Home / Products / Centrifugal Fans / Backward Centrifugal Fan With Support Bracket / 48V DC 133mm 28W High Speed Backward Centrifugal Air Exchange Temperature Regulartion Fan with Bracket

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48V DC 133mm 28W High Speed Backward Centrifugal Air Exchange Temperature Regulartion Fan with Bracket

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-70

  • Fanova

Nominal Voltage

VDC

48

Nominal voltage range

VDC

36~57

Current draw

A

0.6±10%

Speed(RPM)

min-1

3800±5%

Power consumption

W

28±10%

Sound Pressure Level

dB(A

63±5%

Max. Air Flow

CFM / m3/H

223.63/380

Max. Static Pressure

In.wg /Pa

1.372/343

Insulation class

~

  Class B

Degree of protection

~

IP44

Control Input

~

0~10VDC / PWM

Signal Output

~

FG (Tach output )

Product Overview

The FK3G133-48PL-70 is an industrial-grade DC backward centrifugal fan with a support bracket, engineered for demanding ventilation and cooling applications. It integrates a high-efficiency BLDC72 brushless motor and operates at a nominal 48VDC (with a wide 36–57VDC range). Designed for reliability, it delivers up to 380 CFM airflow and 343 Pa static pressure while maintaining low noise levels. Its rugged construction and IP44 rating ensure resilience in harsh environments, making it ideal for industrial machinery, HVAC systems, and electronic enclosures.


Core Features

  1. Robust Industrial Performance
    Engineered with a 133mm glass-fiber-reinforced impeller and ball bearings, it sustains 3800 RPM under heavy loads. The wide voltage tolerance (36–57VDC) ensures stable operation amid power fluctuations, while its IP44 protection guards against dust and water ingress.

  2. Smart Control & Diagnostics
    Supports dual-mode input (0–10VDC or PWM) for precise speed tuning and includes an FG tachometer signal for real-time RPM monitoring. Built-in safeguards—soft-start, reverse-polarity protection, and motor-current limiting—prevent damage during anomalies.

  3. Flexible & Durable Integration
    Operates in ambient temperatures from -25°C to 60°C and mounts in any orientation. The die-cast aluminum housing dissipates heat efficiently, and its 50,000-hour lifespan (L10 at 40°C) minimizes maintenance needs.


Applications

  • Industrial Equipment Cooling: Ventilation for control cabinets, CNC machines, and power converters.

  • HVAC Systems: Air movement in commercial ducting or exhaust units.

  • Energy/Telecom Infrastructure: Cooling for battery packs, UPS systems, and telecom shelters.

  • Heavy Machinery: Thermal management in motors, compressors, and hydraulic units.


FAQ

Q: Can this fan run continuously?
A: Yes, it’s rated for S1 continuous duty and handles 24/7 operation within its temperature limits.

Q: Is reverse wiring protected?
A: Yes, reverse-polarity protection prevents damage if power leads are accidentally swapped.

Q: How is speed controlled?
A: Use either 0–10VDC signals or PWM input via the yellow control wire (custom protocols available on request).

Q: What certifications apply?
A: Complies with CE, RoHS, ISO 9001, ErP 2015, and meets EN/IEC safety standards for industrial use.


DCW133-24PL-71

DW133-48PL-70

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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