the ground bus to a ground rod. This is the only grounding in the system. My 4 solar panels will be installed in series mounted on a metal roof. I plan to ground my solar panel series array with a separate earth ground rod. Should/could I use one ground rod for both or should they be separated and use 2 separate earth ground rods? Thanks in advance for any help!