The Telwin MasterMIG 400 is a high-capacity three-phase welding machine designed for demanding industrial and professional applications. It operates on mains voltages of 230V or 240V with a frequency of 50/60Hz and offers a broad current range from 50A to 400A. The machine can deliver a maximum current of 400A at a 25% duty cycle and a stable DC current of 240A, making it suitable for heavy-duty welding tasks. It features a maximum no-load voltage of 45.5V and absorbs up to 20KW of power, with an absorbed power of 10KW at a 60% duty cycle. The machine's power factor of 0.9 enhances its efficiency. The MasterMIG 400 includes 18 adjustment positions for precise control and supports a variety of welding wire diameters: 0.6 - 1.6mm for steel, 0.8 - 1.6mm for stainless steel, 0.8 - 1.2mm for aluminum, and 1 - 1.2mm for flux core and brazing wires. With a protection degree of IP22, it is suitable for environments with minimal moisture exposure. The machine's robust build, with dimensions of 94.5x56.5x83 cm and a weight of 104 kg, ensures durability and performance for a wide range of welding applications.