particulars units wr20td wr30td wr40td wr60td input supply volts 415 v, 3 phase, 50 hzs. ac open circuit voltage (ocv)(max.) v. dc 80 90 welding current range with low & high range selection amps. dc 30 - 200 30 - 300 40 - 400 60 - 600 max weldingcurrent @ 60% duty cycle amps. 200 300 400 600 rating kva 17 22 30 45 current regulation type amps. stepless (remote optional) insulation class h (copper wound) cooling forced air cooled max. dimensions (approx)(lxwxh) mm 870x510x895 940x605x940 1030x650x995 weight without remote (approx) kgs. 190 225 240 350 confirm to is – 4559 -