Product Overview
Voltnex Power 315kW-500kW (420HP-670HP) Three Phase Variable Frequency Drive (VFD) Heavy Duty AC Inverter is a high-capacity industrial motor control solution designed for large-scale machinery, heavy industrial equipment and continuous-duty automation systems.
This premium VFD series includes 315kW, 400kW, 450kW and 500kW models, covering motor capacities from 420HP to 670HP. It is developed for applications requiring high torque output, stable speed regulation, precise frequency conversion and reliable long-term operation.
Compared with conventional motor starting methods, the Voltnex high-power VFD provides:
- Smooth motor acceleration and deceleration
- Reduced startup current impact
- Improved motor protection
- Optimized energy consumption
- Accurate speed and torque control
- Extended equipment service life
Designed with advanced frequency conversion technology, high-performance IGBT power modules and intelligent control algorithms, this VFD series delivers reliable operation in demanding industrial environments.
Supporting worldwide voltage standards:
- 208V AC
- 220V AC
- 380V AC
- 400V AC
- 415V AC
- 440V AC
- 480V AC
the Voltnex 315-500kW VFD can be customized for different countries, industrial facilities and engineering projects.
Typical applications include:
- Mining equipment
- Steel production machinery
- Oil and gas systems
- Large industrial pumps
- Air compressors
- HVAC chillers
- Conveyor systems
- Manufacturing production lines
- Heavy automation equipment
As a professional China Variable Frequency Drive Manufacturer, Voltnex Power provides factory direct supply, OEM/ODM customization, technical support and global industrial solutions for distributors, engineering companies and end users.
High Power VFD Product Introduction
What Is a 315kW-500kW Variable Frequency Drive?
A Variable Frequency Drive (VFD), also known as an AC Drive, Frequency Inverter or Motor Speed Controller, is an industrial electronic device used to control the speed, torque and operating performance of AC motors.
The Voltnex 315kW-500kW VFD converts fixed-frequency AC power into adjustable frequency output power, allowing large motors to operate according to actual production requirements.
Traditional motor systems usually operate at fixed speed, which can cause:
- High startup current
- Mechanical stress
- Excessive energy consumption
- Unstable production performance
With VFD control technology, motors can automatically adjust operating speed according to load demand.
For example:
- Pumps can adjust flow automatically
- Fans can regulate airflow
- Compressors can optimize pressure control
- Conveyors can maintain stable transportation speed
High Power VFD vs Traditional Motor Control
| Control Method | Advantages | Limitations |
|---|---|---|
| Direct Motor Start | Simple structure, low installation cost | High startup current and mechanical impact |
| Soft Starter | Reduces startup current impact and provides smoother motor starting | Limited speed control capability |
| VFD Control | Full speed control, torque management and energy optimization | Higher initial investment and requires professional configuration |
The Voltnex high-power VFD provides a complete motor management solution for modern industrial facilities.
Available Models & Power Range
| Model | Rated Power | Motor Capacity | Recommended Applications |
|---|---|---|---|
| 315kW VFD | 315kW | 420HP | Mining conveyors, industrial pumps, heavy fans |
| 400kW VFD | 400kW | 530HP | Heavy machinery, production systems, compressors |
| 450kW VFD | 450kW | 600HP | Large motors, HVAC systems, industrial automation |
| 500kW VFD | 500kW | 670HP | Steel plants, heavy industry equipment, large drive systems |
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | Three Phase Variable Frequency Drive (VFD) |
| Power Range | 315kW / 400kW / 450kW / 500kW |
| Motor Capacity | 420HP / 530HP / 600HP / 670HP |
| Input Voltage | 208V / 220V / 380V / 400V / 415V / 440V / 480V AC |
| Phase | Three Phase |
| Frequency | 50Hz / 60Hz |
| Output Frequency | Adjustable 0-400Hz |
| Control Mode | V/F Control, Vector Control |
| Motor Type | AC Induction Motor |
| Cooling Method | Heavy Duty Forced Air Cooling |
| Protection Function | Over Voltage, Over Current, Overload, Short Circuit, Over Temperature Protection |
| Communication | RS485 / Modbus / Customized Industrial Protocol |
| Installation | Electrical Room / Control Cabinet / Industrial Panel |
Product Design & Internal Structure
Voltnex 315-500kW VFD adopts an industrial cabinet structure designed for high-power operation.
The internal design focuses on:
- Efficient heat dissipation
- Electrical safety
- Long service life
- Easy maintenance
- Stable continuous operation
1. Industrial Grade Cabinet Enclosure
The VFD enclosure uses a durable steel cabinet structure.
