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380V EC 355mm 1700W Large Air Volume Backward Centrifugal Bracket-Mounted Fan for Factory Waste Gas Treatment

1. 355mm
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:
  • FK3G355-4AAS-30

  • Fanova

Phase

~

3~

额定电压 Nominal Voltage

VAC

380

电压范围 Nominal voltage range

VAC

304V456V

频率 Frequency

Hz

50/60

电流消耗 Current draw

A

1.7±10%

转速 Speed(RPM)

min-1

2400±5%

功率消耗 Power consumption

W

990±10%

声压级 Sound Pressure Level

dB(A

88±5%

最大风量 Max. Air Flow

CFM / m3/H

3860.56/6560

最大静压 Max. Static Pressure

In.wg /Pa

4.32/1080

绝缘等级 Insulation class

~

Class F

防护等级 Degree of protection

~

IP54

控制方式 Control Input

~

0~10VDC / PWM

信号输出 Signal Output

~

FG (Tach output )

Product Overview

The FK3G355-4AAS-30 is a heavy-duty centrifugal fan engineered for industrial-scale ventilation and high-pressure airflow demands. Powered by a robust 380VAC three-phase EC motor (BLEC137), it delivers exceptional performance with 6,560 m³/h (3,861 CFM) airflow and 1,080 Pa (4.32 in.wg) static pressure. Designed for harsh environments, it integrates smart controls and industrial-grade protections for demanding applications like factory cooling or large-scale HVAC systems.


Core Characteristics

  1. Industrial-Grade Power & Efficiency
    Operates on 380VAC three-phase power (304–456V range) with 990W power consumption, optimized for high-torque industrial loads while reducing grid strain compared to single-phase alternatives.

  2. High-Pressure Airflow Performance
    Generates massive airflow (6,560 m³/h) against extreme resistance (1,080 Pa)—ideal for long duct runs, dense filters, or process ventilation in factories and foundries.

  3. Smart Industrial Connectivity
    Features RS485 (MODBUS) communication, tachometer output (FG), and alarm contacts for seamless integration with SCADA/BMS systems—enabling remote monitoring and control.

  4. Durability for Demanding Environments
    IP54-rated housing resists dust/water ingress, while Class F insulation ensures reliability in high-heat conditions (50,000-hour L10 lifespan at 40°C).


Applications

  • Industrial Ventilation: Large factories, warehouses, and foundries requiring massive air exchange.

  • Process Cooling: High-heat applications like kilns, ovens, or industrial dryers.

  • Data Centers: High-static-pressure cooling for server halls and backup power rooms.

  • Power Plants: Ventilation for turbine halls or substation cooling.


FAQ

Q: Can this fan replace traditional three-phase induction motors?
A: Yes—its EC motor offers 30–50% energy savings, variable speed control, and no mechanical wear parts.

Q: How does MODBUS integration work?
A: Use RSA/RSB pins to monitor RPM, power status, and faults (via NC/COM alarm contacts) in real-time via industrial control systems.

Q: Is it suitable for outdoor use?
A: Yes—IP54 rating protects against rain and dust; pair with weatherproof enclosures for electronics.

Q: Why is the noise level (88 dB) higher than smaller fans?
A: High airflow/pressure requires powerful motors—install in machinery rooms or use acoustic ducting for noise-sensitive areas.


ECW355-4AAS-30

EW355-4AAS-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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+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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