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.
- ImpellerØ220 mm8.7 in
- Max airflow937 m³/h552 CFM
- Max static pressure484 Pa1.94 in. wg
- Voltage380 V
- Speed2,500 rpm
- Input power85 W
- Noise70 dB(A)
LWBA2D220-092NT-06 AC Backward Curved Centrifugal Fan Ø220 mm
Ø220 mm | AC | Max airflow 937 m³/h | Max static pressure 484 Pa | 70 dB(A)
- Factory direct
- OEM / ODM
- Samples in 1–3 days
- Production 15–30 days
- 18-month warranty
- CE · ETL · RoHS



Need a non-standard size or another format? Ask an engineer or search the download center.
LWBA2D220-092NT-06 is a LONGWELL AC Backward Curved Centrifugal Fan from the Backward Curved Centrifugal Fans range, impeller Ø220 mm, rated 380 V AC, maximum airflow 937 m³/h, maximum static pressure 484 Pa, noise 70 dB(A), input power 85 W. The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.
Technical data
| Model | LWBA2D220-092NT-06 |
|---|---|
| Series | LWBA2D220 |
| Motor type | AC |
| Phase | 3-phase |
| Rated voltage | 380 V |
| Frequency | 50 Hz |
| Current | 0.17 A |
| Input power | 85 W |
| Speed | 2,500 rpm |
| Max. airflow | 937 m³/h |
| Max. airflow (CFM) | 551/588 CFM |
| Max. static pressure | 484 Pa |
| Noise | 70 dB(A) |
| Ambient temperature | -30 ~ 60 °C |
| Storage temperature | -40 ~ 80℃ |
| Humidity | 0 ~ 85 % RH |
| Altitude | < 1000m |
| Impeller diameter | Ø220 mm |
| Rotor diameter | 92 |
| 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 LWBA2D220: 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 (Ø220 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 | |
|---|---|---|---|---|---|---|---|
| LWBA2D220-092NT-06 this model | 937 m³/h | 484 Pa | 2,500 rpm | 85 W | 70 dB(A) | 380 V | |
| LWBA4D220-092NT-11 | 567 m³/h | 155 Pa | 1,400 rpm | 38 W | 52 dB(A) | 380 V | View |
| LWBA4E220-092NS-09 | 567 m³/h | 155 Pa | 1,420 rpm | 40 W | 52 dB(A) | 230 V | View |
| LWBA4D220-092NT-12 | 628 m³/h | 206 Pa | 1,650 rpm | 41 W | 52 dB(A) | 380 V | View |
| LWBA4E220-092NS-10 | 628 m³/h | 206 Pa | 1,650 rpm | 41 W | 58 dB(A) | 230 V | View |
| LWBA4E220-092NS-03 | 767 m³/h | 399 Pa | 2,180 rpm | 64 W | 62.2 dB(A) | 230 V | View |
| LWBA2E220-092NS-08 | 824 m³/h | 474 Pa | 2,500 rpm | 95 W | 70 dB(A) | 230 V | View |
| LWBA2E220-092NS-04 | 937 m³/h | 484 Pa | 2,500 rpm | 90 W | 70 dB(A) | 230 V | View |
| LWBA2E220-092NS-02 | 945 m³/h | 515 Pa | 2,530 rpm | 101 W | 66.6 dB(A) | 230 V | View |
| LWBA2D220-092NT-07 | 999 m³/h | 515 Pa | 2,700 rpm | 100 W | 73 dB(A) | 380 V | View |
| LWBA2E220-092NS-05 | 999 m³/h | 515 Pa | 2,700 rpm | 100 W | 73 dB(A) | 230 V | View |
| LWBA2E220-092NS-01 | 1,029 m³/h | 662 Pa | 2,780 rpm | 129 W | 67.1 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 LWBA2D220 seriesSame impeller, different speed grade or wiring
Adjacent sizesOne size up when airflow is short, one size down when it is too much
LWFA6D225-138NT-03Ø225 mm · 1,339 m³/h · 236.9 Pa · ACadjacent size
LWBA2E225-092NS-10Ø225 mm · 1,257 m³/h · 695 Pa · ACadjacent size
LWBA2D225-092NT-11Ø225 mm · 1,133 m³/h · 546 Pa · ACadjacent size
LWBA2D225-092NT-12Ø225 mm · 1,257 m³/h · 695 Pa · ACadjacent size
LWBA2E225-092NS-09Ø225 mm · 1,133 m³/h · 546 Pa · ACadjacent size
LWFA4E225-138NS-02Ø225 mm · 1,761 m³/h · 288.4 Pa · ACadjacent sizeAlternatives at a similar dutySimilar airflow, different construction or motor platform
LWBA2E220-092NS-04Ø220 mm · 937 m³/h · 484 Pa · ACsimilar duty
LWBE3G220-072NS-07Ø220 mm · 937.3 m³/h · 721 Pa · ECsimilar duty
LWBE3G220-072NU-13Ø220 mm · 937.3 m³/h · 721 Pa · ECsimilar duty
LWFE3G220-072PS-01Ø220 mm · 937.3 m³/h · 721 Pa · ECsimilar duty
LWCD-65820MN-07Ø65 mm · 933 m³/h · 56 Pa · DCsimilar duty
LWCD-65820LN-06Ø65 mm · 933 m³/h · 56 Pa · DCsimilar dutySee all Backward Curved Centrifugal Fans · select by duty point










