This is the 25489 AC brushless fan produced by Guangzhou Mega Technology Co., Ltd. It has a diameter of 254 mm and a thickness of 89 mm. It has ball bearings or oil-containing bearings. It uses an aluminum alloy frame and a UL94V-0 grade plastic impeller. It weighs 2.6 kg and focuses on durability and fire safety. The product is available in 110V and 220V voltage specifications. At a speed of 2600-3000 RPM, it can generate a high air volume of 23.2-24.3 cubic meters per minute (820-860 CFM) and a static pressure of 20.1-21 mm water column (0.79-0.83 inches). The noise level is 75-80 dB-A. Given their large size, high air volume and relatively high noise, these fans are mainly suitable for industrial or commercial fields, such as cooling of large electronic equipment, industrial ventilation, and applications such as telecommunications equipment that require strong air flow.

Parameter Value

Product Type:

1. Size: 254x254x89mm
2. Bearing Type: ball、Sleeve
3. Frame Material: Aluminum (UL94V-0)
4. Blade Material: Plastic (UL94V-0)
5. Weight:2600g
6. Rated Voltage: 110V,220V
7. Rated Current: 0.50/0.58A（110V）, 0.34/0.43A（220V）
8. Rated Input Power:60/75W(110V), 74/84W(220V)
9. Speed:2600/3000RPM
10. Air Flow:820/860CFM
11. Maximum Air Pressure:20.1/21mH2O
12. Noise Level:75/80dB-A

Model	Rated Voltage (VAC)	FREQ (HZ)	Rated Current (Amp)	Rated Power (Watt)	Rated Speed (RPM)	Maximum Air Flow (CFM)	Maximum Static Pressure (mmH2O)	Noise (dB-A)
MG25489B110X	110	50/60	0.50/0.58	60/75	2600/3000	820/860	20.1/21	75/80
MG25489B220X	220	50/60	0.34/0.43	74/84	2600/3000	820/860	20.1/21	75/80

Key Features and Advantages:

Key Features:

1.  Size and Construction:

1.   Large Dimensions: With a diameter of Φ254 mm and a thickness of 89 mm, it is a large fan capable of handling significant airflow.

2.   Durable and Safe Materials: The outer frame is made of aluminum alloy, and the impeller and fan blades use UL94V-0 rated flame-retardant plastic, ensuring structural strength, durability, and fire safety in abnormal conditions.

3.   Weight: A single unit weighs 2.6 kg, indicating robust manufacturing quality.

2.  Performance Parameters:

1.   Dual Voltage Support: Offers both 110V and 220V rated voltage options, supporting 50/60 Hz frequencies, adaptable to different global power standards.

2.   High Airflow: Maximum airflow reaches 23.2-24.3 M$^3$/Min (820-860 CFM), demonstrating powerful air circulation capability.

3.   High Static Pressure: Maximum static pressure is 20.1-21 mmH2O (0.79-0.83 INCH), meaning the fan can effectively overcome airflow resistance, suitable for applications where air needs to pass through confined spaces or filters.

4.   High Speed: Rated speed ranges between 2600-3000 RPM, which is fundamental for its high airflow and static pressure.

5.   Relatively High Noise: Noise level is 75-80 dB-A. This is a typical range for industrial fans of this size and performance, but might require consideration in noise-sensitive environments.

3.  Selectable Bearing Types:

1.   Offers two options: “Ball bearing” and “Sleeve bearing.”

4.  Detailed Model Coding Rule:

1.   A clear model coding system facilitates customer understanding of product configurations, especially bearing types and special function codes.

5.  P-Q Curve and Dimension Drawing:

1.   Provides an intuitive P-Q (Pressure-Flow) performance curve graph to help users understand the fan’s behavior at different operating points.

2.   Detailed dimension drawing, including key information like mounting holes, makes it easy to integrate into various equipment.

Main Advantages:

1.  Powerful Cooling/Ventilation Capability: Due to its large size, high airflow, and high static pressure, it can provide efficient cooling or ventilation solutions for large equipment or spaces, particularly suitable for high heat density applications.

2.  Wide Applicability:

1.   Global Compatibility: Supports 110V/220V dual voltage and 50/60Hz frequency, allowing for worldwide application and reducing the complexity of international procurement and deployment.

2.   Broad Application Areas: Suitable for industrial and commercial environments that require high airflow and static pressure, such as large cabinets, server racks, industrial control cabinets, telecommunications equipment, medical devices, and various mechanical equipment requiring forced ventilation.

3.  High Reliability and Safety:

1.   Durable Materials: The use of an aluminum alloy frame and UL94V-0 flame-retardant plastic ensures long-term stable operation in harsh environments and enhances the overall safety of the equipment.

