250 kW Variable Frequency Drives — Heavy Industrial Applications
A 250 kW variable frequency drive (VFD) controls asynchronous and synchronous electric motors in the most power-intensive industrial processes. Input voltage: three-phase 3×380 V (±15%), rated output current: 450–480 A, short-term overload capacity: 150% for 60 s. The full range of VFDs from 0.4 to 500 kW is available on the variable frequency drives (VFD) category page.
Applications for 250 kW Drives
250 kW drives are selected for heavy-duty industrial equipment where smooth starting, precise speed regulation and energy recovery are critical:
- Pumping stations — main water-supply and sewage pumps, reverse osmosis high-pressure pumps, fire-protection pumps. Variable-speed regulation saves up to 50% of consumed electricity compared to throttle control.
- Fans and blowers — induced-draft and forced-draft boiler fans, mine main-ventilation fans. The cubic power/speed relationship delivers maximum energy savings at this power class.
- Compressor systems — screw and centrifugal air compressors, refrigeration compressors, process gas compressors.
- Crane and hoisting equipment — overhead travelling cranes 32–80 t, portal cranes, mine hoists. Sensorless vector control provides load holding without rollback.
- Mills and crushers — ball mills in cement plants, ore crushers. Fly-start functionality allows re-engagement of a spinning load without stopping.
- Marine auxiliary machinery — sea-water pumps, auxiliary propulsion drives, roller conveyors.
250 kW VFD Models Available
Seven models with 3×380 V input from leading manufacturers are currently in stock. The table below compares key technical parameters:
| Model | Brand / Series | Output current, A | IP | f max, Hz | EMC filter |
|---|---|---|---|---|---|
| DX100-4T2500Q | Simphoenix DX100 | 475 | IP20 | 1000 | built-in |
| AC70-T3-250G/280P | Veichi AC70 | 470 | IP20 | 400 | no |
| GD200A-250G/280P-4 | INVT GD200A | 480 | IP20 | 400 | built-in |
| AC310-T3-250G/280P-L | Veichi AC310 | 470 | IP20 | 600 | option |
| ACQ80-01-250KW-4 | ABB ACQ80 | 475 | IP21 | 500 | built-in |
| ACQ80-07-250KW-4 | ABB ACQ80 | 475 | IP21 | 500 | built-in |
| FR-F840-05470-E2-60 | Mitsubishi Electric FR-F840 | 454 | IP20 | 590 | built-in |
Note. Simphoenix DX100-4T2500Q and Veichi AC70 support dual-rating mode 250/280 kW (G/P): G-mode for heavy loads with 150% overload for 60 s (conveyors, crushers), P-mode for pumps and fans at 120% overload.
How to Choose the Right 250 kW VFD
Four parameters define the correct model selection for a 250 kW motor drive:
- Load type (G or P): P-rating (120%) is sufficient for pumps and fans; G-rating (150%) is mandatory for compressors, cranes and crushers.
- Maximum output frequency: standard drives require 400 Hz; spindle-type applications need fmax ≥ 600 Hz (Veichi AC310, Mitsubishi FR-F840).
- Ingress protection (IP): IP20 is adequate for clean electrical rooms; IP21 (ABB ACQ80) or an external enclosure is required for wet or dusty environments.
- Built-in EMC filter: required on sites with electromagnetic compatibility standards (hospitals, office buildings, automated production lines).
Adjacent power ratings in the catalogue
If the motor power is close to 250 kW, browse also the adjacent power pages: 200 kW VFDs, 315 kW VFDs, 160 kW VFDs.
Warranty and support
All 250 kW VFDs in the chastotnik.ua catalogue come with the manufacturer's official warranty of 12 to 24 months. Our technical specialists help select the right model for your load type, motor parameters and installation environment. We accept orders with delivery throughout Ukraine via Nova Poshta and Ukrposhta; payment by bank transfer for companies or card for individuals.
