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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 ) |
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.
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.
Energy-Sipping Performance
Consumes only 37W at 230VAC – comparable to a household bulb – with wide voltage tolerance (184–270VAC) for unstable grids.
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.
Lightweight & Robust
Glass-fiber reinforced plastic impeller reduces weight (650g total) without sacrificing durability in humid conditions (IP44 rated).
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.
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.
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 ) |
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.
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.
Energy-Sipping Performance
Consumes only 37W at 230VAC – comparable to a household bulb – with wide voltage tolerance (184–270VAC) for unstable grids.
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.
Lightweight & Robust
Glass-fiber reinforced plastic impeller reduces weight (650g total) without sacrificing durability in humid conditions (IP44 rated).
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.
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.




| Voltage Output | Output +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 Resistance | 10mA maximum at 1800VAC 50Hz one second Between frame and (+) terminal | |
| Life Expectance | 50,000 Hours(L10) | |
| Leakage Current | ≤3.5mA (Max. ) | |
| Direction of Air Flow | Straight forward from air outlet | |
| Motor | External rotor EC motor | |
| 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 | -25ºC (Min. ) | 60ºC (Max. ) |
| Heat sink of IC | 115ºC (Max. ) | |
| Other electronic parts | 85ºC (Max. ) | |
| Ball bering | 80ºC (Max. ) | |
| Lead Wire | 120ºC (Max. ) | |
| Storage Temperature | -40ºC to 75ºC | |
| Operating Humidity | 5% to 90% RH | |
| Storage Humidity | 5% to 95% RH | |
| Electronics housing material | Die-cast aluminum | |
| Operation Mode | S1 | |
| Motor bearing | Ball bearing | |
| Valid For Approval/Standard | CE,RoHS,ErP2015 | |
| Voltage Output | Output +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 Resistance | 10mA maximum at 1800VAC 50Hz one second Between frame and (+) terminal | |
| Life Expectance | 50,000 Hours(L10) | |
| Leakage Current | ≤3.5mA (Max. ) | |
| Direction of Air Flow | Straight forward from air outlet | |
| Motor | External rotor EC motor | |
| 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 | -25ºC (Min. ) | 60ºC (Max. ) |
| Heat sink of IC | 115ºC (Max. ) | |
| Other electronic parts | 85ºC (Max. ) | |
| Ball bering | 80ºC (Max. ) | |
| Lead Wire | 120ºC (Max. ) | |
| Storage Temperature | -40ºC to 75ºC | |
| Operating Humidity | 5% to 90% RH | |
| Storage Humidity | 5% to 95% RH | |
| Electronics housing material | Die-cast aluminum | |
| Operation Mode | S1 | |
| Motor bearing | Ball bearing | |
| Valid For Approval/Standard | CE,RoHS,ErP2015 | |