Your dream shop shouldn't be limited by available power. More and more machine shops are being started in rural and other non-industrial areas where three-phase power is not available or is prohibitively expensive. Whether you're setting up in a pole barn, garage, or remote commercial space, the power infrastructure shouldn't limit your machining capabilities or force you to compromise on equipment quality.
While rotary and static converters offer alternatives to utility three-phase power, they come with significant drawbacks due to poor voltage balance:
The Phase Perfect® was specifically designed to address the unique power needs of machine shops. Just feed single-phase into the unit and get utility-quality three-phase back out.
In many cases, machine shop equipment requires 208 V delta configured three-phase power. A Phase Perfect® is easily paired with relatively inexpensive buck/boost transformers to lower voltage to 208 V from 240 V if required or can be used with a Delta to Wye transformer for applications requiring a neutral.
With over 20 years of refinement, our solid-state converters are built to last: No moving parts = less maintenance, fewer failures. Phase Perfect ensures uninterrupted operation, lower energy costs, and longer equipment life.
Stop wasting money on lost power and burned-out motors. Enter your load size and the hours per day you are working with your equipment to see what you’re spending with a rotary converter and how much you’ll save with a Phase Perfect today.
Calculations assume $0.20/kWh. Phase Perfect idles at 80W; a comparable rotary idles at ~11% of rated HP. Check your regional rate →
| Feature | Phase Perfect® Digital Converter | Rotary Converter | Static Converter |
|---|---|---|---|
| Running Efficiency | 98.7% | ~87% — 13% wasted as heat | ~50% — only powers 2 of 3 windings |
| Voltage Imbalance | <2% — utility standard | 3–8% — stresses motors | High — only 2 phases are powered |
| Standby Power Draw | 80W — barely anything | 2,000–4,000W+ | Low |
| Noise Level | Near silent — no moving parts | Loud — always spinning | Silent |
| Motor Power Output | 100% — all three phases powered | ~85% — voltage imbalance reduces output | ~50–65% — motors run hot & weak |
| Motor Life Impact | Full life — clean balanced power | Reduced — imbalance causes heating | Significantly reduced — runs hot |
| Multiple Machines | Run several simultaneously | Yes, if sized correctly | One machine at a time |
| Maintenance Required | None — fully solid state | Capacitors every 1–3 years | Occasional capacitor check |
| Built-in Protection | Digital fault monitoring | None | None |
| Yearly Operating Cost (10 HP) | ~$24/yr | ~$1,700/yr | ~$12/yr idle, but motors wear faster |
| Starting and Load capacity | 50 HP | 100 HP Required (2× Oversized) | — |
| Physical Presence | Compact, Lightweight, Quiet | Large, Heavy & Loud | — |
| Monitoring & Controls | Built-In Display, Keypad & Modbus | None | — |
| Regenerative Technology | Returns Energy During Shutdown | Wasted Energy / No Regeneration | — |
| Installation | 2 Wires In, 3 Out | Complex Wiring Required | — |
| Enclosure | Low Cost NEMA 3R Available | $$$ Expensive 3R | — |
Run 460 V three-phase equipment off standard 230 V single-phase service — no transformer required. Available in 20 HP and 30 HP configurations.
Learn More →Choosing the correct pump drive involves more than matching horsepower. Incoming voltage, phase availability, pump type, motor lead length, pressure requirements, environmental conditions, harmonic limits and control preferences can all affect the final system design.
Phase Technologies offers residential drives, general-purpose DXL drives, low-harmonic LHX drives, phase-converting systems, voltage-doubling configurations and customized control panels from a single U.S. manufacturer.
Whether you need constant pressure for a home, three-phase motor control for an irrigation well or a customized low-harmonic panel for a municipal pumping station, our team can help configure a system around the way your site actually operates.
Built In The USA
Every Phase drive is engineered, assembled and tested at our Rapid City, South Dakota headquarters — with the industry’s fastest lead times.
BABA Compliant · Build America, Buy America