230/460 volt vac; 50/60 hertz; single or three phase; 210 amps at 28 volts at 60duty cycle for single phase; 300 amp a t 32 volt at 60duty cycle for three phase; stick; tig-high fre quency; lift start; scratch start; width 12 in.; height 20 in.; length 18.5 in.; weight 83.8 pounds