Setting the facts straight on the MPP LV 6048:
These units output 120 AND 240 with one AIO unit.
The max output is 27.3Amp x 240 Volts is 6552W
Each leg (L1 L2) are limited with one AIO to 3225 W Continuous, short surges over this.
The cost of a MPP 6048 from Maximum Solar is $943 USD each plus applicable taxes & shipping.
You can also purchase from Ian at Watts 247 for a bit more, but also get his assistance support when needed. (likely well worth it).
The MPP 6048 is capable of being set for 120/240 or 208-three phase (with three units) or 120 120 (full 6552W single phase) if desired.
Up to three units can be set parallel for 27.3 x 3 = 81.9Amp 240 Volt split phase.
A single 6048 is best run on at least 200Ah battery, and add another 200Ah (min) for each additional AIO, to get full capacity out of the unit.
The input and output terminals are all set up in groups 4, ( G L1 L2 N ) making connection to a sub panel a breeze.
Internally each MPP 6048 is TWO inverters identical, set side by side, each with 27.3A continuous output capacity, in split phase each outputs one Leg, with a max output per leg of 27.3 x120 v = 3276 continuous.
Each AIO has two MPP inputs for PV but limited to 145vDC and 4000W. ( Run my strings at about 90 volts to allow enough head room for minus 30's
The MPP 6048 has slightly higher standby current than the 6548. which is due to the twin inverters side by side draw more power to both run.
None of the above is guessing or speculation, I have two units, first since Feb 2021. They run my business 100% off grid (for good) and run about 60 % of my home which is next door, soon to have a third MPP6048 which will take the rest of the house off grid expect during Nov-Jan when I just get too much overcast weather.
My back up genset is a 8kW Champion Cheapie and the Inverters never have any issue accepting the output power to charge up batteries when grid is offline.
Edit: for those addressing Ground-Neutral issues, the MPP 6048 has TWO N-G screws, easily removable. In place the Screws connect N-G during battery inverter operation, removed they do not connect N-G.
I don't have the LVX 6048 LF inverter, I did a lot of research before selecting the LV6048 over it, since my business does need to start some good sized motors, although only occationally. The LVX HAS a big ass transformer mounted right at the top - look up videos by Will and by Ian and you can see them open the case, there is the transformer. Both videos also note the super high standby power consumption that was just way too much for me to accept.
If a newbie needed a small inverter up to 6.5kW for all 120v or a mix of 120/ 240 modest loads in a camp, I would recommend they consider the MPP 6048 as a very low cost, but reliable AIO, easy to connect to a subpanel, capable of split phase right out the box with a single unit costing less than a grand, capable of expansion up to three units if desired in future.