Digitised from the catalogue curve at standard air (20 °C, 101.3 kPa, 1.2 kg/m³); one curve per voltage / speed grade. The system resistance curve depends on the actual ductwork — confirm the operating point on site. Need an engineer to verify the duty point? Contact us or add the model to your RFQ and note the duty point.
- ImpellerØ225 mm8.9 in
- Max airflow1,133 m³/h667 CFM
- Max static pressure546 Pa2.19 in. wg
- Voltage230 V
- Speed2,600 rpm
- Input power135 W
- Noise74 dB(A)
LWBA2E225-092NS-09 AC Backward Curved Centrifugal Fan Ø225 mm
Ø225 mm | AC | Max airflow 1,133 m³/h | Max static pressure 546 Pa | 74 dB(A)
- Factory direct
- OEM / ODM
- Samples in 1–3 days
- Production 15–30 days
- 18-month warranty
- CE · ETL · RoHS
CAD files exist for this model and can be released for assembly checks in SolidWorks / CATIA / Creo / Inventor.
CAD models contain the blade geometry and are not downloadable. Tell us the project; an engineer sends the file after a short check, normally within 1 business day.



Downloads for LWBA2E225-092NS-09
PDFDatasheetNeed a non-standard size or another format? Ask an engineer or search the download center.
LWBA2E225-092NS-09 is a LONGWELL AC Backward Curved Centrifugal Fan from the Backward Curved Centrifugal Fans range, impeller Ø225 mm, rated 230 V AC, maximum airflow 1,133 m³/h, maximum static pressure 546 Pa, noise 74 dB(A), input power 135 W. The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.
Technical data
| Model | LWBA2E225-092NS-09 |
|---|---|
| Series | LWBA2E225 |
| Motor type | AC |
| Phase | 1-phase |
| Rated voltage | 230 V |
| Frequency | 50 Hz |
| Current | 0.6 A |
| Input power | 135 W |
| Speed | 2,600 rpm |
| Max. airflow | 1,133 m³/h |
| Max. static pressure | 546 Pa |
| Noise | 74 dB(A) |
| Ambient temperature | -40 ~ 60 °C |
| Storage temperature | -40 ~ 80℃ |
| Humidity | 0 ~ 85 % RH |
| Altitude | < 1000m |
| Impeller diameter | Ø225 mm |
| Rotor diameter | 92 |
| Impeller material | PA66+GF ( Impeller ) |
| Protection class | IP44 |
| Insulation class | F |
| Bearing | Maintenance-free ball bearings |
| Duty | S1 |
| Balance grade | G6.3 |
| Vibration standard | JB/T 8689 |
| Service life | 30,000Hours(L10), At 40 °Croom, humidity 15%~65%RH |
| Rotation | Clockwise,seen on rotor |
Typical applications
- Air handling units (AHU) and rooftop units (RTU)
- Data-center CRAH / CRAC units and fan walls
- Dust extraction and process ventilation
- Fan filter units and air purifiers
Series LWBA2E225: models in the same series share the impeller and motor platform and differ in speed grade, voltage or lead-out / terminal-box configuration — compare them in the table below or ask for the best fit at your duty point.
Nameplate values: maximum airflow is measured at zero static pressure and maximum static pressure at zero airflow; the two never occur together. Confirm the operating point on the performance curve. Final selection is subject to the duty point (airflow / static pressure / voltage / control mode) and project verification.
Alternatives with the same impeller (Ø225 mm · AC)
Same impeller, different speed grade, power or wiring. Step up for more airflow, step down for lower noise.
