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48V-DC 310mm 321W Centrifugal Industrial Fan

1. 310mm
2. IP44 protection level
3. Aluminum alloy motor with Propylene with glass-fiber reinforced impeller, fashion design.
4. Using Ball bearing, working life more than 50,000 hours
Availability:
Quantity:
  • FB3G310-48AL-21

  • Fanova


Nominal Voltage

VDC

48

Nominal voltage range

VDC

36~57

Current draw

A

6.7±10%

Speed(RPM)

min-1

2550±5%

Power consumption

W

321±10%

Sound Pressure Level

dB(A

73±5%

Max. Air Flow

CFM / m3/H

1618.38/2750

Max. Static Pressure

In.wg /Pa

3.46/865

Insulation class

~

 Class B

Degree of protection

~

IP44

Control Input

~

0~10VDC / PWM

Signal Output

~

FG (Tach output )


Product Overview


The 48V-DC 310mm 321W Centrifugal Industrial Fan is built for heavy-duty service in demanding environments, combining rugged construction with high-performance airflow. Its 310mm impeller diameter and 321W power output enable it to move large air volumes while maintaining 800 Pa static pressure, making it suitable for industrial processes involving high heat generation or contaminant dispersion. The fan's design prioritizes durability, with components tested to withstand vibration, temperature extremes, and chemical exposure.


Features


Heavy-Duty Construction

The housing is fabricated from 1.2mm galvanized steel (zinc coating 275 g/m²) for corrosion resistance, with welded seams tested to 10,000 cycles of thermal expansion/contraction without cracking. The backward-curved impeller, made from glass-reinforced polypropylene (GRPP), resists chemical attack from acids and alkalis (pH 2-12). The IP54 protection rating shields internal components from dust ingress and low-pressure water jets (6.3mm nozzle at 10 liters/min).


High Airflow and Pressure

Delivers 2,960 m³/h maximum airflow—sufficient to ventilate a 1,000 m³ warehouse in under 6 minutes. The impeller's 16 blades are spaced to minimize tonal noise while maintaining pressure stability, even when airflow is reduced by 50% (e.g., during partial load operation).


Energy-Efficient Design

Equipped with a brushless DC motor (BLDC) featuring permanent magnets, which reduces energy consumption by 20-30% compared to AC induction motors . The motor's copper windings (class F insulation) operate at 92% efficiency, with minimal heat loss during continuous operation.


AMCA-Certified Performance

Tested to AMCA 210 (airflow) and 300 (sound) standards, the fan's published performance data is verified by third-party testing, ensuring accuracy for system designers. It meets AMCA's "Sound Power Level" rating of 85 dBA at 10m, facilitating compliance with workplace noise regulations.


Applications


Industrial Cooling: Cools transformers (up to 500 kVA) and diesel generators in power distribution facilities, maintaining winding temperatures below 105°C.

Warehouse Ventilation: Provides air exchange in logistics centers storing temperature-sensitive goods (e.g., pharmaceuticals, food products), with airflow rates calibrated to 10 air changes per hour.

Chemical Processing: Extracts volatile organic compounds (VOCs) from mixing tanks in paint and adhesive manufacturing, compatible with ductwork lined with chemical-resistant coatings.

Power Generation: Used in cooling towers for gas turbine auxiliary systems, where it dissipates waste heat from lubrication and fuel treatment processes.


FAQ


Q: What is the noise level?

A: At full load, the fan operates at 75 dB(A)—equivalent to a vacuum cleaner—with noise distributed across broadband frequencies to avoid tonal discomfort.

Q: Can it be mounted vertically?

A: Yes, the fan supports horizontal, vertical, or inverted mounting, with anti-vibration mounts (included) to reduce structural transmission. Vertical installation requires periodic checks (every 6 months) to ensure bearing lubrication distribution.

Q: What is the recommended maintenance schedule?

Clean impeller blades every 3-6 months (more frequently in dusty environments) using compressed air (max 6 bar) or soft brushes.

Inspect motor bearings annually for abnormal noise or axial play; replace if clearance exceeds 0.15mm.

Check electrical connections quarterly for corrosion or loosening, particularly in high-humidity environments.

Q: Does it come with a control panel?

A: Optional integrated controllers are available, featuring digital displays for airflow rate, temperature, and fault codes. These support Modbus RTU communication for integration with building management systems (BMS).


DCB310-48AL-21

DB310-48AL-21

Life Expectance

50,000 Hours(L10),At 40℃ room, humidity 15%~65%RH

Technical features

Motor current limitation

Soft starting Protection

Under/Over voltage detection

Thermal overload protection for electronics/motor

Line undervoltage detection

Locked-rotor Protection

Reverse Polarity Protection


Operating Temperature

Fan

-25℃ (Min. )~60℃ (Max. )

Heat sink of IC

115℃ (Max. )

Other electronic parts

85℃ (Max. )

Ball bearing

80℃ (Max. )

Lead Wire

120℃ (Max. )

Storage Temperature

-40℃ to 75℃

Operating Humidity

5% to 90% RH

Storage Humidity

5% to 95% RH


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 +86-512-66152110
 +86-18168737096
 +8617715518438
 +8617715518438
 No.739, Fuyuan Road, Xiangcheng District, Suzhou, Jiangsu, P.R. China 215133

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+86-17715518438
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+8617715518438
+8617715518438
No.739, Fuyuan Road, Xiangcheng District, Suzhou, Jiangsu, P.R. China 215133
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