Digitised from the catalogue curve at standard air (20 °C, 101.3 kPa, 1.2 kg/m³); one curve per voltage / speed grade (1 here, rated 115 V). Data version: catalogue 2026-08. 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.
Representative image of the series — dimensions and configuration of this model are given in the drawing and data table below.
- ImpellerØ225 mm8.9 in
- Max airflow1,276 m³/h751 CFM
- Max static pressure756 Pa3.04 in. wg
- Voltage115 V
- Speed2,905 rpm
- Input power178 W
- Noise71.3 dB(A)
LWBA2E225-092NU-05 AC Backward Curved Centrifugal Fan Ø225 mm
Ø225 mm | AC | Max airflow 1,276 m³/h | Max static pressure 756 Pa | 71.3 dB(A)
- Factory direct
- OEM / ODM
- Samples in 1–3 days
- Production 15–30 days
- 12-month warranty
- CE · RoHS · ETL on request
PDFDatasheet (PDF)electrical & performance dataPDFFull product catalogueAC AC Backward centrifugal fans · SKU on PDF p. 15
All files for LWBA2E225-092NU-055 files · direct download
PDFFull product catalogue · model on PDF p. 15WEBPDimensional drawingWEBPPerformance curveWEBPWiring diagram
CAD models (STEP / DWG) are released on request — see “Engineering files” below. Another format or a non-standard variant? Ask an engineer · download center
Proven in: AHU & ventilation unit fans · CRAH FanGrid retrofit · Heat pump fan programme — all case studies on longwellfans.com
Typical applications: Air conditioning · Air handling units · FanGrid arrays · FFU / EFU — all industries
Engineering files (on request)
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 LWBA2E225-092NU-05
PDFDatasheetPDFFull product catalogue · AC AC Backward centrifugal fans · model on PDF p. 15 · 29.3 MBNeed a non-standard size or another format? Ask an engineer or search the download center.
LWBA2E225-092NU-05 is a LONGWELL AC Backward Curved Centrifugal Fan from the Backward Curved Centrifugal Fans range, impeller Ø225 mm, rated 115 V AC, maximum airflow 1,276 m³/h, maximum static pressure 756 Pa, noise 71.3 dB(A), input power 178 W. The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.
Technical data
| Model | LWBA2E225-092NU-05 |
|---|---|
| Series | LWBA2E225 |
| Motor type | AC |
| Phase | 1-phase |
| Rated voltage | 115 V |
| Frequency | 60 Hz |
| Current | 0.77 A |
| Input power | 178 W |
| Speed | 2,905 rpm |
| Max. airflow | 1,276 m³/h |
| Max. static pressure | 756 Pa |
| Noise | 71.3 dB(A) |
| Ambient temperature | -40 ~ 65 °C |
| Storage temperature | -40 ~ 80℃ |
| Humidity | 0 ~ 85 % RH |
| Altitude | < 1000m |
| Impeller diameter | Ø225 mm |
| Rotor diameter | 92 mm |
| Impeller material | PA6+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 | |
|---|---|---|---|---|---|---|---|
| LWBA2E225-092NU-05 this model | 1,276 m³/h | 756 Pa | 2,905 rpm | 178 W | 71.3 dB(A) | 115 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 |
| LWBA4E225-092NS-02 | 690 m³/h | 216 Pa | 1,650 rpm | 47 W | 60 dB(A) | 230 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 |
| LWBA2E225-092NS-09 | 1,133 m³/h | 546 Pa | 2,600 rpm | 135 W | 74 dB(A) | 230 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 |
| 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 |
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
LWBA2E225-092NS-06Ø225 mm · 1,166 m³/h · 578 Pa · ACsame series
LWBA2E225-092NS-09Ø225 mm · 1,133 m³/h · 546 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-01Ø220 mm · 1,029 m³/h · 662 Pa · ACadjacent size
LWBE3G220-072NS-09Ø220 mm · 1,019.7 m³/h · 597.4 Pa · ECadjacent size
LWBE3G220-072NS-07Ø220 mm · 937.3 m³/h · 721 Pa · ECadjacent size
LWBE3G220-072NS-08Ø220 mm · 1,184.5 m³/h · 978.5 Pa · ECadjacent size
LWBA2E220-092NS-02Ø220 mm · 945 m³/h · 515 Pa · ACadjacent size
LWBA4E220-092NS-03Ø220 mm · 767 m³/h · 399 Pa · ACadjacent sizeAlternatives at a similar dutySimilar airflow, different construction or motor platform
LWBA4E280-092NS-03Ø280 mm · 1,267 m³/h · 216 Pa · ACsimilar duty
LWAA2D230S-5MNW-01Ø230 mm · 1,288 m³/h · ACsimilar duty
LWBA2E250-092NS-08Ø250 mm · 1,288 m³/h · 597 Pa · ACsimilar duty
LWBA2D250-092NT-10Ø250 mm · 1,288 m³/h · 597 Pa · ACsimilar duty
LWBA2D225-092NT-12Ø225 mm · 1,257 m³/h · 695 Pa · ACsimilar dutySee all Backward Curved Centrifugal Fans · select by duty point