because that is the power cycle for ac, which runs at 240v for the most part, I think in most cases in the US I would say it was a by-gone era of DC power plant generation before AC was a standardised for use throughout the states..

I also the the reason 120v is pushed so much because you can hold more people on it..

as for 3-phase it depends on the connector used, which depends on the current you get..

3-phase wiring is usually a 4 pin setup, using 2 pos, 1 neg and 1 ground.. now gow much current you get will depend on how big the cable is..

getting back subject I was saying what i was saying because the documentation so far is still only stating 115-120v not 115-230v or 120-240v..


being in a country where your on 240v AC I prefer the unit support to 240v where possible, i don't like having to run power converters just so i can run 1 piece of equipment...