| Product Overview |
Medium-power industrial equipment—from booster pumps to plastic processing lines—requires a variable frequency drive (VFD) that balances performance, reliability, and practicality. Goldbell’s G500 4/5.5/7.5KW VFD delivers exactly that, merging optimized vector control with a user-friendly design and rugged industrial build. For equipment manufacturers, factory integrators, and automation engineers, this drive isn’t just a component; it’s a cost-effective solution that ensures stable motor operation across diverse industrial scenarios.
1. Industrial-Grade Design: Durability with Brand Distinction
The G500’s design is built for the demands of industrial environments while carrying Goldbell’s signature identity. Its robust enclosure stands up to high temperatures, humidity, and dust—common challenges in textile mills, food processing plants, and municipal water treatment facilities. Accented by Goldbell’s iconic blue stripe and clear brand logo, the drive adds a professional touch to control rooms and production lines, reinforcing trust in its quality.
Practicality is central to its design. Flexible mounting options (wall-mount or cabinet installation) adapt to space constraints, whether you’re outfitting a compact workshop or a large factory floor. The durable casing resists wear and tear from routine operation, while the clean industrial aesthetic blends seamlessly with existing machinery, making it a versatile addition to any medium-power setup.
2. Precise Motor Control: Tuned for Medium-Power Performance
At the core of the G500’s performance is its optimized vector control algorithm, engineered specifically for 4kW, 5.5kW, and 7.5kW applications. Unlike basic drives, it offers multiple control modes—V/F, vector, open-loop, and closed-loop—letting users tailor performance to their equipment. Closed-loop control ensures exact speed and torque regulation for sensitive tasks like food packaging, while V/F control provides simplicity for fans or pumps.
Key features set it apart: high torque output at low frequencies prevents stalling when starting heavy-load equipment like grinders or cutters, while smooth acceleration and deceleration minimize mechanical stress on conveyors. With an output frequency range of 0–600Hz and 150% overload capacity for 60 seconds, the G500 handles sudden load spikes—common in booster pumps or mixers—without disrupting operation. This precision translates to consistent production quality and reduced equipment wear.
3. Unwavering Reliability: Built to Minimize Downtime
Industrial downtime is costly, and the G500 is engineered to avoid it. A multi-level protection system safeguards the drive and connected motors from failures: overcurrent (OC), overvoltage (OV), undervoltage (UV), overheating (OH), short circuit, and input/output phase loss protections prevent damage from electrical fluctuations or mechanical faults.
Durability is enhanced by high-quality components and a built-in industrial fan that maintains optimal operating temperatures, even during extended use. Whether installed in a hot plastic processing plant or a dusty woodworking shop, the G500 delivers consistent performance. Its low failure rate reduces unplanned maintenance, keeping medium-power equipment running smoothly and efficiently.
4. User-Friendly & Cost-Effective: Efficiency That Saves
The G500 prioritizes ease of use, even for teams with limited technical expertise. Its intuitive LED interface and simple parameter setup let integrators configure speed limits, start/stop logic, and protection settings in minutes, eliminating the need for extensive training. Remote monitoring and integration are seamless too, thanks to RS485 (Modbus), CAN, and optional Ethernet communication—enabling central control of multiple drives in a production line.
Cost savings come from both energy efficiency and longevity. Optimized motor performance reduces power consumption by up to 30% compared to fixed-speed systems, cutting utility bills for high-use equipment like HVAC fans or circulation pumps. By reducing motor strain, the G500 also extends the lifespan of machinery, lowering replacement and maintenance costs. Its competitive pricing makes it a high-value choice for medium-power industrial applications.
Versatile Applications: Power Across Industries
The G500’s adaptability shines across sectors. It regulates supply, booster, and deep well pumps in water treatment systems; controls ventilation, exhaust, and cooling fans in factories; and ensures precise speed for mixers, grinders, and small conveyors. In automation lines (plastic, textile, food, packaging), it maintains consistent performance, while HVAC systems benefit from its energy-efficient control. Backed by CE and ISO9001 certifications, it meets global quality standards, making it suitable for international applications.
The Goldbell G500 4/5.5/7.5KW VFD is more than a drive—it’s a tailored solution for medium-power industrial needs. With its precise control, rugged reliability, and user-friendly design, it’s the ideal choice for anyone seeking to enhance efficiency without sacrificing performance. Backed by Goldbell’s expertise, it delivers the consistency that medium-power operations depend on.






Model:G500
Input Voltage:220V / 380V / 480V / 690V (customizable)
Power Range:4kW / 5.5kW / 7.5kW
Control Modes:V/F control / Vector control / Open-loop / Closed-loop control
Output Frequency:0–600 Hz
Overload Capacity:150% for 60 seconds
Communication:RS485 (Modbus), CAN, optional Ethernet
Protections:OC, OV, UV, OH, short circuit, input/output phase loss
Display:LED
Cooling:Built-in industrial fan
Mounting:Wall-mount / cabinet installation
Compliance:CE, ISO9001
(G500Design Highlights)
1. Industrial Appearance
Robust enclosure
Goldbell blue stripe
Clear brand logo
2. Precise Motor Control
Advanced vector algorithms
High torque at low frequency
Smooth acceleration and deceleration
3. Industrial-Grade Reliability
Multi-level protection system
Suitable for high temperature, humidity, and dusty environments
Durable high-quality components
4. Easy to Use
Intuitive interface
Simple parameter setup
Supports remote monitoring and integration
5. Cost-Effective
Optimized motor performance
Reduces energy consumption
Extends motor and equipment lifespan
Pumps: supply, booster, deep well, circulation
Fans: ventilation, exhaust, cooling
General equipment: mixers, grinders, cutters, small conveyors
Automation production lines: plastic, textile, food, packaging
HVAC systems
Municipal water treatment
Q: Is the G500 suitable for medium-power industrial environments?
A: Yes, designed with industrial-grade components for high temperature, humidity, and dusty environments.
Q: Does it support remote monitoring?
A: Yes, via RS485 (Modbus), CAN, or optional Ethernet.
Q: What maintenance is required?
A: Keep ventilation clear and remove dust periodically.
Q: Do you provide technical support?
A: Yes, full online support including wiring guidance, parameter setup, and troubleshooting.
For quotations and technical details aboutG500Series (4 / 5.5 / 7.5 kW), contact Goldbell:
Email: [email protected]
Phone: +86 17316086390