weldingmachine weldingmachine , welding machine , welding machine ( 600 amp. ) specification / technical data main voltage- 415 v / ph, hz – 3.50 / 60, effective input current a-34, open circuit voltage, v ( without vrd ) -82 open circuit voltage, v ( vrd activated ) l-26 output current range, a 50-600. maximum load at 60% duty cycle, a600 maximum load at 100% duty cycle a520 power factor at full load-0.93 efficiency max. 85% operating temp. - + 10 to+40enclosure class – ip21sinsulation class- h make- ewac / all approved makes , igbt based inverter power ) welding machine ( 400 amp. ) specification / technical data:- main supply, v / ph, hz -415 / 3.50 rated input capacity kva- 24 permitted load at 60% duty cycle, a – 400, permitted load at 100% duty cycle a-310, power factor ( max. ) -0.99 efficiency at maximum current %85 current range a- 30-400 open circuit voltage ( ocv ) , v-72 reduced ( vrd ) , v- l26 enclosure class- ip 21s insulation class- h cooling – forced air, hot start- adjustable, arc force- adjustable make- ewac / all approved makes.