Mode lArc-120 Input power voltage(v)1-220¡à10% Efficiency(%)87 Power factor(%)0.9 Rated input power capacity(kva)3.7 Max no-load voltage(v)68 Output current adjustment range (a)20-120 Suitable diameter of rod(mm)1.6-3.2 Rated duty cycle(%)(40¡æ, 10min)30 Insulation classF Protection classIp21 Weight(kg)3.8 Dimensions (mm)273x115x180 273x115x180mm, weight is 3.8kg