Migatronic MIG 300 - 3ph/1ph or both?

[steviec_lj]

Looking at an auction closer to home, they have one of these in, along with a Migatronic TIG, but that is unfortunately 3ph only.

Question is, can the MIG 300 be run on 3ph and 1ph or simply just 3ph?

http://www.ebay.co.uk/itm/MIGATRONI...=100011&prg=10285&rk=4&rkt=10&sd=300867433239

Not the actual welder I'm looking to bid for, but otherwise identical.