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.
Hot Tags: China 0.4kW to 400kW Variable Frequency Drive Manufacturer, Supplier, Factory
Looking for a reliable motor partner? Contact Hengfu for a fast quotation on bulk orders. Competitive factory prices and professional OEM services guaranteed.
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