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DC 48V 250mm 192W High-temperature Resistant High Pressure Backward Centrifugal Fan

1. 250mm
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:
  • FB3G250-48PL-91

  • Fanova

Nominal Voltage

VDC

48

Nominal voltage range

VDC

36~57

Current draw

A

4.0±10%

Speed(RPM)

min-1

2950±5%

Power consumption

W

192±10%

Sound Pressure Level

dB(A

71±5%

Max. Air Flow

CFM / m3/H

  868.04/1475

Max. Static Pressure

In.wg /Pa

  3.54/885

Insulation class

~

  Class B

Degree of protection

~

IP44

Control Input

~

0~10VDC / PWM

Signal Output

~

FG (Tach output )

Product Overview

The FB3G250-48PL-91 is a high-pressure industrial centrifugal fan engineered for demanding ventilation systems requiring extreme static pressure performance. Powered by a robust 48V DC brushless motor (BLDC92), it operates within a wide voltage range (36–57V DC) and delivers unmatched pressure capabilities. Featuring a corrosion-resistant glass-fiber-reinforced plastic impeller and IP44-rated die-cast aluminum housing, it meets CE, RoHS, ISO9001, and ErP 2015 standards for harsh environments.


Key Features

  1. Industry-Leading Static Pressure:
    Generates 885 Pa max static pressure—engineered to overcome extreme resistance in heavy filtration, long duct runs, or dense industrial equipment.

  2. Energy-Optimized Design:
    Achieves high-pressure performance at 192W power consumption (4.0A), balancing output with operational efficiency.

  3. Chemical & Abrasion Resistance:
    Fiberglass-reinforced plastic impeller withstands corrosive fumes, humidity, and airborne particulates in industrial settings.

  4. Precision Speed Management:
    FG tachometer (4 pulses/revolution) enables real-time RPM monitoring for system diagnostics and maintenance planning.


Applications

  • Industrial Filtration: Pushing air through HEPA/ULPA filters in cleanrooms, labs, or medical facilities.

  • Process Ventilation: High-resistance exhaust for chemical processing, welding fumes, or powder handling.

  • Ducted HVAC Systems: Long-distance air transport in commercial buildings or manufacturing plants.

  • Energy Infrastructure: Cooling high-density power cabinets or battery storage systems.


FAQ

Q: Can this fan handle explosive or flammable environments?
A: No—it lacks ATEX certification. Use only in standard industrial settings.

Q: Is the impeller replaceable?
A: Yes—contact support for replacement parts to extend the unit’s lifespan.

Q: What’s the advantage of 4-pulse FG output?
A: Higher resolution (vs. 2-pulse models) allows finer speed control and early fault detection.

Q: Does it support variable airflow settings?
A: Yes—via 0–10V DC or PWM input for dynamic thermal management.


DC250-48PL-91

D250-48PL-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

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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