Features:
✔ Powder coated surface
✔ Corrosion resistance
✔ Mechanical protection
✔ Industrial installation compatibility
The cabinet design allows installation in:
- Electrical rooms
- Factory control areas
- Automation cabinets
- Industrial equipment rooms
2. High Performance IGBT Power Module
The power module is the core component of the VFD system.
Voltnex uses high-performance IGBT technology to achieve:
- Efficient power conversion
- Lower switching loss
- Stable high-load operation
- Improved reliability
The IGBT module allows the VFD to handle demanding applications including:
- Large motors
- Heavy loads
- Frequent acceleration
- Continuous operation
3. Intelligent Control Board System
The industrial-grade PCB control system provides:
- Accurate motor parameter control
- Intelligent protection monitoring
- Communication management
- Stable signal processing
Supported functions:
- Speed adjustment
- Torque control
- Acceleration setting
- Deceleration setting
- Fault monitoring
4. Heavy Duty Cooling Ventilation System
High-power VFD systems generate significant heat during operation.
Voltnex designs efficient forced air cooling systems including:
- High-performance cooling fans
- Optimized airflow channels
- Temperature monitoring
- Heat dissipation structure
Benefits:
✔ Prevent overheating
✔ Improve operating stability
✔ Extend component lifetime
✔ Support continuous industrial operation
5. Industrial Copper Connection Terminals
The power connection system uses industrial-grade terminals.
Advantages:
- High conductivity
- Stable connection
- Heat resistance
- Long-term reliability
Suitable for:
- Large current applications
- Industrial electrical systems
- Heavy machinery installation
Main Advantages of Voltnex 315-500kW VFD
1. High Power Motor Control Capability
Designed for motors from:
420HP to 670HP
The VFD provides:
- Stable speed regulation
- Strong torque output
- Smooth acceleration
- Reliable heavy-load operation
2. Energy Efficient Motor Operation
Large motors consume significant electricity.
By adjusting motor speed according to actual demand, VFD control can reduce unnecessary energy consumption.
Especially suitable for:
- Pumps
- Fans
- Compressors
3. Reduced Mechanical Stress
Traditional direct starting creates large mechanical impact.
The Voltnex VFD provides:
- Soft starting
- Smooth stopping
- Reduced vibration
- Lower maintenance requirements
4. Reliable Heavy Industrial Performance
Designed for demanding environments:
- Mining
- 制造业
- Steel processing
- Energy projects
The VFD maintains stable operation under continuous industrial workloads.
5. Flexible OEM & ODM Customization
Voltnex supports customized solutions including:
- Voltage configuration
- Cabinet design
- Communication functions
- Software parameters
- Customer branding
Suitable for:
- Equipment manufacturers
- System integrators
- Industrial distributors
Energy Saving Analysis of 315kW-500kW VFD System
For large industrial motors, energy consumption is one of the most important operating costs. Traditional fixed-speed motors often run continuously at full speed even when the actual load demand is lower.
Voltnex Power 315kW-500kW Three Phase Variable Frequency Drive VFD helps optimize motor operation by adjusting output frequency and motor speed according to real-time production requirements.
By controlling motor speed, the VFD can help:
- Reduce unnecessary power consumption
- Improve operating efficiency
- Lower mechanical wear
- Extend equipment lifetime
- Reduce maintenance costs
VFD Energy Saving Principle
The energy-saving effect is especially significant for variable torque loads such as:
- Water pumps
- Cooling fans
- Blowers
- HVAC compressors
For these applications, power consumption follows the affinity law:
| Motor Speed | Approximate Power Consumption |
|---|---|
| 100% Speed | 100% Power Consumption |
| 90% Speed | About 73% Power Consumption |
| 80% Speed | About 51% Power Consumption |
| 70% Speed | About 34% Power Consumption |
By reducing unnecessary motor speed, the Voltnex VFD can significantly improve system efficiency.
Example Energy Saving Application
400kW Pump System Upgrade
Traditional system:
- Motor Power: 400kW
- Operation: Fixed Speed
- Running Time: 20 hours/day
After installing Voltnex 400kW VFD:
- Automatic speed adjustment
- Optimized flow control
- Reduced unnecessary operation
Benefits:
✔ Lower electricity consumption
✔ Reduced pump stress
✔ Improved process control
✔ Longer motor service life
Motor Protection Advantages
Large industrial motors require reliable protection systems.
The Voltnex high-power VFD provides multiple protection functions:
Over Voltage Protection
Protects the inverter and motor from abnormal voltage conditions.
