Rednecktek
Solar Wizard
A 3048 or the EG4 are both single leg inverters and would only need a 120v generator supply to get AC pass-through. It's when you step up to the dual-leg units like the 6048 that they start calling for a 240v generator supply. Having multiple 3048's or EG4's in parallel lets you just feed a 120v generator into a single unit and not need a 240 supply as one inverter will do all the AC charging.
Basically, if the AC Out terminals are L1 and N it's 120v generator. If the unit has a L1, L2 and N then you need a 240v.
Basically, if the AC Out terminals are L1 and N it's 120v generator. If the unit has a L1, L2 and N then you need a 240v.