We are one of the dependable distributors of 400-630 AMPS IGBT Inverter DC Arc Welding System, which is the world's most reliable and preferred systems. Our impeccable 400-630 AMPS IGBT Inverter DC Arc Welding System is offered by us in various specifications and remarkable features in order to meet the even enhancing demands of the markets. Our company is offering most affordable price range of this inverters so as to be suit customer's budget. Uniform Features IGBT Inverter with PWM controlled technology IGBT controlled method renders a compact and light machine and PWM controlled technology presents stable welding current and stable welding attributes.Suitable for all kind of stainless steel, basic, acidic, cellulosic and low hydrogen alloy electrodes. High ambient temperature resistance up to 50C. Allowable fluctuation range of input voltage is upto 20%. Patented design of triple-tier and four cabinet. Hot start and dynamic arc force controls. Output Cable extendable to 100 metres. Compatibility with DG sets. TIG welding is possible with scratch start. Robust and rugged construction suitable for operation in rough conditionsExcellent technical support and on-site service. Important Safety Features Single-phasing protectionUnder-voltage and over-voltage protectionOverheating protectionEquipped with electric shock prevention switch in order to protect the operator while working in upper air, moist or in metal container. Technical specification Units 400AT3 630AT3 Input Rated input voltage Volts 415, +-20% 415, -20%, +15% Phase/Freq. No./Hz 3ph/50-60 3ph/50-60 Max. input KVA@415Vac @60% duty cycle KVA/KW 17.6/16.7 32.2/30.8 Output Rated current range Amps 20-400 50-630 Rated output voltage Volts 36 (MMAW) / 26 (Scratch TIG) 44 (MMAW) Welding current (40 C) @60% duty cycle Amps 400 630 @100% duty cycle Amps 310 490 General Conformance to international standards All machines are manufactured as per std. IEC 60974-1:2000/GB 15579.1:2004 Power control method IGBT Inverter Controlled Digital display 4 digit, 7 segment LED display Hot start & arc force Adjustable from front panel Ingress protection Class IP 23 Insulation Class H Cooling Type Forced air cooling Power factor > 0.9 Operating temperature oC -10 to 50 -10 to 40 Air carbon arc gouging mm - Up to 11.0 mm Dimensions (LxBxH) mm 327x560x602 327x619x706 Weight Kg 50 70 Ordering Information Model No. Power source YD-400AT3HJE YD-630AT3HJE Remote controller (optional) TSM93067 TSM93067