Over Current Protection
Prevents damage caused by excessive current during:
- Startup
- Sudden load changes
- Mechanical blockage
Overload Protection
Maintains safe operation when motors operate under heavy loads.
Short Circuit Protection
Provides fast protection response for electrical safety.
Over Temperature Protection
Monitors internal temperature to ensure reliable operation.
Installation Guide
Recommended Installation Environment
The 315kW-500kW VFD is designed for professional industrial installation.
Recommended environment:
| Parameter | Requirement |
|---|---|
| Installation Location | Electrical Room / Control Room |
| Ambient Temperature | -10℃ to +50℃ |
| Humidity | ≤95% RH |
| Cooling | Forced Air Ventilation |
| Installation Method | Cabinet / Panel Mount |
| Protection Level | Optional IP20 / IP21 / IP54 |
Electrical Installation Requirements
Power Supply Connection
Before installation:
- Confirm input voltage
- Select suitable cable size
- Check grounding system
- Verify motor parameters
Motor Cable Selection
For high-power VFD applications:
Recommended:
- Copper power cables
- Proper cable insulation
- Short cable distance where possible
- Correct grounding connection
Ventilation Requirements
High-power VFD systems require sufficient airflow.
Recommended installation:
- Maintain ventilation clearance
- Avoid heat accumulation
- Keep cooling channels clean
- Provide proper cabinet ventilation
Typical Installation Layout
A standard industrial installation includes:
(Optional)
Three Phase VFD
Industrial Application Solutions
1. Mining Industry VFD Solution
Mining operations require powerful and reliable motor control systems.
Voltnex 315-500kW VFD is suitable for:
- Belt conveyors
- Crushers
- Grinding equipment
- Ventilation systems
- Material handling equipment
Application Benefits
✔ High torque startup
✔ Stable operation under heavy loads
✔ Reduced mechanical impact
✔ Improved energy efficiency
Project Example: Chile Mining Conveyor System
Customer Requirement
Industry:
Copper Mining
Equipment:
Large conveyor motor system
Motor Power:
315kW
Solution
Voltnex supplied:
- 315kW Three Phase VFD
- Customized 400V configuration
- Heavy-duty cooling system
Result
✔ Smooth conveyor startup
✔ Reduced motor current impact
✔ Improved production stability
2. Steel Manufacturing Industry Solution
Steel factories require continuous operation and precise motor control.
Applications:
- Rolling mills
- Steel processing machines
- Cooling systems
- Heavy conveyors
Voltnex VFD advantages:
✔ Accurate speed control
✔ High overload capability
✔ Stable production performance
✔ Reduced downtime
Project Example: Brazil Steel Processing Line
Customer Requirement
Equipment:
Steel production conveyor
Motor:
500kW
Solution
Voltnex provided:
- 500kW VFD system
- 480V industrial configuration
- Customized control parameters
Result
✔ Improved production efficiency
✔ Reduced mechanical stress
✔ Stable operation during continuous production
3. Industrial Pump Station Solution
Large pumps consume significant energy.
Voltnex VFD is widely used for:
- Water treatment plants
- Industrial circulation systems
- Irrigation projects
- Process water systems
Benefits
✔ Automatic flow adjustment
✔ Energy-saving operation
✔ Reduced water hammer effect
✔ Longer pump lifetime
Project Example: UAE Water Treatment System
Customer Requirement
Application:
Industrial water pumping station
Motor:
400kW
Solution
Installed:
- 400kW Three Phase VFD
- 415V configuration
- Industrial control system
Result
✔ Stable pressure control
✔ Lower operating cost
✔ Reliable 24-hour operation
4. Large Compressor Control Solution
Industrial compressors require precise speed regulation.
Applications:
- Air compressors
- Gas compressors
- Refrigeration compressors
Voltnex VFD provides:
✔ Smooth compressor startup
✔ Pressure optimization
✔ Reduced energy consumption
✔ Stable output control
Project Example: Saudi Industrial Compressor System
Customer Requirement
Industry:
Industrial Manufacturing
Equipment:
Large air compressor
Motor:
450kW
Solution
Voltnex supplied:
- 450kW AC Frequency Inverter
- Customized communication system
- Heavy-duty cooling design
Result
✔ Improved compressor efficiency
✔ Reduced operating fluctuations
✔ Enhanced system reliability
5. HVAC & Cooling System Solution
Large HVAC systems require efficient motor control.
