Filter
Selection by parameters

Frequency converters 90.0 kW

Found 157 products
90 ×
Скинути фільтри
B2B Сервіс

Рахунок з ПДВ за 15 хв

Скидайте перелік моделей у Viber або Telegram — наш інженер підготує специфікацію та рахунок.

90 kW Variable Frequency Drives — Selection Guide

A 90 kW variable frequency drive (VFD) is a medium-heavy duty industrial drive used for soft-start and speed control of AC motors rated up to 90 kW on a 3x380 V supply. Browse the full VFD catalogue for over 1,000 models across all power ranges and brands.

Applications for 90 kW VFDs

90 kW drives are selected for demanding industrial processes requiring high-torque variable speed control:

  • Pump stations — water supply, irrigation and wastewater (20–40% energy savings versus throttling).
  • Fans and blowers — large HVAC systems, industrial ventilation, mine air systems.
  • Compressors — screw and centrifugal compressor units.
  • Conveyors and hoists — belt conveyors, screw feeders, crane hoisting mechanisms.
  • Extruders and mixers — food processing, chemical and rubber industries.
  • Centrifuges and crushers — mining and construction sectors.

90 kW VFD Models — Comparison

25 models are available in stock from leading manufacturers. The table below compares the most popular options based on real sales and technical specifications:

Model Brand Current, A IP EMC Filter Built-in PLC Max freq., Hz
Delta Electronics VFD900C43A Delta Electronics 171 IP20 No Yes 600
Veichi AC310-T3-090G/110P Veichi 180 IP20 Option Yes 600
Delta Electronics VFD900CP43A-21 Delta Electronics 180 IP20 Yes Yes 400
ABB ACS880-01-169A-3 ABB 169 IP21 Yes No 500
ABB ACS580-01-169A-4 ABB 169 IP21 Yes No 500
Schneider Electric ATV610D90N4 Schneider Electric 162 IP20 Yes No 500
Mitsubishi Electric FR-F740-01800-EC Mitsubishi Electric 180 IP20 Yes No 120

How to Choose a 90 kW VFD

Key parameters to evaluate when selecting a 90 kW drive:

  • Load duty cycle: for pumps and fans (variable torque), normal duty 110–120% overload is sufficient; for compressors, hoists and conveyors (constant torque), heavy duty HD — 150% overload is required. Note G (general / constant torque) and P (pump / variable torque) suffixes in model names.
  • Control mode: scalar V/f is adequate for fans and pumps; sensorless vector (SVC) suits conveyors and mixers; closed-loop vector (FVC) with encoder is needed for cranes, hoists and precision drives.
  • Protection rating: IP20/IP21 for control cabinets and clean rooms; IP54 or higher for dusty or humid environments.
  • EMC filter: a built-in EMC filter is required when connecting to networks governed by EN 61800-3 or where sensitive equipment is present nearby.
  • Built-in PLC: models with an integrated PLC (Delta VFD-C2000, Hitachi SJ700, Veichi AC310) can implement control logic without an external controller.

Other VFD Power Ratings

If you need a different power rating, explore related catalogue pages:

Warranty and Support

All 90 kW VFDs on Chastotnik.ua are supplied with official manufacturer warranty. Delivery across Ukraine via Nova Poshta or courier to major cities (Kyiv, Kharkiv, Dnipro, Odesa, Lviv). Payment: bank transfer, invoice for legal entities, card. Free technical consultation for drive selection. Returns and exchanges within 14 days in accordance with Ukrainian consumer law.

Frequently Asked Questions

What is a variable frequency drive and how does it work?

A VFD is an electronic device that converts AC mains voltage to DC (rectifier stage), then back to AC with adjustable frequency and amplitude (inverter stage). By varying the output frequency from 0 to 600 Hz, it smoothly controls the rotational speed of an AC induction motor from standstill to rated speed and beyond, while limiting starting current to 1.5× rated.

How do I size a VFD for my motor?

The VFD power rating should equal or exceed the motor nameplate power. For pumps and fans (variable torque), select based on the motor rating. For conveyors, cranes, and crushers (constant torque or heavy starting), choose one power step above — for example, for a 4 kW conveyor motor, we recommend a 5.5 kW VFD. Also verify that the motor's rated current does not exceed the VFD's current rating.

Can I run a three-phase 380V motor from a single-phase 220V supply?

Yes, you need a VFD with single-phase 220V input and three-phase 380V output, such as the Veichi AC70E or AC10 T/S2 variant. Power is limited to 2.2–4 kW depending on the series. The VFD not only starts the motor but also provides soft starting, speed control, and overload protection.

What is the difference between scalar and vector control?

Scalar control (V/f) maintains a constant voltage-to-frequency ratio — a simple, reliable method for pumps, fans, and compressors. Vector control (SVC, FOC) calculates motor current and flux vectors in real time, delivering 150–200% rated torque at low frequencies. Vector control is essential for conveyors, elevators, extruders, cranes, and CNC machine tools.

Why do I need an EMC filter in a VFD?

An EMC (electromagnetic compatibility) filter reduces high-frequency interference that the VFD generates in the power supply and airwaves. It is mandatory for facilities with sensitive equipment (medical, laboratories, server rooms), residential buildings, and when the cable between VFD and motor exceeds 25 m. The Veichi AC10, Delta VFD-E, and INVT GD20 models include a built-in Class C3 EMC filter.

How much energy does a VFD save?

On pumps and fans, savings range from 20% to 60% depending on the load profile. Power is proportional to the cube of speed (P∝n³): reducing speed by 20% halves energy consumption. If equipment typically operates at 70–80% of rated speed, average savings are approximately 40%. Payback period for a VFD on a pumping station is 6 to 18 months.