Representative image of the series — dimensions and configuration of this model are given in the drawing and data table below.
- ImpellerØ280 mm11.0 in
- Max airflow2,163 m³/h1,273 CFM
- Max static pressure773 Pa3.10 in. wg
- Voltage380 V
- Speed2,700 rpm
- Input power330 W
- Noise80 dB(A)
LWBA2D280-102NT-08 AC Backward Curved Centrifugal Fan Ø280 mm
Ø280 mm | AC | Max airflow 2,163 m³/h | Max static pressure 773 Pa | 80 dB(A)
- Direct from LONGWELL
- OEM / ODM
- Samples in 1–3 days
- Production 15–30 days
- 12-month warranty
- CE · RoHS · ETL on request
CAD models (STEP / DWG) are released on request — see “Engineering files” below. Another format or a non-standard variant? Ask an engineer · download center
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 publicly downloadable. Tell us the project; an engineer sends the file after a short check, normally within 1 business day.
Performance curve (P-Q) LWBA2D280-102NT-08
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 380 V). Data version: catalogue curve re-digitised 2026-09-20 (axis-calibrated, cross-checked). 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.
Drawing & Wiring LWBA2D280-102NT-08
Files for LWBA2D280-102NT-08: datasheet, catalogue and drawing PDFs are listed above ↑ · CAD (STEP / DWG) on request — ask an engineer.
Technical description LWBA2D280-102NT-08
LWBA2D280-102NT-08 is a LONGWELL AC Backward Curved Centrifugal Fan from the Backward Curved Centrifugal Fans range, impeller Ø280 mm, rated 380 V AC, maximum airflow 2,163 m³/h, maximum static pressure 773 Pa, noise 80 dB(A), input power 330 W. The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.
Technical data
| Model | LWBA2D280-102NT-08 |
|---|---|
| Series | LWBA2D280 |
| Motor type | AC |
| Phase | 3-phase |
| Rated voltage | 380 V |
| Frequency | 50 Hz |
| Current | 0.7 A |
| Input power | 330 W |
| Speed | 2,700 rpm |
| Max. airflow | 2,163 m³/h |
| Max. static pressure | 773 Pa |
| Noise | 80 dB(A) |
| Ambient temperature | -40 ~ 65 °C |
| Impeller diameter | Ø280 mm |
| Rotor diameter | 102 mm |
| Impeller material | Galvanised sheet steel |
| Protection class | IP54 |
| Insulation class | F |
| Bearing | Maintenance-free ball bearings |
| Duty | S1 |
| Vibration standard | JB/T 8689 |
| 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 LWBA2D280: 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.
Company certificates
Scans of original documents held by Ningbo Longwell Electric Technology Co., Ltd.: the company ISO 9001 / 14001 / 45001 management-system certificate. Click a scan to open the original.
ISO 9001 / 14001 / 45001Management systems of Ningbo Longwell Electric Technology Co., Ltd. (company certificate).
PDFISO 9001 / 14001 / 45001 management system certificateNeed a Declaration of Conformity for this model and your destination market? Ask us — we arrange additional certification on request.
How to order LWBA2D280-102NT-08
Most first orders follow the same eight steps. Quantities, terms and lead times are confirmed in your quotation.
- 1SelectFind models by duty point in the selector or by model number, compare on the curve and add them to your RFQ list.
- 2Engineering checkWithin 1 business day you receive the duty-point check on the curve, price and lead time.
- 3SamplesStock models ship in 1–3 days.
- 4Validation supportDatasheets, drawings, wiring diagrams and DoC per model; test reports, CAD and register maps after a short project check or NDA.
- 5Order & paymentProforma invoice; first orders on T/T 30 / 70.
- 6Production & release15–30 days at the partner factory that builds your model, then inspected and released to LONGWELL standards with outgoing sampling to AQL 2.5.
- 7ShippingFOB / CIF / DDP by sea from Ningbo or Shanghai; express and air on EXW / FCA / DAP.
- 8After-sales12 months standard, extendable to 18–24 months by project agreement; test records retained for 5 years; 8D closed-loop for any issue; annual technical review for framework customers.
Test & release at LONGWELL
Specified and drawn by LONGWELL; built to LONGWELL drawings by qualified partner factories; inspected and released to LONGWELL standards before shipment.
