Harris Ultra High Purity Stainless Steel Barstock Regulator Model 741 500 350 AD 5 741500350AD5 Model 742 6 in × 18 Stay Silv 5HP 6 in × 18 1 Welding process output mode Rating basis Amperes Volts Duty cycle As printed by Lincoln Rated output (mode not broken out) IEC Rating 400A 36V 100% IEC Rating – 400A 36V 100% Rated output (mode not broken out) Max Rating 520A 30V 60% Max Rating – 520A 30V 60% Output range — as printed by Lincoln Mode parameter Range CC Stick 30 – 525 Amps Downhill Pipe (CC) 40 – 350 Amps Touch Start® TIG 20 350 Amps CV Wire 10 – 45 Volts Arc Gouging 60 – 525 Amps Open circuit voltage 70 Max OCV @ 1800 RPM Rated ambient temperature Column header: "Rated Output @104°F (40°C)" Auxiliary (AC generator) power — Vantage 441X (K4535 1) research sample system gas and process analyzer gases applications Typical Applications