FD3G225-48GL-20 Dual Inlet Centrifugal Blower, 48VDC, 225mm, 3008 m3/h

The FD3G225-48GL-20 is a heavy-duty dual inlet centrifugal blower engineered to replace multiple smaller fans in high-demand ventilation systems, delivering a massive air flow of 3008 m3/h at zero static pressure. With a maximum static pressure of 828 Pa, this 48VDC blower excels in long duct runs and high-resistance filtration setups, making it a top choice for telecom, new energy, and industrial HVAC applications. Powered by a brushless DC motor (BLDCDC102) rated at 450 W and 9.0 A, it operates efficiently across a voltage range of 36 to 57 VDC, aligning with standard -48VDC telecom power supplies. The cold-rolled steel impeller and die-cast aluminum housing ensure industrial-grade durability, resisting corrosion and wear in harsh environments. Its noise level of 66 dB(A) remains manageable for equipment rooms, while the 20AWG cable (295 mm) simplifies integration. Backed by FANOVA's OEM/ODM expertise, this blower is certified for reliability and offers long-life bearings for maintenance-free operation. Ideal for battery energy storage systems, telecom cabinets, and cleanroom HVAC, it delivers uncompromising performance where single-fan solutions are required.

The FD3G225-48GL-20 is a dual inlet centrifugal blower designed for high-volume, high-pressure applications, featuring a 225 mm impeller constructed from cold-rolled steel plate for superior mechanical strength and resistance to deformation under continuous operation. The impeller's blade geometry is optimized for forward-curved operation, maximizing air flow efficiency at 3008 m3/h while achieving a static pressure of 828 Pa, suitable for overcoming duct resistance, HEPA filters, and multi-outlet distribution systems. The motor is a 48VDC brushless DC unit (BLDCDC102) with a rotor diameter of 102 mm, rated at 450 W and 9.0 A, operating over a voltage range of 36 to 57 VDC, making it directly compatible with -48VDC telecom power plants. Speed control is achieved via PWM or 0-10V analog input (configurable), allowing precise modulation from 0 to 900 RPM, while the integrated drive electronics provide overcurrent, overvoltage, and thermal protection, plus reverse polarity safeguards. The motor features high-grade ball bearings with an L10 life exceeding 50,000 hours, ensuring prolonged service in industrial environments. The housing is die-cast aluminum alloy, offering excellent heat dissipation and dimensional stability, and is sealed to IP54 for dust protection. Electrical connection is via a 20AWG cable (295 mm) with tinned leads and strain relief, compatible with standard telecom connectors. The blower is manufactured under ISO9001 quality systems and complies with CE and RoHS directives. It undergoes 100% run-in testing to verify air flow, pressure, current, and noise parameters, ensuring consistent performance. With its robust steel impeller, high static pressure capability, and 48VDC integration, this blower is ideal for telecom DCIM systems, battery cooling, and high-resistance HVAC installations, offering an economical single-fan alternative to multi-fan arrays.

DC Dual Inlet Centrifugal Blower
Type	FD3G225-48GL-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 FD3G225-48GL-20 delivers 3008 m3/h at 828 Pa while drawing only 450W, achieving 30-40% energy savings over equivalent AC fans through FANOVA's BLDC motor technology.

2. Industrial-Grade Impeller: The 225mm 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 225mm 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.