2.   Bearing Options: The availability of ball bearings generally implies a longer service life and lower maintenance requirements, improving equipment reliability.

4.  Professional Design and Transparent Information:

1.   Detailed technical parameter tables, P-Q curves, and dimension drawings provide comprehensive technical support for engineers and purchasing personnel, facilitating product selection and system integration.

2.   Clear model coding rules enhance product information transparency.

Applications

1. Large Industrial Control Cabinets and Electrical Enclosures:

1. Specific Equipment: PLC (Programmable Logic Controller) cabinets, inverter cabinets, high/low voltage distribution cabinets, servo drive cabinets, robot control boxes, etc.
2. Analysis: These control cabinets typically integrate a large number of heat-generating electronic components, requiring efficient heat dissipation to ensure stable operation and extended lifespan. The fan’s high airflow and static pressure capabilities enable it to effectively exhaust heat from the enclosure, maintaining sufficient ventilation even with filters or narrow air ducts.

1. Telecommunication Base Stations and Network Equipment:

1. Specific Equipment: Outdoor telecom base station cabinets, data center server racks, network switches, router cabinets, etc.
2. Analysis: Telecommunication and data center equipment operate 24/7, with significant power consumption and heat generation. This high-airflow fan provides the necessary forced air cooling to maintain equipment within an appropriate temperature range, preventing overheating that could lead to performance degradation or failure.

1. Industrial Automation Equipment and Machinery:

1. Specific Equipment: Laser cutting machines, CNC machine tools, large printing presses, injection molding machines, industrial furnaces (cooling zones), etc.
2. Analysis: These industrial machines generate substantial heat during operation, requiring powerful fans for localized or overall heat dissipation to protect internal sensitive components and improve production efficiency. The high static pressure capability helps overcome the resistance of complex internal cooling channels within the equipment.

1. Medical Imaging Equipment and Laboratory Equipment:

1. Specific Equipment: MRI (Magnetic Resonance Imaging) systems, CT (Computed Tomography) scanners, large biochemical analyzers, constant temperature and humidity chambers, etc.
2. Analysis: Medical equipment demands extremely high stability and precision, making heat dissipation of internal precision electronic components crucial. Large, high-airflow fans can ensure these devices operate for extended periods without performance or diagnostic results being affected by overheating.

1. New Energy Sector:

1. Specific Equipment: Wind turbine generator control cabinets, solar inverter cabinets, energy storage system battery cabinets (for some large-scale systems).
2. Analysis: New energy equipment generates heat during power generation and energy conversion, especially in outdoor or high-temperature environments, requiring reliable cooling systems to maintain performance and extend lifespan.

1. HVAC/R (Heating, Ventilation, Air Conditioning, and Refrigeration) Systems – Large Ventilation and Exhaust Equipment:

1. Specific Equipment: Large commercial air conditioning units, fresh air systems, exhaust systems, air handling units (AHUs), etc.
2. Analysis: Although not exclusively an HVAC fan, its large airflow and static pressure characteristics allow it to serve as a component in certain large-scale ventilation or exhaust sub-systems, used for air circulation, smoke, or heat extraction within buildings.

1. Power System Equipment:

1. Specific Equipment: Transformer cooling systems (auxiliary), switchgear, DC power distribution panels, etc.
2. Analysis: Power equipment generates heat during operation, and the fan can be used to enhance heat dissipation, ensuring the electrical performance and safety of the equipment.

Our advantage
Guangzhou Mega Technology Co., Ltd. is located in Guangzhou, Guangdong Province. We benchmark against leading cooling fan manufacturers like Delta Electronics, Nidec Corporation, Sunon, Sanyo Denki, and Orion Fans. Offering AC, DC, and EC fans, we provide customized cooling solutions for various industrial and commercial applications. Our strong R&D and technical expertise ensure our products match top manufacturers’ performance at significantly lower prices.

We pride ourselves on delivering tailored solutions to meet unique client needs. Our team collaborates closely with customers to design products that optimize cooling performance, energy efficiency, and reliability. Whether for electronic devices, industrial machinery, or commercial systems, Guangzhou Mega Technology Co., Ltd. is dedicated to providing high-quality, cost-effective solutions that exceed expectations. Our commitment to innovation and customer satisfaction keeps us at the forefront of the cooling fan industry.

Reasons to Choose Us

1. Factory Direct Sales, Preferential Price: We are the manufacturer, eliminating intermediate links, and providing you with the most competitive price.
2. Quality Assurance, Worry-Free After-Sales: We provide perfect after-sales service, so you can buy without worry.
3. Professional Team, Customized Service: We have a professional R & D team to provide you with customized solutions.