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380V EC 355mm 1140W High Pressure Large Volume Backward Centrifugal Bracket Fan for Pneumatic Conveying System

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:
  • FK3G355-4APK-30

  • Fanova

Phase

~

3~

额定电压 Nominal Voltage

VAC

380

电压范围 Nominal voltage range

VAC

304~456

频率 Frequency

Hz

50/60

电流消耗 Current draw

A

1.8±10%

转速 Speed(RPM)

min-1

2400±5%

功率消耗 Power consumption

W

1140±10%

声压级 Sound Pressure Level

dB(A

91±5%

最大风量 Max. Air Flow

CFM / m3/H

3295.6/5600

最大静压 Max. Static Pressure

In.wg /Pa

4.2/1050

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 FK3G355-4APK-30 is a high-power industrial centrifugal fan featuring an integrated support bracket and 380V 3-phase EC motor. Engineered for heavy-duty ventilation in demanding environments, it delivers massive airflow (5,600 m³/h) at ultra-high static pressure (1,050 Pa). With industrial-grade protections and smart controls, it meets CE, RoHS, ISO9001, and ErP 2015 standards.

Core Features

  1. Industrial 3-Phase Power
    Operates at 380VAC (304–456V range) for robust performance in commercial/industrial settings. Handles 1,140W power with Class F insulation for high-temperature resilience.

  2. Advanced Motor & Bracket Design
    Integrated support bracket simplifies installation. EC motor (BLEC137) enables PWM/0–10V speed control and RS485/MODBUS communication for automation integration.

  3. High-Resolution Monitoring
    Enhanced FG signal (5 pulses/revolution) provides precise RPM feedback. Includes alarm contacts (NC/COM) for system diagnostics and fault alerts.

Applications

  • Industrial Ventilation: Factory exhaust systems, fume extraction.

  • Large HVAC Systems: Commercial building air handlers, duct boosters.

  • Process Cooling: Heavy machinery, industrial ovens, drying systems.

FAQ

Q1: Is this fan suitable for outdoor installations?
A1: Yes. IP54 rating protects against dust and water jets from any direction.

Q2: Can RPM be monitored remotely?
A2: Yes. Use the FG signal (5 pulses/rev) or RS485/MODBUS interface for real-time RPM data and control.

Q3: What distinguishes the "bracket" design?
A3: Integrated steel bracket eliminates need for separate mounting hardware, reducing installation time by 30%+.

Q4: How does it handle power fluctuations?
A4: Wide voltage range (304–456VAC) with under/over-voltage protection ensures stable operation.


ECW355-4APK-30

EW355-4APK-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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