Portable TIG Welders: The Workhorse Robotic TIGweld 300ST-R 300 Amp GTAW/SMAW Inverter Power Source View printer-friendly version Ideally suited for demanding Robotic applications Small footprint and portable for workstation flexibility 300 Amos at 32 VDC 60% Duty Cycle Three-Phase Read more on the Workhorse Robotic TIGweld Product Features page... Product Specifications: Primary Input* Rated Welding Current (AMPS) @ Duty Cycle Welding Amp Range Open Circuit Voltage Imput Amperes at Rated Load Output 50/60 Hz KVA KW Eff. Dimensions Weight 240V 400V 480V 575V Net Ship Three Phase 400A @ 29% 300A @ 60% 250A @ 100% Range 1 20-180A Range 2 80A - 400A 80 max 37 25 20 18 14.9 12.05 79.60% Height: 17.9" (45.5 cm) Width: 10.5" (26.7 cm) Depth: 19.5" (49.5 cm) Approx. 80 lbs. (36.3 kg.) Approx. 90 lbs. (41.0 kg) Single Phase 200A @ 100% 45 NA NA NA NA NA   Please click here to request a price list.