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380V EC 310mm 850W Excellent Ventilation Function Backward Centrifugal Industrial Fan

1. 310mm
2. IP54 protection level
3. Aluminum alloy motor with galvanized steel sheet impeller, fashion design.
4. Using Ball bearing, working life more than 50,000 hours
Availability:
Quantity:
  • FB3G310-4AAS-30

  • Fanova

Phase

~

3~

Nominal Voltage

VAC

380

Nominal voltage range

VAC

304~456

Frequency

Hz

50/60

Current draw

A

1.35±10%

Speed(RPM)

min-1

2660±5%

Power consumption

W

850±10%

Sound Pressure Level

dB(A)

84.6±5%

Max. Air Flow

CFM / m3/H

2656.49/4514

Max. Static Pressure

In.wg /Pa

3.83/958

Insulation class

~

Class F

Degree of protection

~

IP54

Control Input

~

0~10VDC / PWM

Signal Output

~

FG (Tach output )

Product Overview

The FB3G310-4AAS-30 is a high-efficiency backward centrifugal fan from Fanova (Suzhou) Motor Technology, designed for demanding industrial ventilation and HVAC applications. Built with a robust external-rotor EC motor (BLEC137), it combines energy efficiency with advanced control capabilities. The fan operates on 380VAC three-phase power and delivers powerful airflow up to 4,514 m³/h, making it ideal for systems requiring reliable, variable-speed air movement. Its compact yet durable construction ensures versatility across diverse installations.

Key Features

  1. Smart EC Motor Technology
    Features a brushless EC motor with wide voltage tolerance (304–456V AC) and ultra-low energy consumption (850W ±10%). Integrated soft-start protection and thermal safeguards extend operational life to 50,000 hours (L10) under harsh conditions.

  2. Industrial-Grade Resilience
    Sealed to IP54 standards for dust/water resistance and built with die-cast aluminum impellers + ball bearings. Supports any mounting orientation and operates flawlessly from -25°C to 60°C, ensuring reliability in extreme environments.

  3. Advanced Control Integration
    Offers multi-protocol flexibility: 0–10V DC, PWM, or RS485 (MODBUS) for seamless automation. Includes real-time tachometer feedback (FG signal) and +10V DC output for daisy-chaining controls without external power.

Applications

  • HVAC Systems: Energy-efficient air handling in commercial/industrial buildings.

  • Machinery Cooling: Thermal management for industrial equipment, CNC machines, or enclosures.

  • Air Purification: High-static-pressure support for filtration units and cleanrooms.

  • Process Ventilation: Exhaust or supply airflow in manufacturing, printing, or chemical facilities.


ECB310-4AAS-30

EB310-4AAS-30

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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Contact Us

+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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