See test and release photos (8)
Alternatives with the same impeller (Ø280 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 | |
|---|---|---|---|---|---|---|---|
| LWBA2D280-102NT-08 this model | 2,163 m³/h | 773 Pa | 2,700 rpm | 330 W | 80 dB(A) | 380 V | |
| LWBA4E280-092NS-03 | 1,267 m³/h | 216 Pa | 1,350 rpm | 80 W | 63 dB(A) | 230 V | View |
| LWBA4E280-092NS-04 | 1,442 m³/h | 288 Pa | 1,500 rpm | 100 W | 66 dB(A) | 230 V | View |
| LWBA2D280-092NT-02 | 1,700 m³/h | 721 Pa | 2,500 rpm | 200 W | 79 dB(A) | 380 V | View |
| LWBA2E280-092NS-01 | 1,700 m³/h | 721 Pa | 2,450 rpm | 230 W | 79 dB(A) | 230 V | View |
| LWBA2D280-102NT-06 | 1,833 m³/h | 773 Pa | 2,650 rpm | 250 W | 80 dB(A) | 380 V | View |
| LWBA2E280-102NS-05 | 1,833 m³/h | 773 Pa | 2,650 rpm | 250 W | 80 dB(A) | 230 V | View |
| LWBA2E280-102NS-07 | 2,163 m³/h | 773 Pa | 2,700 rpm | 330 W | 80 dB(A) | 230 V | View |
| LWFA4E280-188NS-02 | 2,284 m³/h | 391.4 Pa | 1,360 rpm | 1,600 W | 77 dB(A) | 220 V | View |
| LWFA6E280-138NS-04 | 2,318 m³/h | 247.2 Pa | 900 rpm | 450 W | 65 dB(A) | 220 V | View |
| LWFA6D280-138NT-03 | 2,318 m³/h | 247.2 Pa | 900 rpm | 450 W | 65 dB(A) | 380 V | View |
| LWBA2D280-138NT-09 | 2,678 m³/h | 917 Pa | 2,750 rpm | 500 W | 78 dB(A) | 380 V | View |
| LWBA2D280-138NT-10 | 2,833 m³/h | 927 Pa | 2,900 rpm | 680 W | 80 dB(A) | 380 V | View |
| LWFA4D280-188NT-01 | 3,502 m³/h | 463.5 Pa | 1,360 rpm | 1,700 W | 77 dB(A) | 380 V | View |
| LWFA4D280-188ST-01 | 3,811 m³/h | 463.5 Pa | 1,400 rpm | 1,400 W | 82 dB(A) | 380 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 LWBA2D280 seriesSame impeller, different speed grade or wiring
Adjacent sizesOne size up when airflow is short, one size down when it is too much
LWBE3G270-092NU-01Ø270 mm · 1,545 m³/h · 332 Pa · ECadjacent size
LWBE3G270-092NS-02Ø270 mm · 1,545 m³/h · 332 Pa · ECadjacent size
LWFA6E300-138DS-01Ø300 mm · 1,596 m³/h · 368 Pa · ACadjacent size
LWBE3G250-092PS-16Ø250 mm · 1,531 m³/h · 785 Pa · ECadjacent size
LWFA4E250-138NS-02Ø250 mm · 2,575 m³/h · 401.7 Pa · ACadjacent size
LWBE3G250-072PS-17Ø250 mm · 1,421 m³/h · 639 Pa · ECadjacent sizeAlternatives at a similar dutySimilar airflow, different construction or motor platform
LWBA2E280-102NS-07Ø280 mm · 2,163 m³/h · 773 Pa · ACsimilar duty
LWBA4E315-102NS-06Ø315 mm · 2,163 m³/h · 412 Pa · ACsimilar duty
LWBA4D315-102NT-10Ø315 mm · 2,163 m³/h · 412 Pa · ACsimilar duty
LWBA6E400-102NS-05Ø400 mm · 2,163 m³/h · 216 Pa · ACsimilar duty
LWBD3G310-102NH-03Ø310 mm · 2,163 m³/h · 510 Pa · DCsimilar duty
LWBA(RT)355-PW-012,160 m³/hsimilar dutySee all Backward Curved Centrifugal Fans · select by duty point
Go deeper on longwellfans.com
Application guides, project stories and engineering calculators for centrifugal fans — on our main site.
Solutions
- Commercial HVACAHU, rooftop, fan coil, air curtain
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- Data center coolingCRAH, FanGrid, server rooms