WS-250 inverter welding equipment WS-250 inverter welding machine WS-250 inerter welder Technical data: Rated Input Voltage 3 Phase AC380V±15% Frequency(Hz) 50/60 Rated Input Current(A) 14.4/10 No-load voltage(V) 70 Output Current(A) 20-250 Rated Output Voltage(V) 30/20 Duty Cycle(%) 60 Striking Arc Model HF Efficiency(%) 85 Power Factor 0.93 Insulation Class:F Protection Cladd:IP21 Product characteristics: 1. Apply advanced reversing technology and imported MOSFET Power switch. 2. Apply PWM control technology, outstanding constant current property, precise current control. 3. Apply high frequency to generate arc with high voltage, outstanding arc generating performance, high welding penetration. 4. High power utilization, low consumption without load, save energy. 5. Wide work voltage range, strong ability in adapting power grid. 6. It can be used for welding stainless steel, copper, carbon steel and other non ferrous metals. 7. Applicable for the metal processing for such industries as ship making, chemical, boiler, medical care hardware, environmental protection and decoration etc. 8. With manual arc welding function, it can provide complete welding with different materials.