EN
FB3G280-24PL-90
| Nominal Voltage | VDC | 24 |
| Current draw | A | 9.2±10% |
| Speed(RPM) | min-1 | 2000±5% |
| Power consumption | W | 220±10% |
| Max. Air Flow | CFM / m3 /H | 1345.311/2286 |
| Max. Static Pressure | In.wg /Pa | 2.644/661 |
50pcs
Brief Description
FB3G280-24PL-90 is a 280mm backward curved centrifugal fan driven by a 24VDC brushless DC motor, delivering up to 2286 m3/h of airflow at 661 Pa static pressure. The low-voltage DC architecture makes it a natural fit for solar-powered ventilation, off-grid battery rooms, telecom shelters and new-energy equipment where 24VDC is already available, eliminating the need for AC-DC conversion and boosting system efficiency. Its high flow rate lets a single unit replace several smaller fans in large-space air exchange, cutting installation cost, part count and noise floor. Inside, FANOVA's BLDC92 EC motor spins the glass-fiber reinforced polypropylene impeller at 2000 RPM while drawing just 220W - up to 30-40% less energy than an equivalent AC fan. The die-cast aluminum housing, IP44 protection and Class B insulation keep the fan reliable in dusty or damp industrial settings. Speed is fully controllable via 0-10VDC or PWM input, with an FG tachometer output for closed-loop monitoring. Certified CE, RoHS and ISO9001, backed by a 3-year warranty and a 50,000-hour design life, the FB3G280-24PL-90 is a dependable building block for OEM ventilation, cooling and HVAC systems.
Product Specification
FB3G280-24PL-90 is a brushless DC backward curved centrifugal fan engineered for high-static-pressure ventilation and cooling in industrial and commercial systems. The FB3G series couples a backward curved impeller with a compact BLDC92 external-rotor motor to achieve high airflow, high pressure and low noise in a space-saving footprint.
ELECTRICAL: The BLDC92 motor operates from 24VDC (16-28VDC operating range) and draws 9.2A at rated load, consuming 220W. Rated speed is 2000 RPM (tolerance ±5%). The drive supports 0-10VDC analog or PWM speed control and provides an open-collector FG tachometer output for speed feedback and closed-loop regulation. Soft-start limits inrush current and mechanical shock on power-up.
IMPELLER & HOUSING: The 280mm impeller is injection-molded from polypropylene reinforced with glass fiber, offering high dimensional stability, chemical resistance and low inertia for fast dynamic response. Die-cast aluminum end caps provide excellent heat dissipation and structural rigidity, keeping the fan light yet strong at 661 Pa maximum static pressure.
RELIABILITY & PROTECTION: Rated IP44 for protection against solid objects and splashing water, with Class B insulation. Ball bearings deliver a design life above 50,000 hours. Integrated electronic protection includes over-current, reverse-polarity, locked-rotor and thermal overload safeguards.
WIRING & INSTALLATION: Standard lead is 20AWG with 500mm cable length; cable length and connectors can be customized for OEM projects. Wiring follows the connection diagram in this specification, with a simple-connection option for rapid integration.
APPLICATIONS: solar power stations, off-grid battery enclosures, telecom cabinets, industrial control panels, HVAC units, air purifiers and new-energy EV charging stations.
Available for OEM/ODM with customized voltage, cable, connector and marking. CE, RoHS and ISO9001 certified with a 3-year warranty.
Nominal Date
| DC Backward Curved Centrifugal Fan |  |
|
| Type | FB3G280-24PL-90 | |
| Model | BLDC92 | |
| Nominal Voltage | VDC | 24 |
| Voltage range | VDC | 16~28 |
| Current draw | A | 9.2±10% |
| Speed(RPM) | min-1 | 2000±5% |
| Power consumption | W | 220±10% |
| Sound Pressure Level | dB(A） | 69.9±5% |
| Max. Air Flow | CFM / m3 /H | 1345.311/2286 |
| Max. Static Pressure | In.wg /Pa | 2.644/661 |
| Insulation class | ~ | Class B |
| Degree of protection | ~ | IP44 |
| Control Input | ~ | 0~10VDC / PWM |
| Signal Output | ~ | FG (Tach output ) |
Connection diagram
Remarks：
Ⅰ. Standard cable length Refer to the figure below. The length of cable can be customized
Ⅱ. Conventional mode is 0-10V/PWM control, can optionally replace the communication protocol, detailed communication protocol, please contact technical personnel
Product drawing
Aerodynamic Performance Charts
Test condition：
Ⅰ.The test data is obtained under the specified environment conditions and installation mode
Ⅱ.Input Voltage---Operating voltage
Ⅲ.Temperature---Room temperature 25℃
Ⅴ.Humidity---65%RH
Safety Requirements
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
Advantages:
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. Low Noise: Advanced backward curved blade design with optimized impeller geometry keeps sound pressure at 69.9 dB while maintaining high airflow and pressure.
3. Wide Application Range: Suitable for solar power stations, telecom shelters, off-grid battery rooms, HVAC units, air purifiers and industrial control panels, offering flexible customized solutions (OEM/ODM).
4. Sustainable Development: Low-voltage DC operation enables direct solar and battery integration; glass-fiber reinforced plastic materials meet eco-friendly requirements and withstand harsh conditions with long-term reliability.
5. Easy Installation and Maintenance: Compact 280mm footprint, 0-10VDC/PWM speed control, FG tach output and 500mm standard cable make the fan simple to wire, control and service.
FAQ
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.
