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48V DC 133mm 42W High Rational Speed Backward Centrifugal Bracket Fan for Fast Extraction of Dust And Harmful Gases

1. 133mm
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:
  • FK3G133-48PL-71

  • Fanova

Nominal Voltage

VDC

48

Nominal voltage range

VDC

36~57

Current draw

A

0.875±10%

Speed(RPM)

min-1

4460±5%

Power consumption

W

42±10%

Sound Pressure Level

dB(A

73±5%

Max. Air Flow

CFM / m3/H

250.11/425

Max. Static Pressure

In.wg /Pa

1.96/490

Insulation class

~

  Class B

Degree of protection

~

IP44

Control Input

~

0~10VDC / PWM

Signal Output

~

FG (Tach output )

Product Overview

The FK3G133-48PL-71 is a compact yet high-performance DC centrifugal fan engineered for space-constrained industrial cooling and ventilation systems. Featuring a 133mm glass-fiber-reinforced impeller and brushless DC motor (BLDC72), it delivers exceptional static pressure in a minimal footprint. Its energy-efficient design makes it ideal for applications requiring powerful airflow in confined installations.


Core Features

  1. High-Speed Precision Engineering
    Operates at 4,460 RPM to generate 490 Pa static pressure – exceptional for its size – enabling effective cooling in high-resistance environments like dense electronics enclosures.

  2. Lightweight Composite Construction
    Utilizes glass-fiber-reinforced propylene impellers for reduced inertia and corrosion resistance, paired with die-cast aluminum housing for vibration-free operation at high speeds.

  3. Optimized Energy Efficiency
    Draws only 42W at 48VDC while maintaining robust airflow (425 m³/h), reducing operational costs in continuous-duty applications like medical or lab equipment cooling.

  4. Plug-and-Play Control Integration
    Supports standard 0–10VDC/PWM speed modulation with tachometer feedback (2 pulses/revolution) for seamless integration into existing control systems.


Applications

  • Compact Electronics Cooling: Server racks, telecom cabinets, and power converters

  • Medical Equipment Ventilation: Imaging devices, analyzers, and diagnostic tools

  • Industrial Automation: Robotic control units and laser systems

  • Audio-Visual Systems: Projectors and high-power amplifier cooling


FAQ

Q1: How does its noise level (73 dB(A)) impact installations?
Designed for industrial environments; use vibration-damping mounts in noise-sensitive applications. Optimal for spaces where cooling performance outweighs acoustic requirements.

Q2: Can it operate in variable voltage conditions?
Yes. Tolerates 36–57VDC input, maintaining stable performance during power fluctuations common in mobile or backup power scenarios.

Q3: Why choose centrifugal over axial fans here?
Superior static pressure (490 Pa vs. typical axial fan’s <250 Pa) allows effective airflow through filters, heat sinks, or ducted systems where resistance is critical.

Q4: Is the FG signal (2 pulses/rev) compatible with standard controllers?
Yes, but verify pulse-count requirements in your monitoring system. Lower pulse count simplifies signal processing for basic RPM monitoring.


DCW133-48PL-71

DW133-48PL-71

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

If you have any questions, please feel free to contact us at any time!

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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