Applications:
- Chiller compressors
- Cooling towers
- Large ventilation fans
Voltnex VFD helps:
- Match cooling demand
- Reduce electricity waste
- Improve system stability
Supported Industrial Applications
| Industry | Typical Equipment |
|---|---|
| Mining | Conveyor, Crusher, Grinding Machine |
| Steel | Rolling Mill, Processing Equipment |
| Oil & Gas | Pumps, Compressors |
| Water Treatment | Pump Stations |
| HVAC | Chillers, Cooling Towers |
| 制造业 | Production Lines |
| Automation | Heavy Motor Systems |
| Energy | Industrial Power Systems |
Why Industrial Customers Choose High Power VFD
For motors above 300kW, reliability is more important than simple speed control.
Voltnex high-power VFD solutions provide:
✔ High torque performance
✔ Industrial-grade components
✔ Long operating lifetime
✔ Flexible customization
✔ Factory direct supply
✔ Global technical support
Voltnex Power High Power VFD Manufacturing Process
As a professional China Variable Frequency Drive Manufacturer, Voltnex Power focuses on producing reliable industrial motor control solutions for global markets.
The production process of 315kW-500kW Three Phase VFD Variable Frequency Drive includes strict component inspection, professional assembly, electrical testing and aging verification to ensure stable performance before shipment.
Our manufacturing system is designed to support:
- Industrial equipment manufacturers
- Engineering contractors
- System integrators
- Electrical distributors
- Large industrial projects
Raw Material & Component Inspection
Before production, all critical components are inspected according to industrial quality requirements.
Main inspected components include:
- IGBT power modules
- Capacitors
- Control PCB boards
- Cooling fans
- Copper terminals
- Electrical connectors
- Internal wiring components
Inspection items:
✔ Appearance inspection
✔ Electrical parameter testing
✔ Performance verification
✔ Reliability evaluation
Professional Assembly Process
Each high-power VFD unit goes through a professional manufacturing process.
Step 1: Cabinet Assembly
The industrial enclosure is assembled with:
- Powder coated steel cabinet
- Reinforced structure
- Internal mounting rails
- Ventilation design
Step 2: Power Module Installation
High-performance IGBT modules are installed and tested.
Advantages:
- High efficiency
- Low power loss
- Strong overload capability
- Stable high-current operation
Step 3: Electrical Wiring
Professional technicians complete:
- Power wiring
- Control wiring
- Communication connection
- Grounding connection
All wiring is checked before testing.
Step 4: Parameter Configuration
Before shipment, the VFD parameters are configured according to customer requirements.
Including:
- Motor power
- Voltage
- Frequency
- Acceleration time
- Deceleration time
- Control mode
Quality Control & Testing
Voltnex Power performs multiple tests before delivery.
1. Power-On Testing
Checks:
✔ Input voltage performance
✔ Display operation
✔ Control response
✔ Basic functions
2. Protection Function Testing
Testing includes:
- Over voltage protection
- Over current protection
- Overload protection
- Short circuit protection
- Temperature protection
3. Cooling System Testing
The cooling system is tested to verify:
- Fan operation
- Airflow performance
- Temperature control
4. Load Simulation Testing
High-power VFD units undergo simulated operating conditions.
Testing:
- Motor response
- Frequency adjustment
- Torque output
- Stability performance
5. Aging Test
Long-time operation testing helps verify:
- Component reliability
- Thermal stability
- Continuous operation capability
Reference Dimensions & Weight
Due to the large power capacity, the 315kW-500kW VFD adopts a heavy-duty industrial cabinet structure.
| Model | Reference Dimension (H×W×D) | Weight |
|---|---|---|
| 315kW VFD | 1500-1700 × 850-1000 × 650-800mm | 350-480kg |
| 400kW VFD | 1600-1800 × 900-1100 × 700-850mm | 450-600kg |
| 450kW VFD | 1700-1900 × 1000-1200 × 750-900mm | 550-700kg |
| 500kW VFD | 1800-2000 × 1100-1300 × 800-1000mm | 650-850kg |
Dimensions may vary depending on voltage configuration, cabinet structure, communication requirements and customization options.
Factory Price Reference
Voltnex Power provides direct factory pricing for distributors, engineering companies and industrial projects.
| Model | Motor Capacity | Factory Price Reference |
|---|---|---|
| 315kW VFD | 420HP | USD 14,000 – 22,000 / Unit |
| 400kW VFD | 530HP | USD 18,000 – 28,000 / Unit |
| 450kW VFD | 600HP | USD 22,000 – 35,000 / Unit |
| 500kW VFD | 670HP | USD 25,000 – 40,000 / Unit |
Price Factors
Final quotation depends on:
- Rated voltage
- Quantity
- Communication requirements
- Cabinet design
- Protection level
- Shipping destination
- OEM requirements
For bulk orders, distributors and project customers, Voltnex provides competitive wholesale pricing.
