240V split phase inverter

theoldwizard1 wrote:
Does such a thing exist ? Yes, I want L1, L2 and neutral.

What are you trying to accomplish? Even the expensive Large motorhomes will have 2 or more 3000 or 4000 watt Inverter/chargers. They may even be 24 volt, but still use the same 120 inputs. Not Split (out of phase) that is 50 amp service. Doug

Don't know what his intent is. But a split phase system can use a common neutral wire that is the same size as each hot wire. A system with two hots in phase trying to use a common neutral would need a neutral wire with twice the ampacity rating of the hot wires.

The Xantrex Freedom SW series will do stacking-

Xantrex wrote:
Parallel stacking enables the Freedom SW inverter/chargers to double the AC output in inverter mode. Series stacking enables the Freedom SW inverter/chargers to generate 120/240 V split phase output²

² AC source must be split phase, requires Stacking Cable (part# 808-9005)

120 ouput. Center tapped boost transformer. 2Kw about 30 Lbs. Transformer.

I use a Schneider SW4048 at my offgrid place. Super nice and very easy to use. Pretty affordable compared to their XW series.

http://www.wholesalesolar.com/2430045/schneider/inverters/schneider-sw4048-sw-na-charger-inverter

Most split phase inverters are 48v or 24v. It may be hard to find a 12v model. Magnum, Outback, and Xantrex/Schneider/Conext all make them.
You may have to use 2 120v models and stack them with the appropriate cable and interface.