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EC 230V 37W 133mm CE Certificated Centrifugal Backward Fan for Cooling Electric Vehicle Battery Packs

1. 133mm Diameter
2. IP55 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:
  • FB3G133-2APL-51

  • Fanova

Phase

~

1~

Nominal Voltage

VAC

230

Nominal voltage range

VAC

184~270

Frequency

Hz

50/60

Current draw

A

0.26±10%

Speed(RPM)

min-1

3900±5%

Power consumption

W

37±10%

Sound Pressure Level

dB(A)

62±5%

Max. Air Flow

CFM / m3/H

152.42/259

Max. Static Pressure

In.wg /Pa

1.73/433

Insulation class

~

Class B

Degree of protection

~

IP55

Control Input

~

0~10VDC / PWM

Signal Output

~

FG (Tach output )

Product Overview

The FB3G133-2APL-51 is a whisper-quiet, ultra-efficient EC centrifugal fan engineered for applications where space and noise are critical constraints. With a compact 133mm footprint and glass-reinforced plastic impeller, it delivers precise airflow (259 m³/h) while operating at just 62 dB(A) – quieter than a normal conversation. Ideal for medical devices, lab equipment, and smart home systems requiring silent cooling.


Core Features

  1. Silent High-Speed Operation
    Spins at 3900 RPM while maintaining 62 dB(A) noise levels – perfect for noise-sensitive environments like clinics, offices, or residential settings.

  2. Energy-Sipping Performance
    Consumes only 37W at 230VAC – comparable to a household bulb – with wide voltage tolerance (184–270VAC) for unstable grids.

  3. Plug-and-Play Intelligence
    Integrated +10VDC output powers external sensors, while PWM/0–10VDC control and tach signal (FG: 2 pulses/rev) enable real-time speed adjustments.

  4. Lightweight & Robust
    Glass-fiber reinforced plastic impeller reduces weight (650g total) without sacrificing durability in humid conditions (IP44 rated).


Applications

  • Medical Diagnostics: Cooling MRI consoles, blood analyzers, and imaging equipment.

  • Smart Home Devices: Ventilation for high-end audio systems, VR headsets, or projectors.

  • Lab Instruments: Fume extraction in microscopes and PCR machines.

  • Office Electronics: Silent cooling for conference room AV cabinets.


FAQ

Q1: How quiet is 62 dB(A) practically?
A: Similar to background office chatter – unobtrusive in quiet spaces.

Q2: Can it run on a UPS during power outages?
A: Yes. Wide voltage range (184–270VAC) ensures compatibility with most UPS systems.

Q3: Is the plastic impeller durable?
A: Glass-fiber reinforcement resists warping at high RPMs and humid conditions.

Q4: How to monitor fan health remotely?
A: Use the FG signal (white wire) for RPM tracking – triggers alerts if speed drops.


FB3G133-2APL-51-(53电机)--2D图纸-模型_00

FB3G133-2APL-51-PQ曲线+全-模型_00

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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+8617768077282
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