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0.4kW to 400kW Variable Frequency Drive
  • 0.4kW to 400kW Variable Frequency Drive0.4kW to 400kW Variable Frequency Drive
  • 0.4kW to 400kW Variable Frequency Drive0.4kW to 400kW Variable Frequency Drive
  • 0.4kW to 400kW Variable Frequency Drive0.4kW to 400kW Variable Frequency Drive
  • 0.4kW to 400kW Variable Frequency Drive0.4kW to 400kW Variable Frequency Drive

0.4kW to 400kW Variable Frequency Drive

Hengfu, a National High-tech Enterprise, provides a full range of 0.4kW to 400kW Variable Frequency Drive. Supporting 220V/380V , our inverters feature advanced Vector Control technology and Siemens IGBT modules for precise speed regulation (0-500Hz). With CE certification and built-in RS485 Modbus, Hengfu VFDs offer a reliable, cost-effective solution for industrial automation, including fans, pumps, and compressors.

The Hengfu 0.4kW to 400kW Variable Frequency Drive is engineered to balance high reliability with industrial economic efficiency. Utilizing an adaptive Space Voltage Vector algorithm, it delivers a perfect sine wave output across all frequencies, ensuring stable motor operation even with ±20% grid voltage fluctuations. Each unit undergoes a rigorous 8S-managed production process, including a specialized three-proof paint coating to thrive in harsh environments like textiles, papermaking, and cement. With an independent air-duct design and a high overload capacity, this drive is the ultimate choice for global machinery manufacturers seeking robust motor control solutions.


Core Advantages

Siemens IGBT Core Technology: Powered by Siemens IGBT modules and large-scale motor control ICs, ensuring high machine stability and rapid response.

Advanced Protection System: Provides 18 types of fault protection, covering everything from overvoltage to short-circuiting for comprehensive motor safety.

Smart Operation & Integration: Features a clear LED user menu, RS485 Modbus-RTU protocol, and PID closed-loop control for seamless PLC connection.

Rugged Industrial Build: Independent cooling ducts and triple-conformal coating protect internal circuits from dust and corrosive gases.

Cost-Effective Scalability: Optimized modular design and large-scale production allow us to offer factory-direct pricing with high-end performance.

Energy-Saving Startup: High-starting torque and smooth speed tracking prevent mechanical stress and reduce peak power demand.


Metal Chassis (11-630KW) A Series

power H W D H1 W1 Aperture
11KW 15KW 272 160 201 259 146 5.2
18.5KW 22KW 313 211 205 299 196 6.5
30KW 37KW 418 252 206.9 399 201 9
45KW 55KW 603 299 276.7 581 240 9
75KW 93KW 110KW 643 338 312 619 280 11
132KW 160KW 185KW 200KW 803 410 383.7 776 320 12
220KW 250KW 280KW 315KW 1078.8 650 430.2 1046.8 520 13
355KW 400KW 450KW 1320 800 438 1280 700 16
500KW 560KW 630KW 1500 1028 450 1460 800 16


Optional accessories

name say model Function
Built-in braking unit Product model numbers ending in "B" Single-phase 0.4~2.2KW built-in unit, three-phase 0.4~15KW built-in braking unit.
External braking unit TES390-B Used to suppress excessive voltage rise caused by rapid speed drop of the frequency converter, and at the same time... Load generation suppression
reactor TES390-DK Used to suppress higher harmonics and improve the power factor.
Modbus communication card TES390-485 RS485 communication interface
External LED control panel TES390-KE1-A(B) External LED display and operation keyboard
Control panel extension cable TES390-CAB It can be connected to an external LED control panel, and a cable up to 15 meters long is provided.


In-depth Technical Breakdown

Engineered for Precision: Advanced Motor Control Logic

The heart of the Hengfu 0.4kW to 400kW Variable Frequency Drive lies in its Self-Adaptive Space Voltage Vector Algorithm. This advanced logic ensures:

Low-Frequency High-Torque: Achieve up to 150% rated torque at just 0.5Hz, providing powerful startup capability for heavy-load machinery like stone crushers and mixers.

Grid Voltage Resilience: Designed to handle unstable power environments, our VFDs operate reliably within a ±20% voltage fluctuation range, making them ideal for regions with aging power infrastructure.

Instantaneous Power Failure Ride-Through: Through dynamic DC bus voltage control, the inverter can maintain operation during brief power dips, preventing costly production downtime.


Industry-Specific Solutions

Versatile Performance Across Diverse Industrial Sectors

Textile & Dyeing: Our specialized triple-conformal coating (anti-dust, anti-moisture, anti-mold) protects the PCB from corrosive gases and cotton lint, ensuring long-term stability in high-humidity mills.

HVAC & Water Treatment: Built-in PID controllers allow for seamless closed-loop pressure or flow control, significantly reducing energy consumption for pumps and fans by up to 30-50%.

CNC & Metalworking: High-speed response and RS485 Modbus-RTU communication enable synchronized control for precision lathes and wire-drawing machines.

Heavy Industry: For units above 18.5kW, we optimize the internal layout for maximum heat dissipation, supporting continuous heavy-duty cycles in cement and mining operations.


Expert Selection Guide & FAQ

How to Choose the 0.4kW to 400kW Variable Frequency Drive for Your Project?

G-Type: Ideal for constant torque loads like conveyors and compressors.

P-Type: Optimized for variable torque loads, offering enhanced energy savings for fluid control.


Frequently Asked Questions

Q: Does it support external braking?

A: Yes, units under 18.5kW have a built-in braking unit. For 18.5kW and above, we provide easy-access terminals for external braking resistors.

Q: Can I customize the software for my specific machine?

A: Absolutely. As a source factory, we offer OEM/ODM services, including customized firmware, specialized control logic, and private labeling.

Q: Is the cooling fan replaceable?

A: Yes, the 0.4kW to 400kW Variable Frequency Drive features a modular fan design for easy cleaning and quick tool-less replacement.



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