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230V EC 355mm 405W Silent High Pressure Backward Centrifugal Fan for Rapid Environmental Regulation

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:
  • FB3G355-2AAL-20

  • Fanova

Phase

~

1~

额定电压 Nominal Voltage

VAC

230

电压范围 Nominal voltage range

VAC

184~270

频率 Frequency

Hz

50/60

电流消耗 Current draw

A

1.75±10%

转速 Speed(RPM)

min-1

2050±5%

功率消耗 Power consumption

W

405±10%

声压级 Sound Pressure Level

dB(A

76±5%

最大风量 Max. Air Flow

CFM / m3/H

 2126.25/3613

最大静压 Max. Static Pressure

In.wg /Pa

3.00/750

绝缘等级 Insulation class

~

 Class B

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 FB3G355-2AAL-20 is an industrial-grade 230V AC centrifugal blower engineered for extreme airflow demands. Featuring a 355mm aluminum impeller and robust EC motor, it delivers massive ventilation power for large-scale cooling, exhaust, and process applications where high static pressure and smart control are critical.


Core Features

  1. Industrial-Grade Airflow Force
    Moves 3,613 m³/h (2,126 CFM) with 750 Pa (3.0 In.wg) static pressure – conquers dense filters, long duct runs, or confined industrial spaces.

  2. Advanced Control Ecosystem
    Supports 0-10VDC/PWMRS485 (MODBUS), and provides +10VDC output (red wire) for daisy-chaining controls or powering sensors.

  3. High-Fidelity Monitoring
    5-pulse/rev FG signal (white wire) + alarm contacts (orange/gray) enable real-time RPM tracking and instant fault alerts.

  4. Heavy-Duty Resilience
    All-aluminum construction, IP54 protection (dust/water jets), and 50k-hour lifespan for harsh factories, plants, or outdoor enclosures.


Applications

  • Industrial Process Cooling: High-pressure exhaust for foundries, welding bays, chemical processing equipment.

  • Large HVAC Systems: Commercial air handlers, data center cooling units, warehouse ventilation stacks.

  • Energy Infrastructure: Wind turbine nacelle cooling, transformer thermal management, power plant cabinet ventilation.

  • Heavy Machinery: Forging press cooling, industrial dryer airflow, large 3D printer chamber circulation.

  • Municipal Systems: Tunnel ventilation, wastewater treatment plant exhaust, public infrastructure cooling.


FAQ

  1. Q: Can this fan integrate with building automation systems?
    A: Yes – use RS485 (green/purple wires) for MODBUS communication with PLCs or BMS controllers.

  2. Q: What’s the purpose of the +10VDC output?
    A: It powers external sensors (e.g., temp probes) or daisy-chains control signals to other fans (max. 1.1mA).

  3. Q: How do I receive failure alerts?
    A: Connect the alarm contacts (orange/gray wires) to monitoring systems – they trigger on faults like overheating or stall.


ECW355-2AAL-20

EW355-2AAL-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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