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48V DC 225mm 144W Backward Centrifugal Blower Fan for Laboratory Air Purification Equipment

1. 225mm
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:
  • FB3G225-48PY-90

  • Fanova

Nominal Voltage

VDC

48

Nominal voltage range

VDC

36~57

Current draw

A

3.0±10%

Speed(RPM)

min-1

2700±5%

Power consumption

W

144±10%

Sound Pressure Level

dB(A

68.3±5%

Max. Air Flow

CFM / m3/H

707.38/1202

Max. Static Pressure

In.wg /Pa

2.056/514

Insulation class

~

Class B

Degree of protection

~

IP44

Control Input

~

0~10VDC / PWM

Signal Output

~

FG (Tach output )

Product Overview

The FB3G225-48PY-90 is a compact yet efficient backward-curved centrifugal fan engineered for applications requiring balanced airflow and static pressure in space-constrained environments. Powered by a 48VDC brushless motor (Model BLDC92), it delivers reliable performance (1,202 m³/h airflow | 514 Pa static pressure) while prioritizing energy efficiency and low-noise operation. Ideal for commercial equipment, ventilation subsystems, and industrial devices demanding quiet, mid-range cooling power.


Key Features

  1. Optimized Airflow-to-Noise Ratio
    Generates substantial airflow (1,202 m³/h) at just 68.3 dB(A)—significantly quieter than comparable industrial fans—thanks to its aerodynamically refined 7-blade fiberglass impeller.

  2. Robust & Compact Build
    Features a corrosion-resistant fiberglass-reinforced impeller and IP44-rated housing, ensuring durability in dusty/humid conditions. Operates flawlessly across extreme temperatures (-25°C to 60°C).

  3. Smart Control & Monitoring
    Supports 0–10VDC/PWM speed modulation for dynamic airflow tuning. Integrated FG tachometer signal (4 pulses/revolution) enables real-time RPM tracking for predictive maintenance.


Applications

  • Commercial Refrigeration: Condenser cooling in supermarket display cases or walk-in coolers.

  • Lab Equipment Ventilation: Fume extraction in chemical hoods or analytical instruments.

  • Telecom Cabinets: Thermal management for 5G base stations or server enclosures.


FAQ

Q: Can it replace AC fans in existing systems?
A: Yes—48VDC operation reduces energy consumption by 25%+ vs. AC fans, with seamless PWM integration for retrofits.

Q: Is the fiberglass impeller safe for food/medical environments?
A: Absolutely—the inert, non-shedding material complies with RoHS standards and resists microbial growth.

Q: How does backward-curved design improve efficiency?
A: Blades minimize turbulence, reducing noise while maximizing pressure buildup—ideal for ducted systems.

Q: What if I need higher static pressure?
A: Consider the FK3G250-48PL-91 (885 Pa) for extreme resistance; this model prioritizes balanced flow-noise performance.


DC225-48PY-90

D225-48PY-90

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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