Representative image of the series — dimensions and configuration of this model are given in the drawing and data table below.
- ImpellerØ400 mm15.7 in
- Max airflow5,974 m³/h3,516 CFM
- Max static pressure345.05 Pa1.39 in. wg
- Voltage380 V
- Speed700 rpm
- Input power1,700 W2.28 hp
- Noise65 dB(A)
LWFA8D400-188NT-03 AC Forward Curved Centrifugal Fan Ø400 mm
Ø400 mm | AC | Max airflow 5,974 m³/h | Max static pressure 345.05 Pa | 65 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
Drawing & Curve LWFA8D400-188NT-03
Files for LWFA8D400-188NT-03: datasheet, catalogue and drawing PDFs are listed above ↑ · CAD (STEP / DWG) on request — ask an engineer.
Technical description LWFA8D400-188NT-03
LWFA8D400-188NT-03 is a LONGWELL AC Forward Curved Centrifugal Fan from the Forward Curved Centrifugal Fans range, impeller Ø400 mm, rated 380 V AC, maximum airflow 5,974 m³/h, maximum static pressure 345.05 Pa, noise 65 dB(A), input power 1,700 W. The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.
Technical data
| Model | LWFA8D400-188NT-03 |
|---|---|
| Series | LWFA8D400 |
| Motor type | AC |
| Phase | 3-phase |
| Rated voltage | 380 V |
| Frequency | 50 Hz |
| Current | 3.7 A |
| Input power | 1,700 W |
| Speed | 700 rpm |
| Max. airflow | 5,974 m³/h |
| Max. static pressure | 345.05 Pa |
| Noise | 65 dB(A) |
| Ambient temperature | -30 ~ 60 °C |
| Impeller diameter | Ø400 mm |
| Rotor diameter | 188 mm |
| Insulation class | F |
| Bearing | Maintenance-free ball bearings |
| Duty | S1 |
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 LWFA8D400: 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 LWFA8D400-188NT-03
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 (Ø400 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 | |
|---|---|---|---|---|---|---|---|
| LWFA8D400-188NT-03 this model | 5,974 m³/h | 345.05 Pa | 700 rpm | 1,700 W | 65 dB(A) | 380 V | |
| LWBA6E400-102NS-05 | 2,163 m³/h | 216 Pa | 940 rpm | 135 W | 56 dB(A) | 230 V | View |
| LWBA6E400-102NS-06 | 2,421 m³/h | 278 Pa | 1,050 rpm | 155 W | 57 dB(A) | 230 V | View |
| LWBA4D400-102NT-03 | 2,936 m³/h | 464 Pa | 1,380 rpm | 265 W | 64 dB(A) | 380 V | View |
| LWBA4E400-102NS-01 | 2,936 m³/h | 464 Pa | 1,350 rpm | 260 W | 64 dB(A) | 230 V | View |
| LWBA4D400-102NT-04 | 3,090 m³/h | 515 Pa | 1,460 rpm | 320 W | 68 dB(A) | 380 V | View |
| LWBA4E400-102NS-02 | 3,090 m³/h | 515 Pa | 1,450 rpm | 330 W | 68 dB(A) | 230 V | View |
| LWBA4D400-138NT-10 | 4,120 m³/h | 494 Pa | 1,380 rpm | 440 W | 66 dB(A) | 380 V | View |
| LWBA4E400-138NS-09 | 4,120 m³/h | 494 Pa | 1,380 rpm | 430 W | 66 dB(A) | 230 V | View |
| LWBA4D400-138NT-08 | 4,532 m³/h | 494 Pa | 1,370 rpm | 550 W | 69 dB(A) | 380 V | View |
| LWBA4E400-138NS-07 | 4,532 m³/h | 494 Pa | 1,380 rpm | 550 W | 69 dB(A) | 230 V | View |
| LWBA4D400-138NT-11 | 5,082 m³/h | 504 Pa | 1,400 rpm | 484 W | 72 dB(A) | 380 V | View |
| LWFA4D400-188NT-01 | 6,695 m³/h | 1,030 Pa | 1,400 rpm | 4,800 W | 82 dB(A) | 380 V | View |
| LWFA6D400-188NT-02 | 7,313 m³/h | 540.75 Pa | 870 rpm | 2,800 W | 74 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.
Adjacent sizesOne size up when airflow is short, one size down when it is too much
LWBE3G355-092PS-15Ø355 mm · 2,472 m³/h · 350 Pa · ECadjacent size
LWBE3G355-102PS-18Ø355 mm · 3,915 m³/h · 770 Pa · ECadjacent size
LWBE3G355-102PS-17Ø355 mm · 3,142 m³/h · 670 Pa · ECadjacent size
LWBE3G355-102PS-16Ø355 mm · 3,554 m³/h · 618 Pa · ECadjacent size
LWBE3G355-138PT-05Ø355 mm · 7,045 m³/h · 830 Pa · ECadjacent size
LWBE3G355-102NS-15Ø355 mm · 3,915 m³/h · 770 Pa · ECadjacent sizeAlternatives at a similar dutySimilar airflow, different construction or motor platform
LWAA4D420S-5MEB-04Ø420 mm · 5,974 m³/h · ACsimilar duty
LWAA4E420S-5MEB-02Ø420 mm · 5,974 m³/h · ACsimilar duty
LWBA2D355-188NT-18Ø355 mm · 5,974 m³/h · 1,339 Pa · ACsimilar duty
LWPVD-500(20")S-016,000 m³/hsimilar duty
LWAE3G500SS-5PKW-15Ø500 mm · 5,900 m³/h · ECsimilar duty
LWAE3G450SS-5MEW-09Ø450 mm · 5,871 m³/h · 163 Pa · ECsimilar dutySee all 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
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