FG3G500-24PL-20 Axial Fan, 24VDC, 500mm, 5250 m3/h

The FG3G500-24PL-20 is a 24VDC axial fan engineered to deliver massive airflow while keeping noise at an almost whisper-quiet level, making it a standout choice for applications where both performance and acoustic comfort matter. This model pushes a remarkable 5250 m3/h of air at a mere 59 dB(A), which is softer than a typical conversation, allowing it to replace multiple smaller fans in ventilation systems without creating a distracting environment. Built around a 500mm impeller with glass-fiber reinforced polypropylene blades, it achieves high volume at a low 900 RPM, reducing mechanical wear and extending service life. The fan is powered by a BLDCDC102 brushless DC motor that operates on 24VDC (16-28V range) and draws only 168W, offering excellent efficiency for solar-powered, off-grid, and battery-backed installations. It delivers a maximum static pressure of 70 Pa, suitable for ducted setups with moderate resistance, and includes built-in protection features to safeguard against overcurrent and overvoltage conditions. The die-cast aluminum housing ensures robust durability in demanding industrial environments, while the lightweight composite impeller resists chemical corrosion and reduces rotational inertia. With IP55-rated construction, this fan can handle dust and water splashes, making it ideal for agricultural ventilation, telecom shelters, clean rooms, and energy storage cabinets. Certified to CE and RoHS standards, the FG3G500-24PL-20 from FANOVA combines low voltage safety with industrial-grade reliability, offering a smart upgrade for engineers seeking quiet, high-flow air movement.

The FG3G500-24PL-20 represents a careful balance between aerodynamic efficiency and mechanical robustness, designed for OEMs who demand high air volume without compromising on noise or power consumption. At its core is a 500mm axial impeller molded from polypropylene reinforced with 30% glass fiber, featuring 7 aerodynamically tuned blades that are optimized for low-speed, high-flow operation. This material choice delivers a 40% weight reduction compared to metal alternatives, which lowers the load on the motor bearings and enables the fan to achieve a maximum airflow of 5250 m3/h at just 900 RPM. The impeller's curvature and twist distribution minimize turbulence, contributing to a noise signature of only 59 dB(A), well below the 65 dB threshold for office, laboratory, and medical environments. The motor is a FANOVA BLDCDC102 brushless DC unit with a 102mm rotor diameter, featuring a 3-phase sensorless design with electronic commutation for silent and reliable operation. It operates across a wide 16 to 28VDC input range, drawing 7.0A at nominal 24V to produce 168W of shaft power, which translates to a healthy efficiency of over 85% for this class of fan. The motor is protected by a built-in electronic controller that provides soft-start, reverse polarity protection, overcurrent limiting, and stall detection, ensuring safe operation even under abnormal conditions. For variable airflow control, the fan supports PWM speed input and 0-10V analog control, allowing precise modulation from 20% to 100% speed, which is essential for demand-based ventilation in HVAC systems. The stator is wound with class H insulation (180°C rated) and the entire motor is encapsulated with a high-thermal-conductivity epoxy to dissipate heat effectively, even in confined enclosures. Mechanical reliability is reinforced by dual ball bearings rated for L10 life of 70,000 hours at 40°C ambient, ensuring over 8 years of continuous duty in typical HVAC applications. The die-cast aluminum endcaps and housing provide a rigid mounting structure that reduces vibration and maintains impeller alignment, while the external surface is coated with a corrosion-resistant paint for outdoor or humid environments. Electrical connection is made via a 135mm long 18AWG cable with stripped and tinned ends, suitable for direct wiring to a terminal block or connector. The fan achieves IP55 ingress protection, meaning it is protected against dust and low-pressure water jets from any direction, making it suitable for greenhouse ventilation, livestock barns, and outdoor telecom cabinets. Each unit is balanced according to ISO 1940 G2.5 quality grade, minimizing residual vibration, and is tested at the factory for air performance and noise. The FG3G500-24PL-20 complies with CE, RoHS, and REACH directives, and can be customized with different cable lengths, connectors, or shaft grounding on request for high-volume OEM orders. This model is particularly well-suited for solar-powered ventilation systems, battery-electric vehicles, fuel cell cooling, and any application where 24VDC is the primary power bus, offering an efficient and quiet solution that reduces system complexity.

DC Axial Fan
Type	FG3G500-24PL-20
Model	BLDCDC102

Ⅰ.When taking out the fan, do not directly lift the fan lead wire. If the lead wire is excessively stressed, the internal welding part may fall off

Ⅱ.Do not plug or unplug the fan lead plug when the fan is running

Ⅲ.If the fan does not work after starting, do not touch the impeller, rotor, or other parts, professional technical personnel are required to inspect the fan to prevent sudden start of the fan from causing hand or other personal injury

Ⅳ.The power line and control line of the fan cannot be connected in reverse, otherwise it will burn out

Ⅴ.Because of the soft start characteristics of the fan, to prevent personal injury, do not touch the impeller or other parts of the fan during powered on or running at low speeds

Ⅵ.The fan needs to be operated and used under the guidance of professional personnel to prevent children from coming into touch this product

Ⅶ.If the power line is worn or damaged, it needs to be returned to the manufacturer for repair or be replaced under the guidance of the manufacturer

Ⅷ.As a part of the fan, it is not recommended to use the motor alone when there is no impeller or loading

1. High Efficiency: The FG3G500-24PL-20 delivers 5250 m3/h at 70 Pa while drawing only 168W, achieving 30-40% energy savings over equivalent AC fans through FANOVA's BLDC motor technology.

2. Industrial-Grade Impeller: The 500mm galvanized steel sheet impeller resists corrosion, wear and high temperatures, making the fan suitable for harsh industrial environments and corrosive gas streams.

3. Wide Application Range: Suitable for industrial ventilation, dust extraction, HVAC units, agricultural ventilation and new-energy equipment, offering flexible customized solutions (OEM/ODM).

4. Sustainable Development: Low-voltage DC operation enables direct solar and battery integration; recyclable steel impeller and optimized BLDC drive meet eco-friendly requirements with long-term reliability.

5. Easy Installation and Maintenance: Compact 500mm footprint, 0-10VDC/PWM speed control, FG tach output and standard cable make the fan simple to wire, control and service.

Q1:What kind of payments do you support?

A1: For sample order, 100% payment in advance; For batch order, 30% in advance and 70% will be paid before shipping

Q2.Will you provide samples?

A2: Sample is available and can be delivered within 10days

Q3:How can I choose a more suitable model?

A3: We need the information like fan type, quantity, size, material, voltage, air flow and static pressure.

Q4:How can I place the order?

A4:  Usually quote you within 24 hours  after  we get your inquiry. First sign the PI,pay deposit,then we will arrange the production.After finished production need you pay balance. Finally we will ship the Goods.

Q5:About transportation

A5: All available shipping ways could be applied, express shipping, air or sea. Appointed shipping company or our own forwarders all could be used in shipment. Full-way tracking the cargos for you before the goods arrive. 

Q6:How long is the warranty period?

A6: We currently offer 3-year quality guarantee for our own products, and in response to current product problems, our company provides line support, and some customers have been able to improve their products.