TIG Welder Input Frequency 50/60 Hz Max Input Current 46 A @ 208V AC (Three-Phase) 47 A @ 208V AC (Single-Phase) Phase Single-/Three-Phase Polarity AC/DC Series Aspect 375 AC/DC Stick Welding Maximum Output Current 375 A Stick Welding Minimum Output Current 2 A (Single-Phase) 2 A (Three-Phase)