*Minimizing, Lightness, high quality and energy-saving *Good arc-starting and arc force it can be resist disturb *High welding quality, strong strength. *Stable arc and little splash *Auto protection of over-voltage and over-current *Suit for welding all kind of basic welding rod Model: ARC250 Input Power Voltage(V): AC380+/-15% (Three phase) Rate Input power capacity (KVA): 9.4 Input voltage frequency (Hz): 50 / 60 No-load Voltage (V): 56 Output current range (A): 20 - 255 Rated output voltage (V): 29 Duty-cycle (%) 25 : 60 No-load Loss (W): 60 Efficiency (%): 85 Power factor COS: 0.93 Insulation class: F Weight (KG): 17.5 Protection class: IP23 Diameter of rod (mm): 1.6 - 4