This rotary phase converter is sized specifically for welders, plasma cutters, EDM machines, battery chargers, and resistive-load equipment. These machines draw power differently than motors — they need a phase converter sized by amperage draw, not horsepower. Select your equipment's amp draw from the dropdown above and we'll ship the correctly sized converter.
| Sizing Method | By amperage draw (not HP) |
| Input Voltage | 230V Single-Phase |
| Output Voltage | 230V Three-Phase |
| Available Sizes | 15A, 20A, 25A, 30A, 40A, 50A, 60A, 75A, 100A |
| Load Type | Resistive / Intermittent Duty |
| Includes | TEFC Idler Motor + Pre-wired Control Panel |
📦 What's Included
- ✅ Correctly Sized TEFC Idler Motor (continuous duty, cast iron)
- ✅ Pre-wired Electrical Control Panel
- ✅ AutoLink Soft-Start System
- ✅ Complete Installation Manual & Wiring Diagrams
- ✅ Lifetime Warranty — motor & panel
Why Size by Amps for Welders
Welders, plasma cutters, and heaters don't have a motor HP rating. They draw current based on output settings — so we size by amp draw at 230V input, not horsepower.
Balanced three-phase output ensures consistent arc quality and reliable inverter operation. No voltage sag during high-current draws.
Thermal and magnetic overload protection. The AutoLink system handles the inrush and protects both the converter and your equipment.
TEFC cast iron idler motor and IP65 control panel. Built to survive welding shop environments — sparks, dust, heat, and vibration.
IP65 Weatherproof Control Panel
Sealed against welding dust, sparks, and moisture. Install in the shop or outside — the panel handles either environment.
🏗️ Equipment This Converter Powers
Not sure what amp draw your welder pulls?
Check the nameplate on your equipment for "Input Amps" at 230V — or call us and we'll help you figure it out.
Tell us your welder model — we'll size the right phase converter
This rotary phase converter is purpose-built for powering three-phase welders, plasma cutters, EDM machines, battery chargers, and other resistive-load equipment from single-phase 230V power. Unlike motor-driven equipment, welders and plasma cutters are sized by amperage draw rather than horsepower — select your equipment's input amp rating from the dropdown to get the correctly sized converter.
Every unit ships with a TEFC cast iron idler motor, pre-wired IP65 control panel, AutoLink soft-start, and a lifetime warranty. Manufactured by Phoenix Phase Converters in Phoenix, Arizona. Call (800) 417-6568 for sizing help.