| Model | Max airflow | Max static pressure | Speed | Power | Noise | Voltage | |
|---|---|---|---|---|---|---|---|
| LWBA2E225-092NS-09 this model | 1,133 m³/h | 546 Pa | 2,600 rpm | 135 W | 74 dB(A) | 230 V | |
| LWBA2D225-092NT-03 | 618 m³/h | 165 Pa | 1,420 rpm | 45 W | 54 dB(A) | 380 V | View |
| LWBA4D225-092NT-04 | 690 m³/h | 216 Pa | 1,650 rpm | 47 W | 60 dB(A) | 380 V | View |
| LWBA2E225-092NS-13 | 1,133 m³/h | 546 Pa | 2,630 rpm | 125 W | 74 dB(A) | 230 V | View |
| LWBA2D225-092NT-11 | 1,133 m³/h | 546 Pa | 2,600 rpm | 135 W | 74 dB(A) | 380 V | View |
| LWBA2D225-092NT-08 | 1,139 m³/h | 588 Pa | 2,645 rpm | 119 W | 68.6 dB(A) | 380 V | View |
| LWBA2E225-092NS-06 | 1,166 m³/h | 578 Pa | 2,655 rpm | 129 W | 68.6 dB(A) | 230 V | View |
| LWBA2D225-092NT-12 | 1,257 m³/h | 695 Pa | 2,900 rpm | 180 W | 76 dB(A) | 380 V | View |
| LWBA2E225-092NS-10 | 1,257 m³/h | 695 Pa | 2,900 rpm | 180 W | 76 dB(A) | 230 V | View |
| LWBA2E225-092NU-05 | 1,276 m³/h | 756 Pa | 2,905 rpm | 178 W | 71.3 dB(A) | 115 V | View |
| LWBA2D225-092NT-07 | 1,318 m³/h | 788 Pa | 3,095 rpm | 190 W | 71.8 dB(A) | 380 V | View |
| LWFA6D225-138NT-03 | 1,339 m³/h | 236.9 Pa | 930 rpm | 300 W | 59 dB(A) | 380 V | View |
| LWFA4D225-138NT-01 | 1,648 m³/h | 288.4 Pa | 1,300 rpm | 490 W | 65 dB(A) | 380 V | View |
| LWFA4E225-138NS-02 | 1,761 m³/h | 288.4 Pa | 1,320 rpm | 510 W | 65 dB(A) | 230 V | View |
| LWFA-E-225-01 | 2,300 m³/h | 325 Pa | — | — | 65 dB(A) | 220 V | View |
Not sure which one? Send us the duty point (airflow / static pressure / noise limit) — use the selector or ask an engineer.
Other models in the LWBA2E225 seriesSame impeller, different speed grade or wiring
LWBA2E225-092NS-01Ø225 mm · 618 m³/h · 165 Pa · ACsame series
LWBA2E225-092NU-05Ø225 mm · 1,276 m³/h · 756 Pa · ACsame series
LWBA2E225-092NS-06Ø225 mm · 1,166 m³/h · 578 Pa · ACsame series
LWBA2E225-092NS-10Ø225 mm · 1,257 m³/h · 695 Pa · ACsame series
LWBA2E225-092NS-13Ø225 mm · 1,133 m³/h · 546 Pa · ACsame seriesAdjacent sizesOne size up when airflow is short, one size down when it is too much
LWBA2E220-092NS-02Ø220 mm · 945 m³/h · 515 Pa · ACadjacent size
LWBA2E220-092NS-05Ø220 mm · 999 m³/h · 515 Pa · ACadjacent size
LWBA2E220-092NS-04Ø220 mm · 937 m³/h · 484 Pa · ACadjacent size
LWBA4E220-092NS-03Ø220 mm · 767 m³/h · 399 Pa · ACadjacent size
LWFE3G220-072PS-01Ø220 mm · 937.3 m³/h · 721 Pa · ECadjacent size
LWFE3G220-072PS-02Ø220 mm · 1,019.7 m³/h · 597.4 Pa · ECadjacent sizeAlternatives at a similar dutySimilar airflow, different construction or motor platform
LWAA4D250S-7MEB-08Ø250 mm · 1,133 m³/h · ACsimilar duty
LWAA4E250S-7MEB-06Ø250 mm · 1,133 m³/h · ACsimilar duty
LWAA4E250S-7MKW-14Ø250 mm · 1,133 m³/h · ACsimilar duty
LWAA4E250B-7MKB-19Ø250 mm · 1,133 m³/h · ACsimilar duty
LWFD3G146-092DZ-01Ø146 mm · 1,133 m³/h · 545.9 Pa · DCsimilar duty
LWFD3G146-092DZ-02Ø146 mm · 1,133 m³/h · 520.15 Pa · DCsimilar dutySee all Backward Curved Centrifugal Fans · select by duty point










