Home / Products / Centrifugal Fans / Backward Centrifugal Fan With Support Bracket / EC 175mm 230V 105W High Speed Energy-Efficient Ventilation Backward Centrifugal Fan with Bracket

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EC 175mm 230V 105W High Speed Energy-Efficient Ventilation Backward Centrifugal Fan with Bracket

1. 175mm Diameter
2. IP44 protection level
3. Aluminum alloy motor with Plastic with glass-fiber reinforced impeller, fashion design.
4. Using Ball bearing, working life more than 50,000 hours
Availability:
Quantity:
  • FK3G175-2APL-70

  • 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

0.8±10%

转速 Speed(RPM)

min-1

4450±5%

功率消耗 Power consumption

W

105±10%

声压级 Sound Pressure Level

dB(A

76.4±5%

最大风量 Max. Air Flow

CFM / m3/H

425.49/723

最大静压 Max. Static Pressure

In.wg /Pa

2.67/667

绝缘等级 Insulation class

~

Class B

防护等级 Degree of protection

~

IP44

控制方式 Control Input

~

0~10VDC / PWM

信号输出 Signal Output

~

FG (Tach output )

Product Overview

The FB3G250-48PL-90 is a 250mm 85W centrifugal blower fan designed for demanding airflow systems. Powered by 48V DC, it integrates an external-rotor motor and impeller into a single compact unit. This unified design reduces installation space by 40% versus traditional split systems, making it ideal for constrained environments. Engineered to deliver high static pressure, it efficiently overcomes resistance in complex ductwork or multi-layer filtration setups.


Features

  1. Space-Saving Integration

    • Motor stator is fixed within the housing while the rotor directly drives the impeller.

    • Eliminates belts/gears, cutting energy loss by 30% and reducing vibration transmission by 25%.

  2. High-Pressure Performance

    • HEPA filters (MERV 17)

    • 10m ducts with 90° bends

    • Generates up to 800 Pa static pressure—capable of pushing air through:

    • Radial blade angle maintains stable airflow (500–1,500 m³/h).

  3. Low-Noise Operation

    • Aerodynamically rounded blades reduce turbulence.

    • Encapsulated motor windings dampen electromagnetic noise.

    • Operates at 72 dB(A) (30% quieter than comparable blowers).


Applications

  • HVAC Systems:
    Optimized for variable air volume (VAV) units in commercial buildings, dynamically adjusting airflow to meet zone-specific demands.

  • Filtration Systems:
    Handles high-resistance environments like HEPA-filtered cleanrooms or industrial exhausts.

  • Mobile/Off-Grid Setups:
    Reliable performance in voltage-fluctuating environments (e.g., solar-powered installations or electric vehicles).


ECW133-2APL-70

EW133-2APL-70

Voltage OutputOutput +10VDC, max. 1.1 mA (Can be used as speed control input voltage or FG signal pull-up voltage,and need to be circumscribed in series with a pull -up resister, details as connection diagram.)
Dielectric Resistance10mA maximum at 1800VAC 50Hz one second Between frame and (+) terminal
Life Expectance50,000 Hours(L10)
Leakage Current≤3.5mA (Max. )
Direction of Air FlowStraight forward from air outlet
MotorExternal rotor EC motor
Technical featuresMotor 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-25ºC (Min. )60ºC (Max. )
Heat sink of IC115ºC (Max. )
Other electronic parts85ºC (Max. )
Ball bering80ºC (Max. )
Lead Wire120ºC (Max. )
Storage Temperature-40ºC to 75ºC
Operating Humidity5% to 90% RH
Storage Humidity5% to 95% RH
Electronics housing materialDie-cast aluminum
Operation ModeS1
Motor bearingBall bearing
Valid For Approval/StandardCE,RoHS,ErP2015



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 +86-18168737096
 +8617715518438
 +8617715518438
 No.739, Fuyuan Road, Xiangcheng District, Suzhou, Jiangsu, P.R. China 215133

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+86-17715518438
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+8617715518438
+8617715518438
No.739, Fuyuan Road, Xiangcheng District, Suzhou, Jiangsu, P.R. China 215133
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