Single Phase to 3 Phase Converter 220V to 380V — VFD Frequency Inverter 1.5kW to 11kW: what you need to know before buying
Meet the Single Phase to 3 Phase Converter 220V to 380V — VFD Frequency Inverter 1.5kW to 11kW by 54 Energy, available for $145.00 at 54 Energy - Renewable Energy Store.
Run 3-phase motors from a single-phase 220V supply A variable frequency drive (VFD) that takes 220V single-phase input and delivers 380V three-phase output , sized from 1.5kW to 11kW . It is the standard solution for workshops, farms and home garages that own 3-phase machinery — a lathe, mill, compressor, pump or saw — but only have a single-phase supply at the wall. What it does for you No 3-phas
Want to see all the details, photos and delivery options? Just visit the product page in our store.
Run 3-phase motors from a single-phase 220V supply
A variable frequency drive (VFD) that takes 220V single-phase input and delivers 380V three-phase output, sized from 1.5kW to 11kW. It is the standard solution for workshops, farms and home garages that own 3-phase machinery — a lathe, mill, compressor, pump or saw — but only have a single-phase supply at the wall.
What it does for you
- No 3-phase connection required — avoids the cost and waiting time of a utility upgrade.
- Speed control included — unlike a rotary converter, a VFD also varies motor speed, which is useful on lathes, mills and pumps.
- Soft start — ramps the motor up instead of slamming it across the line, reducing mechanical shock and inrush current.
- Seven power ratings — 1.5kW, 2.2kW, 4kW, 5.5kW, 7.5kW and 11kW options to match the motor nameplate.
- Built-in protection — over-current, over-voltage, over-heat and overload cut-outs.
Technical specifications
| Input | 220V single phase |
|---|---|
| Output | 380V three phase |
| Power range | 1.5kW / 2.2kW / 4kW / 5.5kW / 7.5kW / 11kW |
| Type | VFD variable frequency drive |
| Control | Adjustable output frequency and speed |
| Protection | Over-current, over-voltage, overload, over-temperature |
| Typical loads | Lathes, mills, pumps, compressors, saws, conveyors |
How to size it correctly
Match the drive to the motor nameplate kW, then go one size up if the load is hard-starting: compressors, pumps under head and anything with a heavy flywheel. A VFD sized exactly to the motor will trip on inrush with those loads.
Also check your incoming single-phase supply. An 11kW drive draws a substantial single-phase current, so the feeding circuit, breaker and cable must be rated for it — this is the most common reason an otherwise correct installation fails.
Ordering, delivery and warranty
- Sold by 54 Energy
- Delivery 5 to 15 business days, tracked, worldwide
- Warranty 1 year against manufacturing defects on all products
- Payment Stripe: credit card, debit card and Apple Pay
- Import duties are not included and depend on your country's rules
Frequently asked questions
Will this run any 3-phase motor?
It runs standard 380V three-phase induction motors within the rated power. It is not suitable for motors requiring a different voltage class, nor for equipment that needs a true sine-wave utility supply for its own control electronics.
What size do I need for my machine?
Read the kW rating on the motor plate and select that rating. For compressors, pumps and other hard-starting loads, choose the next size up.
Can I keep the machine's original control panel?
Often not directly. Contactors and control transformers fed from the motor terminals can misbehave on VFD output. Most installations wire the machine's start/stop to the drive's control terminals instead. An electrician should make this change.
Does it need a special breaker or cable?
Yes. Single-phase input current is roughly three times the equivalent three-phase current for the same power, so the supply cable and breaker must be sized accordingly.
Is it the same as a rotary phase converter?
No. A rotary converter generates a third leg mechanically at fixed frequency. A VFD synthesises all three phases electronically and lets you vary speed, which is usually the better choice for a single machine.
What warranty applies?
1 year against manufacturing defects, with email support for sizing and wiring questions.