EN
FB3G133-24PL-72
| Nominal Voltage | VDC | 24 |
| Current draw | A | 1.2 |
| Speed(RPM) | min-1 | 3900 |
| Power consumption | W | 28 |
| Max. Air Flow | CFM / m3 /H | 268/455 |
| Max. Static Pressure | In.wg /Pa | 1.316/329 |
50pcs
The FB3G133-24PL-72 is a higher-speed 24VDC backward curved centrifugal fan delivering 455 m³/h (268 CFM) at 329 Pa—a 13% airflow increase over the standard 70 variant in the same compact 133mm form factor. Its BLDC72 brushless motor spins at 3900 RPM while consuming just 28W at 1.2A, achieving exceptional energy efficiency for battery-backed and solar-powered applications. At 63 dB(A), it operates quieter than normal conversation. The safe 24VDC low-voltage operation eliminates shock hazards and high-voltage permits. 0-10VDC/PWM speed control with FG tach (2 pulse/rev). CE, RoHS, ISO9001, ErP2026 certified with 50,000-hour L10 bearing life.
The FB3G133-24PL-72 shares the same mechanical platform as the 24PL-70 but with an optimized winding configuration in its BLDC72 motor that raises the nominal speed from 3800 to 3900 RPM. This 100 RPM increment delivers a meaningful 13% airflow gain—from 400 to 455 m³/h—while maintaining the same 28W power budget and 63 dB(A) noise level. Drawing 1.2A from a 24VDC supply with a 16~28 VDC input range, it accommodates lead-acid battery charge/discharge voltage swings. The 7-blade glass-fiber reinforced PP impeller, die-cast aluminum housing, IP44 protection, and ball bearings rated 50,000+ hours L10 provide durability. Protection suite: soft-start, current limitation, under/over voltage, thermal overload, locked-rotor, reverse polarity. CE, RoHS, ISO9001, ErP2026 and EN ISO 12100, EN 60204-1, EMC compliant.
| DC Backward Centrifugal Fan |  |
|
| Type | FB3G133-24PL-72 | |
| Model | BLDC72 | |
| Nominal Voltage | VDC | 24 |
| Voltage range | VDC | 16~28 |
| Current draw | A | 1.2 |
| Speed(RPM) | min-1 | 3900 |
| Power consumption | W | 28 |
| Sound Pressure Level | dB(A) | 63 |
| Max. Air Flow | CFM / m3 /H | 268/455 |
| Max. Static Pressure | In.wg /Pa | 1.316/329 |
| Insulation class | ~ | Class B |
| Degree of protection | ~ | IP44 |
| Control Input | ~ | 0~10VDC / PWM |
| Signal Output | ~ | FG (Tach output ) |
Remarks:
I. Standard cable length. Customizable.
II. 0-10V/PWM control. Modbus RTU RS485 optional.
Test condition:
I. Specified environment and installation mode.
II. Input Voltage---Operating voltage.
III. Temperature---Room 25°C.
IV. Humidity---65%RH.
I. When taking out the fan, do not directly lift the fan lead wire. If the lead wire is excessively stressed, the internal welding part may fall off
II. Do not plug or unplug the fan lead plug when the fan is running
III. If the fan does not work after starting, do not touch the impeller, rotor, or other parts, professional technical personnel are required to inspect the fan to prevent sudden start of the fan from causing hand or other personal injury
IV. Because of the soft start characteristics of the fan, to prevent personal injury, do not touch the impeller or other parts of the fan during powered on or running at low speeds
V. The fan needs to be operated and used under the guidance of professional personnel to prevent children from coming into touch this product
VI. If the power line is worn or damaged, it needs to be returned to the manufacturer for repair or be replaced under the guidance of the manufacturer
VII. As a part of the fan, it is not recommended to use the motor alone when there is no impeller or loading
1. Higher-Speed Performance: The FB3G133-24PL-72 spins at 3900 RPM delivering 455 m³/h—13% more airflow than the standard 3800 RPM variant in the same 133mm footprint. Perfect when your application needs that extra airflow margin without upsizing the fan form factor.
2. 24V Low-Voltage Safety: Safe 24VDC operation with 16~28 VDC input range. No shock hazard, no high-voltage permits. Ideal for medical equipment, mobile installations, marine DC systems, and solar-powered ventilation.
3. Ultra-Efficient 28W: Delivering 455 m³/h at just 28W and 1.2A, the FB3G133-24PL-72 maximizes runtime on battery and solar. Over 80% motor efficiency vs 40-60% for equivalent DC brushed or AC fans.
4. Comprehensive Protection: Soft-start, current limitation, under/over voltage, thermal overload, locked-rotor, reverse polarity. FG tach (2 pulse/rev) for real-time RPM monitoring.
5. Certified & Flexible: CE, RoHS, ISO9001, ErP2026 with EN ISO 12100, EN 60204-1, EMC. Die-cast aluminum, IP44, ball bearings 50,000+ hr L10. OEM/ODM. 7-day samples, 14-21 day production.
Q1:What kind of payments do you support?
A1: For sample order, 100% payment in advance; For batch order, 30% in advance and 70% will be paid before shipping
Q2:Will you provide samples?
A2: Sample is available and can be delivered within 7 days for standard models
Q3:How can I choose a more suitable model?
A3: We need the information like fan type, quantity, size, material, voltage, air flow and static pressure.
Q4:How can I place the order?
A4: Usually quote you within 24 hours after we get your inquiry. First sign the PI, pay deposit, then we will arrange the production. After finished production need you pay balance. Finally we will ship the Goods.
Q5:About transportation
A5: All available shipping ways could be applied, express shipping, air or sea. Appointed shipping company or our own forwarders all could be used in shipment. Full-way tracking the cargos for you before the goods arrive.
Q6:How long is the warranty period?
A6: We currently offer 3-year quality guarantee for our own products, and in response to current product problems, our company provides line support, and some customers have been able to improve their products.
