Specifications uint BX1-200 BX1-250 BX1-315 BX1-400 BX1-500 BX1-630 Power source voltage V 380 380 380 380 380 380 Phase 1 1 1 1 1 1 Rated input capacity KAV 15 18.5 22.5 32.5 42 51 No-load voltage V 66 66 76 76 76 76 Rated welding curent A 200 250 315 400 500 630 Curent adjusting range A 50-200 60-250 60-315 80-400 100-500 125-630 Rated duty cycle % 20 20 35 35 35 35 Insulation class FCooling mode Forced-air coolingDia of applicable electrode MM 2.5-4.0 2.5-5.0 2.5-5.0 2.5-5.0 3.2-5.0 3.2-10 Dimensions CM 65*42*70 65*42*70 64*48*74 64*48*74 66*52*84 70*56*94 M3 of each M3 0.1911 0.191 0.227 0.227 0.228 0.369 weight KG 65 88 114 120 140 165