Product Name: 380V/450A, IGBT Module DC Inverter Digital Nbc Welder Model NO.: NBC Type: Submerged-Arc Welder Work Form: Moving-Coil Electric Current: Inverter Frequency Range: High Frequency Style: Portable Cooling Way: Air Cooling Trademark: Alpha Transport Package: Paper Carton on Pallet Specification: 490*310*410mm Origin: China HS Code: 85153190 Product Description 380V/450A, IGBT Module DC Inverter Digital NBC WelderInput Power Source3P/380V 50/60Hz3P/380V 50/60Hz3P/380V 50/60HzRated Input Capacity25KVA35KVA51KVAInverting Frequency20KHZ20KHZ20KHZFloating Voltage80V80V80VDuty Cycle60%70%80%Voltage Range14-50V14-50V14-50VElectrode Diameter0.8-1.6mm0.8-2.0mm0.8-3.2mmEfficiency90%90%90%Insulation ClassFFF1.Input 110V/ 220V/ 380V.2.Inverter IGBT Technology.3.Digital display.4.Thermal protection, ARC force.5.Anti-stick,hot start.6.Portable.7.Smooth and stable ARC8.Excellent welding performance.