Parallel EG4 connection to load center

[Tedford]

I have 3 EG4 6000ex 48V inverters to connect in parallel. Will I create problems if I connect the L1, L2, and neutral wires to buss bars and then send a single L1, L2, and neutral from buss brass to my load center.
If so, would it be allowable to connect a subpanel from those buss bars or do I need to power the subpanel through my load center.