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.
- ImpellerØ155 mm
- Max airflow494 m³/h
- Max static pressure278 Pa
- Voltage230 V
- Speed3,000 rpm
- Input power38 W
- Noise64 dB(A)
LWBA2E155-092NS-02 AC Backward Curved Centrifugal Fan Ø155 mm
Ø155 mm | AC | Max airflow 494 m³/h | Max static pressure 278 Pa | 64 dB(A)
- Factory direct
- OEM / ODM
- Samples in 1–3 days
- Production 15–30 days
- 18-month warranty
- CE · ETL · RoHS

Downloads for LWBA2E155-092NS-02
PDFDatasheet · 1.8 MBNeed a non-standard size or another format? Ask an engineer or search the download center.
LWBA2E155-092NS-02 is a LONGWELL AC Backward Curved Centrifugal Fan from the Backward Curved Centrifugal Fans range, impeller Ø155 mm, rated 230 V AC, maximum airflow 494 m³/h, maximum static pressure 278 Pa, noise 64 dB(A), input power 38 W. The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.
Technical data
| Model | LWBA2E155-092NS-02 |
|---|---|
| Series | LWBA2E155 |
| Motor type | AC |
| Phase | 1-phase |
| Rated voltage | 230 V |
| Frequency | 60 Hz |
| Current | 0.32 A |
| Input power | 38 W |
| Speed | 3,000 rpm |
| Max. airflow | 494 m³/h |
| Max. static pressure | 278 Pa |
| Noise | 64 dB(A) |
| Ambient temperature | -40 ~ 65 °C |
| Impeller diameter | Ø155 mm |
| Rotor diameter | 92 |
| Impeller material | Plastic PA66 |
| Protection class | IP44 |
| Insulation class | F |
| Bearing | Maintenance-free ball bearings |
| Duty | S1 |
| 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 LWBA2E155: 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 (Ø155 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 | |
|---|---|---|---|---|---|---|---|
| LWBA2E155-092NS-02 this model | 494 m³/h | 278 Pa | 3,000 rpm | 38 W | 64 dB(A) | 230 V | |
| LWBA2E155-092NS-01 | 464 m³/h | 216 Pa | 2,650 rpm | 32 W | 61 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 LWBA2E155 seriesSame impeller, different speed grade or wiring
Adjacent sizesOne size up when airflow is short, one size down when it is too much
LWFA8E153-072SS-01Ø153 mm · 165 m³/h · 100 Pa · ACadjacent size
LWFD3G160-092SH-02Ø160 mm · 556 m³/h · 649 Pa · DCadjacent size
LWFA2E160-092SS-04Ø160 mm · 525 m³/h · 618 Pa · ACadjacent size
LWFD3G160-092SH-03Ø160 mm · 556 m³/h · 649 Pa · DCadjacent size
LWFD3G160-092SM-02Ø160 mm · 556 m³/h · 649 Pa · DCadjacent size
LWFA4E160-092NS-02Ø160 mm · 412 m³/h · 154.5 Pa · ACadjacent sizeAlternatives at a similar dutySimilar airflow, different construction or motor platform
LWFA2E150-092SS-02Ø150 mm · 494 m³/h · 639 Pa · ACsimilar duty
LWFD3G160-072SZ-01Ø160 mm · 494 m³/h · 649 Pa · DCsimilar duty
LWBA2E180-092NS-02Ø180 mm · 494 m³/h · 371 Pa · ACsimilar duty
LWBA4E190-092NS-07Ø190 mm · 494 m³/h · 350 Pa · ACsimilar duty
LWFE3G140-072NS-02Ø140 mm · 494 m³/h · 845 Pa · ECsimilar duty
LWDA-160S-MBN-04Ø160 mm · 494 m³/h · 336 Pa · ACsimilar dutySee all Backward Curved Centrifugal Fans · select by duty point





