FB3G310-110AB-60 Backward Curved Centrifugal Fan, 110VDC, 310mm, 3723.9 m3/h

The FB3G310-110AB-60 is a heavy-duty backward centrifugal fan engineered for industrial DC microgrids where high-voltage, low-current distribution is critical. Its 110VDC motor (operating range 70~170VDC) delivers exceptional efficiency over long cable runs, reducing copper losses and simplifying power architecture. This fan generates a massive 3723.9 m3/h (2196.8 CFM) maximum airflow while simultaneously achieving a formidable 1031 Pa (4.12 in.wg) static pressure, making it ideal for high-resistance filtration systems and extensive duct networks. The 700W power rating and 2650 RPM speed enable single-fan replacement of multi-fan assemblies, slashing installation complexity and maintenance costs. A 310mm aluminium alloy impeller ensures high airflow at moderate speeds, contributing to quieter operation compared to smaller high-speed fans. The die-cast aluminium housing and endcaps provide robust structural integrity and effective heat dissipation, suitable for demanding industrial environments. Equipped with BLDC technology, the fan supports seamless speed control via PWM or 0-10V analog signals, integrated with standard industrial controllers. With an IP55 protection rating and Class B insulation, it withstands dust, moisture, and ambient temperatures up to 60°C. The fan comes with an 18AWG, 1000mm cable for straightforward installation. Ideal for HVAC, cleanrooms, industrial ventilation, and new energy applications, the FB3G310-110AB-60 is certified to CE and RoHS, ensuring global compliance. Choose FANOVA for a reliable, high-performance airflow solution tailored to modern DC power systems.

The FB3G310-110AB-60 represents a paradigm shift in industrial fan design, combining a 310mm diameter backward-curved impeller with a high-voltage 110VDC brushless DC motor to deliver an unparalleled balance of airflow, pressure, and efficiency. The impeller is fabricated from aluminium alloy plate, featuring a multi-blade backward-curved geometry that maximizes aerodynamic efficiency while minimizing turbulence and noise. This design enables a maximum airflow of 3723.9 m3/h and a maximum static pressure of 1031 Pa, ensuring robust performance in high-resistance applications such as HEPA-filtered cleanrooms and long, complex ductwork. The motor, designated BLDCDC102, is a sensorless brushless DC unit with a rotor diameter of 102mm, offering exceptional torque density and speed stability up to 2650 RPM. Operating from a 110VDC supply with a wide input range of 70 to 170VDC, the motor is perfectly suited for industrial DC microgrids where high voltage minimizes transmission losses and allows for thinner, cost-effective cabling. At full load, the fan draws 6.4A and consumes 700W, delivering a power-to-airflow ratio that outperforms many AC counterparts. Speed control is achieved through either a 0-10V analog input or a PWM signal, enabling precise modulation of airflow to match varying system demands, thereby enhancing energy savings and reducing operational noise. The fan's electrical design incorporates overcurrent, overvoltage, and thermal protection, safeguarding the motor against adverse conditions. The housing and endcaps are precision die-cast from aluminium alloy, providing excellent thermal conductivity and mechanical rigidity, which ensures long-term dimensional stability even under thermal cycling. The impeller is dynamically balanced to G2.5 grade, minimizing vibration and extending bearing life; the fan employs dual ball bearings rated for 50,000 hours at 60°C ambient, ensuring maintenance-free operation for years. The electrical interface consists of an 18AWG, 1000mm cable with tinned leads, compatible with standard industrial connectors. The fan achieves an IP55 protection rating, making it resistant to dust ingress and water splashes, suitable for outdoor or washdown environments. It is certified to CE and RoHS, meeting global safety and environmental standards. Additionally, the fan can be customized with different voltage options, speed outputs, and connector types to meet specific OEM requirements. FANOVA's rigorous quality control, including 100% run-in testing, guarantees reliable start-up and continuous operation. This fan is the ideal choice for engineers seeking a high-pressure, high-flow solution for advanced DC-powered ventilation systems.

DC Backward Curved Centrifugal Fan
Type	FB3G310-110AB-60
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 FB3G310-110AB-60 delivers 3723.9 m3/h at 1031 Pa while drawing only 700W, achieving 30-40% energy savings over equivalent AC fans through FANOVA's BLDC motor technology.

2. Industrial-Grade Impeller: The 310mm 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 310mm 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.