FB3G280-24PL-90 Backward Curved Centrifugal Fan, 24VDC, 280mm, 2286 m3/h

When your ventilation system must move serious air without tying into the AC grid, the FANOVA FB3G280-24PL-90 delivers a decisive advantage: a single 280 mm backward-curved centrifugal fan that shifts up to 2,286 m3/h while running on safe 24 VDC power. This model pairs a high-flow impeller with a 220 W brushless DC motor, making it the go-to choice for solar-powered ventilation, off-grid energy storage cabinets, and heavy-duty industrial air movement. The glass-fiber-reinforced polypropylene impeller keeps weight low and chemical resistance high, while the die-cast aluminum housing ensures long-term structural integrity. Rated at 24 VDC (16–28 V range) and drawing 9.2 A, the FB3G280-24PL-90 achieves 2,000 RPM with a maximum static pressure of 661 Pa, easily handling duct resistance and filter loading. Its 92 mm rotor, 20 AWG cable (500 mm), and IP-protected construction support harsh environments, and the electronically commutated motor delivers high efficiency with low noise at 69.9 dB(A). Certified for industrial reliability, this fan is ideal for telecom shelters, battery storage systems, and clean-room pre-conditioning, where low-voltage safety and high airflow must coexist. Choose the FB3G280-24PL-90 to replace multiple smaller fans, cut installation complexity, and gain precise speed control via PWM or analog input.

The FANOVA FB3G280-24PL-90 is a 24 VDC backward-curved centrifugal fan engineered for high-volume, low-voltage applications, combining a 280 mm impeller with a 220 W brushless DC motor to deliver up to 2,286 m3/h of airflow at free delivery. The impeller is molded from polypropylene reinforced with glass fiber, a material choice that provides exceptional stiffness-to-weight ratio, resistance to many chemicals, and reduced rotational inertia, enabling rapid speed changes and lower vibration. The housing and end caps are precision die-cast aluminum, offering excellent heat dissipation and dimensional stability, and are coated for corrosion resistance in humid or mildly aggressive industrial environments. The rotor diameter is 92 mm, and the motor is a 24 VDC electronically commutated (BLDC) type, which eliminates brush wear, extends service life, and allows variable speed control through a 0–10 V analog signal or PWM input, with a supply voltage range of 16–28 VDC. At the rated 24 VDC, the fan draws 9.2 A and consumes 220 W, spinning at a nominal 2,000 RPM, producing a maximum static pressure of 661 Pa and a sound pressure level of 69.9 dB(A), making it suitable for installations where noise is a consideration but not the primary constraint. The motor is protected against overcurrent, overvoltage, and over-temperature through an integrated electronic control board, and the insulation system meets Class B standards, ensuring safe operation in temperatures up to 60°C. Dual ball bearings support the shaft, rated for 50,000 hours at 40°C, providing reliable long-term operation in continuous-duty applications. The electrical interface uses a 20 AWG cable of 500 mm length, with stripped and tinned leads for secure connection to control systems. The fan is manufactured under ISO 9001 quality management and CE-certified, and optional IP55 protection is available for outdoor or wash-down environments. For new-energy systems, the 24 VDC platform allows direct integration with solar arrays and battery banks, eliminating the need for inverters and enhancing overall system efficiency. With its high airflow-to-power ratio, this fan reduces the number of units required in large ventilation arrays, cutting installation cost and maintenance points. FANOVA's OEM/ODM capabilities allow customization of cable length, connector type, speed control signal, and even impeller material, ensuring the FB3G280-24PL-90 fits your exact system architecture. Whether used in telecom shelters, agricultural ventilation, or industrial exhaust, this fan delivers the durability and performance expected from a leading centrifugal fan manufacturer.

DC Backward Curved Centrifugal Fan
Type	FB3G280-24PL-90
Model	BLDCDC92

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 FB3G280-24PL-90 delivers 2286 m3/h at 661 Pa while drawing only 220W, achieving 30-40% energy savings over equivalent AC fans through FANOVA's BLDC motor technology.

2. Industrial-Grade Impeller: The 280mm 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 280mm 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.