400 amps maximum output, 300 amps at 60% duty cycle• multiprocess power source combines the advantages of inverter-based design with the built-infeatures of a high end MIG machine.• at only 76 lb (34.5 kg) the EX300 offers the portability that allows you to take it anywhere it's needed• operates off of single or three phase power• Extreme Duty™ construction protects internal components and ensures reliable operation, even in themost abusive working conditions• NEMA Class 1 Rating• dimensions: height 17 inches (432 mm), width 12.5 inches (318 mm), depth 24 inches (610 mm)• optional Remote Control, MIG Pulsing Control,TIG Cooling System,TIG High-Frequency Starter,and TIG Pulsing Controls available• wind tunnel technology protects electrical components from contamination, significantlyimproving reliabilityPROCESSES• MIG (GMAW) with voltage sensing and constant speed wirefeeders• TIG (GTAW)• Stick (SMAW)• Air Carbon Arc Cutting and Gouging (CAC-A)• Pulsed TIG (GTAW-P) with optional controls• Pulsed MIG (GMAW-P) with optional controls