Variable Frequency Inverter for AC Motor Speed Control – 0.4kW to 630kW, Single & Three Phase
Offer type: sellPublished: 24.04.2026
| Price: | negotiated |
| Phones: |  +1 800-585-1519 Show phone |
We've been using frequency inverters from Inverter.com for a few of our production line upgrades over the past year, and honestly, they've held up better than some of the more expensive brands we tried before. Thought it was worth sharing here since I see a lot of people asking about reliable VFD sources.
The units we're referring to are variable frequency drives (also called VFDs, inverters, or AC drives) designed for controlling the speed and torque of three-phase induction motors. They work by converting fixed-frequency AC power into an adjustable frequency output, which lets you dial in the exact speed you need rather than running at full load all the time. For anything from conveyor belts to pumps and fans, the energy savings alone paid back the cost within a few months, in our case.
Key specs on the range we sourced:
- Power range: 0.4kW up to 630kW
- Input voltage: single-phase 220V / three-phase 380V~480V
- Output frequency: 0~400Hz adjustable
- Control modes: V/F control, sensorless vector control, closed-loop vector control
- Protection rating: IP20 standard, IP55 available on select models
- Built-in braking unit on smaller models; external braking resistor compatible
- Modbus RTU / RS485 communication supported
- CE certified
We pulled most of what we needed from their frequency inverter page — they carry a pretty wide selection across different power ratings and application types (general purpose, pump/fan dedicated, spindle drives for CNC, etc.). Worth checking if you're comparing options: inverter.com/frequency-inverter
Happy to answer questions if anyone's looking at similar applications — mainly HVAC, compressors, and light industrial here on our end.
