EN
FB3G175-2ALH-70P
| Nominale spanning | VAC | 230 |
| Stroomverbruik | Een | 0.8 |
| Snelheid (rpm) | min. -1 | 4100 |
| Energieverbruik | W | 105 |
| Max. luchtvolume | CFM / m 3 /H | 471/800 |
| Max. Statische Druk | In.wg /Pa | 2.01/502 |
50 stuks
Built for demanding industrial airflow where lesser fans stall, the FB3G175-2ALH-70P delivers 800 m³/h (471 CFM) at 502 Pa from its 175mm backward curved impeller—powered by a robust 105W BLEC72 EC motor at 4100 RPM. This is the highest-output fan in the 175mm class, engineered for long duct runs, high-resistance filtration, multi-outlet ventilation systems, and industrial process cooling. Operating on standard 230VAC 50/60, it handles European and Asian grid conditions with a wide 184~270 VAC input tolerance. 0-10VDC/PWM speed control with FG tach (3 pulse/rev) enables precision regulation from gentle circulation to full-power extraction. CE, RoHS, ISO9001, ErP2026 certified with 50,000-hour L10 bearing life for continuous-duty industrial applications.
The FB3G175-2ALH-70P is the high-output member of the 175mm family. Its BLEC72 motor draws just 0.8A at 230VAC while producing 105W of shaft power—enough to drive 800 m³/h against 502 Pa of system resistance. This high static pressure capability makes it uniquely suited for applications where other EC fans in this size class would stall: long duct runs exceeding 20 meters, HEPA filter banks, multi-branch air distribution networks, and industrial extraction systems with high pressure drop. The 184~270 VAC input handles voltage dips common in industrial environments. 50/60 dual-frequency compatibility ensures consistent operation across 50Hz European and 60Hz Asian installations. The die-cast aluminum housing with IP44 rating protects against dust and water splashes. Full protection suite: soft-start, current limitation, under/over voltage, thermal overload, locked-rotor, reverse polarity. Ball bearings rated 50,000+ hours L10. CE, RoHS, ISO9001, ErP2026 and EN ISO 12100, EN 60204-1, EMC compliant.
| EC Backward Centrifugal Fan |  |
|
| Type | FB3G175-2ALH-70P | |
| Model | BLEC72 | |
| Phase | ~ | 1~ |
| Nominale spanning | VAC | 230 |
| Frequency | Hz | 50/60 |
| Voltage range | VAC | 184~270 |
| Stroomverbruik | Een | 0.8 |
| Snelheid (rpm) | min. -1 | 4100 |
| Energieverbruik | W | 105 |
| Sound Pressure Level | dB(A) | 79 |
| Max. luchtvolume | CFM / m 3 /H | 471/800 |
| Max. Statische Druk | In.wg /Pa | 2.01/502 |
| Insulation class | ~ | Klasse 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. 105W Industrial Power: The highest-output fan in the 175mm class. 800 m³/h at 502 Pa—enough static pressure for long duct runs, HEPA filter banks, multi-branch air distribution, and industrial extraction where standard EC fans stall. At just 0.8A from 230VAC, it delivers this performance on standard single-phase circuits.
2. 502 Pa Static Pressure: Unlike typical EC fans optimized for high-flow/low-pressure operation, the FB3G175-2ALH-70P maintains 800 m³/h airflow against 502 Pa of system resistance. This high-pressure capability eliminates the need for multiple fans in series for demanding ducted applications.
3. 230VAC European Standard: 50/60 dual-frequency, 184~270 VAC wide input tolerance. Direct drop-in for European and Asian industrial power grids. The 0.8A current draw leaves ample headroom on standard circuits despite the 105W output.
4. Comprehensive Protection: Soft-start, current limitation, under/over voltage, thermal overload for motor and electronics, locked-rotor, reverse polarity. FG tach (3 pulse/rev) for real-time RPM monitoring. Die-cast aluminum, IP44, ball bearings 50,000+ hr L10.
5. Certified & Flexible: CE, RoHS, ISO9001, ErP2026 with EN ISO 12100, EN 60204-1, EMC. OEM/ODM with custom voltage, connectors, cables. Modbus RTU RS485 optional. 7-day samples, 14-21 day production. EXW/FOB/CIF/DAP/DDP.
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.
