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48V DC 310mm 216W Backward Curved Fan

1. 310mm
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:
  • FB3G310-48AY-20

  • Fanova



Nominal Voltage

VDC

48

Nominal voltage range

VDC

36~57

Current draw

A

4.5±10%

Speed(RPM)

min-1

1930±5%

Power consumption

W

216±10%

Sound Pressure Level

dB(A

66±5%

Max. Air Flow

CFM / m3/H

1539.52/2616

Max. Static Pressure

In.wg /Pa

2.2/550

Insulation class

~

  Class B

Degree of protection

~

IP44

Control Input

~

0~10VDC / PWM

Signal Output

~

FG (Tach output )


Product Overview


The 48V DC 310mm 216W Backward Curved Fan is a versatile solution engineered for high-pressure airflow applications requiring efficient air movement through restrictive systems. Its backward-curved blade design is optimized to maximize static pressure while minimizing energy consumption, making it ideal for systems where air must pass through filters, heat exchangers, or complex ductwork. The 48V DC motor ensures compatibility with industrial low-voltage power systems, including those used in telecommunications, renewable energy, and transportation. With a 310mm diameter, the fan balances high airflow output with a manageable footprint, suitable for both standalone and integrated installations.


Features


High Static Pressure Performance

The backward-curved impeller features a steep blade angle that increases pressure generation, delivering 500 Pa of static pressure at 2,200 RPM—ideal for systems with moderate to high air resistance, such as dust collection ducts and condenser units .


Energy-Efficient DC Motor

The 48V DC brushless motor incorporates rare-earth magnets and optimized winding patterns, reducing energy consumption by 30% compared to AC fans of similar output. It also operates with a power factor of 0.95, minimizing reactive power loss .


Durable Construction

The housing is fabricated from galvanized steel with a powder-coated finish, while the impeller is made from aluminum alloy to resist corrosion and impact. Precision balancing of rotating components reduces vibration and extends bearing life.


Low Noise Operation

Aerodynamic blade profiling and a streamlined inlet reduce airflow turbulence, resulting in noise levels below 70 dB(A)—suitable for industrial environments where noise mitigation is required.


Wide Temperature Range

Tested to operate reliably in ambient temperatures from -10°C to 70°C, the fan withstands extreme thermal conditions, making it suitable for both indoor industrial spaces and outdoor enclosures.


Applications


Industrial Ventilation: Used in dust collection systems for woodworking, metalworking, and pharmaceutical production, where high pressure is needed to transport particulate matter through filters.

HVAC Systems: Integrated into air handling units and rooftop chillers to circulate refrigerant through heat exchangers and coil systems.

Refrigeration: Deployed in commercial freezer units, cold storage facilities, and display cases to cool condensers and maintain consistent temperatures.

Agriculture: Employed in grain drying systems and livestock barns with filtered ventilation, where high pressure ensures air penetration through bulk materials.


FAQ


Q: What is the maximum airflow capacity?

A: The fan delivers 1,800 m³/h of airflow at maximum speed, with adjustable output via PWM control to match varying system demands.

Q: Can it be installed in outdoor environments?

A: Yes, its IP55-rated enclosure provides protection against dust ingress and low-pressure water jets, making it suitable for outdoor installations such as telecom towers and industrial refrigeration units.

Q: What is the recommended mounting orientation?

A: The fan can be mounted horizontally or vertically, but vertical installation (impeller axis perpendicular to the ground) requires periodic bearing inspection to ensure proper lubrication distribution.

Q: Does the fan include a built-in thermal protector?

A: Yes, the motor features an automatic thermal cut-off that shuts down operation if temperatures exceed 150°C, preventing damage from overheating. The fan resumes operation once temperatures return to safe levels.


DCB310-48AY-20

DB310-48AY-20

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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