Technical Support
Phase Converters for Welders & Plasma Cutters
Application Guide · Welders & Plasma Cutters
Phase Converters for Welders & Plasma Cutters
Miller, Lincoln, Hypertherm, ESAB. Welders pull short, heavy current spikes — we help you choose between a dedicated unit and a shop-wide converter.
Get a Free Size Recommendation Call (602) 962-8859Short Heavy Spikes
Welders and plasma cutters draw large current spikes for short durations, then drop back to near zero. This pulsing load is different from a continuous motor load.
Dedicated vs. Shop-Wide
A large welder (200A+) often does better on its own dedicated converter. Smaller welders can share a shop converter with your other equipment.
Plasma Cutters
Hypertherm, Esab, and Thermal Dynamics plasma tables need clean, balanced three-phase for consistent cut quality. Imbalance shows up in the cut edge.
Multi-Process & Submerged Arc
Heavy fabrication shops running multiple welding stations simultaneously should size up — we'll calculate the concurrent load and recommend accordingly.
Welder & Cutter Brands
Miller, Lincoln Electric, ESAB, Hypertherm, Thermal Dynamics, Victor, Hobart, Fronius, Everlast, Longevity, Cigweld
Not Sure What Size You Need?
Tell us your welder amperage and input HP and we'll recommend the right converter.
Use Our Free Sizing ToolTalk to a Phase Converter Engineer
📞 (800) 417-6568Free sizing help • Lifetime warranty • Made in USA • Mon–Fri 7AM–5PM MST