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 airflow690 m³/h406 CFM
- Max static pressure216 Pa0.87 in. wg
- Voltage380 V
- Speed1,650 rpm
- Input power47 W
- Noise60 dB(A)
LWBA4D225-092NT-04 AC Backward Curved Centrifugal Fan Ø225 mm
Ø225 mm | AC | Max airflow 690 m³/h | Max static pressure 216 Pa | 60 dB(A)
- Factory direct
- OEM / ODM
- Samples in 1–3 days
- Production 15–30 days
- 18-month warranty
- CE · RoHS · ETL on request
Downloads for LWBA4D225-092NT-04
PDFDatasheet · 1.7 MBNeed a non-standard size or another format? Ask an engineer or search the download center.
LWBA4D225-092NT-04 is a LONGWELL AC Backward Curved Centrifugal Fan from the Backward Curved Centrifugal Fans range, impeller Ø225 mm, rated 380 V AC, maximum airflow 690 m³/h, maximum static pressure 216 Pa, noise 60 dB(A), input power 47 W. The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.
Technical data
| Model | LWBA4D225-092NT-04 |
|---|---|
| Series | LWBA4D225 |
| Motor type | AC |
| Phase | 3-phase |
| Rated voltage | 380 V |
| Frequency | 60 Hz |
| Current | 0.13 A |
| Input power | 47 W |
| Speed | 1,650 rpm |
| Max. airflow | 690 m³/h |
| Max. static pressure | 216 Pa |
| Noise | 60 dB(A) |
| Ambient temperature | -40 ~ 65 °C |
| Impeller diameter | Ø225 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 LWBA4D225: 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 | |
|---|---|---|---|---|---|---|---|
| LWBA4D225-092NT-04 this model | 690 m³/h | 216 Pa | 1,650 rpm | 47 W | 60 dB(A) | 380 V | |
| LWBA2D225-092NT-03 | 618 m³/h | 165 Pa | 1,420 rpm | 45 W | 54 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 |
| 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 |
Not sure which one? Send us the duty point (airflow / static pressure / noise limit) — use the selector or ask an engineer.
Related products
Adjacent sizesOne size up when airflow is short, one size down when it is too much
LWBA4E220-092NS-03Ø220 mm · 767 m³/h · 399 Pa · ACadjacent size
LWFE3G220-072PS-01Ø220 mm · 937.3 m³/h · 721 Pa · ECadjacent size
LWBA2E220-092NS-05Ø220 mm · 999 m³/h · 515 Pa · ACadjacent size
LWBA2E220-092NS-04Ø220 mm · 937 m³/h · 484 Pa · ACadjacent size
LWBA2E220-092NS-01Ø220 mm · 1,029 m³/h · 662 Pa · ACadjacent 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
LWFE3G133-092DS-03Ø133 mm · 690 m³/h · 330 Pa · ECsimilar duty
LWBA4E225-092NS-02Ø225 mm · 690 m³/h · 216 Pa · ACsimilar duty
LWDE-160S-MBN-01Ø160 mm · 690 m³/h · 520 Pa · ECsimilar duty
LWCD-60870MN-06Ø60 mm · 693 m³/h · 32 Pa · DCsimilar duty
LWDE-100 (4")S-MWN-04Ø100 mm · 697 m³/h · ECsimilar dutyLWDE-125 (5")S-MWN-04Ø125 mm · 697 m³/h · ECsimilar dutySee all Backward Curved Centrifugal Fans · select by duty point