... output current (A)250Current range (A)70-250Insulation classFApplied welding rod (mm)2.5-5.0Duty cycle (%)20Dimensions ( ... structure;220V/380V input connection, with switch to adjust output voltage, easy to operate and adjust;Suitable for welding ... small work pieces, small size, light weight, easy to carry;Suitable for welding median small workpieces. BX6-250 Portable Ac Arc Welding Machine ...