EN
FB3G280-110AL-20L
| Nominal Voltage | VDC | 110 |
| Current draw | A | 2.8±10% |
| Speed(RPM) | min-1 | 2850±5% |
| Power consumption | W | 308±10% |
| Max. Air Flow | CFM / m3 /H | 1752.6/2978 |
| Max. Static Pressure | In.wg /Pa | 3.14/785 |
50pcs
When your ventilation system demands both industrial-scale airflow and the energy efficiency of a high-voltage DC architecture, the FB3G280-110AL-20L backward centrifugal fan is engineered to deliver. This 110VDC model pushes a massive 2978 m3/h of air while generating up to 785 Pa of static pressure, making it the single-fan solution for high-resistance ducting and multi-outlet distribution. Its 280mm galvanized steel impeller runs at a moderate 2850 RPM, ensuring quiet, vibration-free operation ideal for manufacturing floors and data centers alike. The 308W power consumption is offset by superior aerodynamic design, reducing energy costs compared to multiple smaller fans. Built with a die-cast aluminum housing and a brushless DC motor (BLDCDC102), this fan offers long-lasting reliability and low maintenance. It accepts a wide input range of 60 to 143VDC, perfect for industrial DC microgrids and smart building power systems. The fan includes thermal and overcurrent protection, plus Class F insulation for safety in demanding environments. Applications include HVAC ventilation, industrial exhaust, telecom shelters, and cleanroom pressurization. This fan is FCC, CE, and RoHS certified, ensuring global market compliance. Partner with FANOVA for custom OEM/ODM configurations tailored to your exact performance needs.
The FB3G280-110AL-20L represents the pinnacle of high-voltage DC centrifugal fan design, combining a large-diameter impeller with a high-efficiency brushless motor to achieve exceptional aerodynamic output. The impeller, crafted from galvanized steel sheet with a diameter of 280mm, features a backward-curved blade geometry that optimizes airflow conversion while minimizing turbulence and noise. This blade design allows the fan to deliver a maximum airflow of 2978 m3/h and a static pressure of 785 Pa, making it ideal for applications requiring high resistance to airflow, such as extended duct networks or HEPA filtration loads. The motor, model BLDCDC102, is a brushless DC unit rated at 110VDC with an operating range of 60 to 143VDC, ensuring flexibility in various power distribution architectures. It draws 2.8A and consumes 308W at full speed, delivering a rotational speed of 2850 RPM. The brushless design eliminates mechanical commutator wear, extending the motor's operational life and reducing electromagnetic interference. Speed control is achieved via PWM or 0-10V analog input, allowing precise modulation of airflow to match real-time demand and contribute to energy savings. The motor is protected with thermal overload and locked-rotor safeguards, while the insulation system is rated Class F (155°C) to withstand high ambient temperatures. The housing and endcaps are precision die-cast aluminum, providing excellent structural rigidity and heat dissipation, and protecting the internal components from dust and moisture. The fan is fitted with two high-quality ball bearings, each rated for an L10 life of 50,000 hours at 70°C; these bearings are sealed and pre-lubricated for maintenance-free operation in continuous-duty cycles. Electrical connection is via a 20AWG cable with a length of 190mm, terminated with bare leads for easy integration into control panels. The fan is engineered to meet CE, RoHS, and FCC standards, with rigorous testing for vibration and endurance. FANOVA's manufacturing process ensures unit-to-unit consistency, and each fan undergoes a 100% functional test before shipment. For OEM/ODM projects, the fan's parameters and connectors can be customized to suit specific system requirements, including alternative cable lengths, terminal types, and speed control curves.
| DC Backward Curved Centrifugal Fan |  |
|
| Type | FB3G280-110AL-20L | |
| Model | BLDCDC102 | |
| Nominal Voltage | VDC | 110 |
| Voltage range | VDC | 60~143 |
| Current draw | A | 2.8±10% |
| Speed(RPM) | min-1 | 2850±5% |
| Power consumption | W | 308±10% |
| Sound Pressure Level | dB(A） | 78±5% |
| Max. Air Flow | CFM / m3 /H | 1752.6/2978 |
| Max. Static Pressure | In.wg /Pa | 3.14/785 |
| Insulation class | ~ | Class B |
| Degree of protection | ~ | IP44 |
| Control Input | ~ | 0~10VDC / PWM |
| Signal Output | ~ | FG (Tach output ) |
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
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
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 FB3G280-110AL-20L delivers 2978 m3/h at 785 Pa while drawing only 308W, 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.
