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48V DC 280mm 395W Air Flow Ventilation Fan Running Quietly Backward Centrifugal Fan

1. 280mm
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:
  • FB3G280-48PL-20

  • Fanova

Nominal Voltage

VDC

48

Nominal voltage range

VDC

36~57

Current draw

A

8.2±10%

Speed(RPM)

min-1

2610±5%

Power consumption

W

395±10%

Sound Pressure Level

dB(A

78±5%

Max. Air Flow

CFM / m3/H

1814.934/2286

Max. Static Pressure

In.wg /Pa

3.108/777

Insulation class

~

Class B

Degree of protection

~

IP44

Control Input

~

0~10VDC / PWM

Signal Output

~

FG (Tach output )

Product Overview

The FB3G280-48PL-20 is a high-performance 280mm DC centrifugal blower designed for industrial ventilation systems. Operating at 48V DC with 395W power consumption, it delivers 3084 m³/h max airflow at 777 Pa static pressure while maintaining 78 dB(A) noise levels. Featuring IP44 protection and wide voltage tolerance (36-57V DC), it excels in demanding applications requiring robust airflow and energy efficiency.


Key Features

  1. Industrial-Grade Airflow

    • 3084 m³/h airflow capacity with 777 Pa static pressure - ideal for ducted systems with high resistance.

  2. Energy-Efficient DC Drive

    • 395W power consumption with 36-57V wide input range, saving 20% energy vs. AC equivalents.

  3. Vibration-Optimized Design

    • 6-blade glass-fiber reinforced impeller with G6.3 dynamic balancing ensures smooth operation at 2610 RPM.

  4. Precision Control Interface

    • Standard 0-10VDC/PWM input + FG tach signal (3 pulses/revolution) for accurate speed regulation.

  5. Environmental Resilience

    • IP44 protection against dust/water splashes; operates from -25°C to 60°C.


Q&A: Why Choose This Blower?

Q: Can it handle long duct runs with multiple filters?
A:  High-pressure capable. 777 Pa static pressure overcomes resistance in 20m ducts with HEPA filters.

Q: Is it suitable for solar/battery-powered systems?
A:  DC-optimized efficiency. 36-57V voltage range works seamlessly with battery banks and solar controllers.

Q: Does it support predictive maintenance?
A:  Real-time monitoring ready. FG tach output (3 pulses/rev) enables RPM tracking for condition-based maintenance.


Typical Applications

  • Industrial Ventilation: Welding fume extraction, chemical plant exhaust

  • Renewable Energy: Battery room cooling for solar farms, EV charging stations

  • Material Handling: Pneumatic conveying systems, dust collection

  • Commercial HVAC: Large restaurant kitchen hoods, gymnasium air exchange


DCB280-48PL-20

DB280-48PL-20

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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+86-512-66152110
+86-17715518438
Sales01@fanova-tech.com
+8617715518438
+8617715518438
No.739, Fuyuan Road, Xiangcheng District, Suzhou, Jiangsu, P.R. China 215133
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