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24V DC 146mm 144W Dual Inlet Centrifugal Blower for Indoor Air Recycling System

1. 146mm
2. IP44 protection level
3. Aluminum alloy motor with galvanized steel sheet impeller, fashion design.
4. Using Ball bearing, working life more than 50,000 hours
Availability:
Quantity:
  • FD3G146-24GL-91

  • Fanova

Nominal Voltage

VDC

24

Nominal voltage range

VDC

16~28

Current draw

A

6.0±10%

Speed(RPM)

min-1

1580±5%

Power consumption

W

144±10%

Sound Pressure Level

dB(A

61±5%

Max. Air Flow

CFM / m3/H

564.96/960

Max. Static Pressure

In.wg /Pa

1.0/250

Insulation class

~

Class B

Degree of protection

~

IP44

Control Input

~

0~10VDC / PWM

Signal Output

~

FG (Tach output )

Product Overview

The FD3G146-24GL-91 is a dual-inlet DC centrifugal fan engineered for balanced airflow and quiet operation in space-constrained applications. Featuring a 24VDC BLDC92 motor (16–28VDC range) and a 146mm galvanized steel impeller with 38 blades, it delivers 960 m³/h airflow at low noise levels (61 dB(A)). Ideal for electronics cooling, medical devices, and ventilation systems requiring symmetrical air intake and efficient performance.


Core Features

  1. Dual-Inlet Efficiency
    Dual-inlet design ensures balanced airflow and reduced turbulence, enhancing cooling consistency in compact enclosures. Operates efficiently at 1,580 RPM with wide voltage tolerance (16–28VDC) for stable performance.

  2. Quiet High-Flow Operation
    Generates substantial airflow (960 m³/h) at just 61 dB(A) – significantly quieter than comparable industrial fans. Ideal for noise-sensitive environments like labs or offices.

  3. Robust & Maintenance-Free
    Galvanized steel impeller and IP44-rated construction resist corrosion and dust ingress. Ball bearings support 50,000-hour lifespan (L10) in -25°C to 60°C environments.


Applications

  • Electronics Cooling: Server racks, telecom cabinets, and power supply units.

  • Medical Equipment: Ventilation in imaging devices, diagnostic tools, and dental units.

  • HVAC Auxiliary Systems: Air circulation in compact ducted systems or fan coils.

  • Industrial Automation: Cooling for PLCs, laser systems, and 3D printers.


FAQ

Q: Why choose dual-inlet over single-inlet fans?
A: Dual inlets provide balanced airflow, reduce turbulence, and prevent uneven stress on the motor – ideal for symmetrical cooling in confined spaces.

Q: Is it suitable for 24/7 operation?
A: Yes, rated for S1 continuous duty with a 50,000-hour lifespan (L10 at 40°C).

Q: How is speed controlled?
A: Use 0–10VDC or PWM signals via the yellow wire. FG output (4 pulses/revolution) enables RPM monitoring.

Q: Can it handle humid environments?
A: With IP44 protection and 5–90% operating humidity tolerance, it performs reliably in damp conditions.



DCD146-24GL-91

DD146-24GL-91

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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Fanova (Suzhou) Motor Technology Co., Ltd. is a leader in the industry, provides customers with diverse fan solutions with its professional, innovative, and environmentally friendly philosophy.

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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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