Export Packaging & Global Shipping
Large industrial VFD equipment requires professional export protection.
Voltnex Power uses:
Standard Export Packaging
Including:
✔ Protective stretch film
✔ Moisture-proof protection
✔ Shock-resistant materials
✔ Reinforced wooden pallet
✔ Export wooden case option
Packaging Process
Step 1
Electrical inspection completed before packing.
Step 2
The VFD cabinet is protected with industrial wrapping materials.
Step 3
Equipment is fixed securely on wooden pallets.
Step 4
Final package inspection before shipment.
Shipping Solutions
Voltnex supports worldwide delivery:
Shipping methods:
- Sea freight
- Air transportation
- Container shipment
- International logistics
Trade terms:
- EXW
- FOB
- CIF
- DDP
Export markets include:
- United States
- Canada
- Mexico
- Brazil
- Chile
- Colombia
- UAE
- Saudi Arabia
- Australia
- Europe
- Africa
Warranty & Technical Support
Voltnex Power provides professional after-sales support.
Warranty Service
Standard warranty:
18-24 months after shipment
(Custom warranty available for projects)
Technical Support
Support includes:
✔ Installation guidance
✔ Parameter setting
✔ Wiring support
✔ Troubleshooting assistance
✔ Spare parts supply
Why Choose Voltnex Power?
Professional China Factory Manufacturer
Voltnex Power specializes in:
- High Power VFD
- AC Frequency Inverter
- Industrial Motor Controller
- Isolation Transformer
- Voltage Stabilizer
- Power Quality Equipment
Factory Direct Supply
Advantages:
✔ Competitive pricing
✔ Short communication process
✔ OEM capability
✔ Customized solutions
✔ Stable production capacity
Industrial Project Experience
Voltnex supports:
- EPC contractors
- Equipment manufacturers
- Industrial distributors
- Factory automation projects
Frequently Asked Questions (FAQ)
1. What power range does this VFD support?
The series includes:
315kW, 400kW, 450kW and 500kW models.
2. What motor horsepower can it control?
It supports:
420HP, 530HP, 600HP and 670HP motors.
3. Can the voltage be customized?
Yes.
Voltnex supports:
208V / 220V / 380V / 400V / 415V / 440V / 480V AC.
4. Is this VFD suitable for heavy industry?
Yes.
It is designed for:
- Mining
- Steel
- Pumps
- Compressors
- Production lines
5. Do you provide OEM service?
Yes.
OEM and ODM customization are available.
6. Can you provide CE certificates?
Yes.
Relevant certificates and documents can be provided according to project requirements.
7. What is the delivery time?
Normally:
20-40 working days depending on specifications and quantity.
8. Can you supply wholesale orders?
Yes.
Voltnex supports:
- Distributors
- Engineering companies
- Large projects
9. How is the VFD cooled?
The system uses:
Heavy-duty forced air cooling.
10. Can you customize communication functions?
Yes.
Optional:
- RS485
- Modbus
- Industrial communication protocols
11. Can it replace traditional motor starters?
Yes.
The VFD can replace many fixed-speed starting systems and provide advanced speed control.
12. What industries use this product?
Applications include:
- Mining
- 制造业
- HVAC
- Water treatment
- Energy
- Heavy machinery
13. Do you provide installation manuals?
Yes.
Available documents:
- Datasheet
- Wiring diagram
- User manual
- Communication guide
14. Can you provide samples before bulk orders?
Yes.
Project evaluation and technical confirmation are supported.
15. Do you support worldwide shipping?
Yes.
Voltnex exports industrial power equipment worldwide.
Our Commitment To You
📦 Global Fast Shipping
📞 24/7 Technical Support
📄 Datasheet Available upon Request
🏭 OEM & ODM Manufacturing Support
🌎 Worldwide Industrial Power Solutions
发送查询
Looking for a reliable 315kW 400kW 450kW 500kW Three Phase Variable Frequency Drive VFD AC Inverter Manufacturer?
联系方式 Voltnex Power for:
✔ Factory quotation
✔ Customized VFD solutions
✔ Wholesale pricing
✔ Industrial project support
✔ Global distributor cooperation
Voltnex Power — Your Trusted China Manufacturer for High Power VFD Variable Frequency Drives, AC Inverters and Industrial Motor Control Solutions.
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