- Main voltage ±10%: 3 x 380 ~ 460V- Main voltage frequency : 50/60Hz - Cos phi : 0.99 - Welding current range(continuous): 3 - 320A - Welding current : 10min/40℃ 40% d.c(320A) : 10min/40℃ 100% d.c(190A)- Open-circuit voltage : 70V - Operating voltage : 14.2 ~ 30.0V - Protection class : IP23 - Type of cooling : AF - Insulation category : F - Weight : 34.6kg - Dimensions I/w/h : 625 x 290 x 475mm - Marks of conformity : S, CE, CSA