Representative image of the series — dimensions and configuration of this model are given in the drawing and data table below.
- ImpellerØ225 mm8.9 in
- Max airflow1,761 m³/h1,036 CFM
- Max static pressure288.4 Pa1.16 in. wg
- Voltage230 V
- Speed1,320 rpm
- Input power510 W
- Noise65 dB(A)
LWFA4E225-138NS-02 AC Forward Curved Centrifugal Fan Ø225 mm
Ø225 mm | AC | Max airflow 1,761 m³/h | Max static pressure 288.4 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 LWFA4E225-138NS-02
Files for LWFA4E225-138NS-02: datasheet, catalogue and drawing PDFs are listed above ↑ · CAD (STEP / DWG) on request — ask an engineer.
Technical description LWFA4E225-138NS-02
LWFA4E225-138NS-02 is a LONGWELL AC Forward Curved Centrifugal Fan from the Forward Curved Centrifugal Fans range, impeller Ø225 mm, rated 230 V AC, maximum airflow 1,761 m³/h, maximum static pressure 288.4 Pa, noise 65 dB(A), input power 510 W. The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.
Technical data
| Model | LWFA4E225-138NS-02 |
|---|---|
| Series | LWFA4E225 |
| Motor type | AC |
| Phase | 1-phase |
| Rated voltage | 230 V |
| Frequency | 50 Hz |
| Current | 2.3 A |
| Input power | 510 W |
| Speed | 1,320 rpm |
| Max. airflow | 1,761 m³/h |
| Max. static pressure | 288.4 Pa |
| Noise | 65 dB(A) |
| Ambient temperature | -30 ~ 60 °C |
| Storage temperature | -30 ~ 80℃ |
| Humidity | 0 ~ 85 % RH |
| Altitude | < 1000m |
| Impeller diameter | Ø225 mm |
| Rotor diameter | 138 mm |
| Impeller material | SGCC ( Impeller ) |
| Insulation class | F |
| Bearing | Maintenance-free ball bearings |
| Duty | S1 |
| Balance grade | G6.3 |
| Vibration standard | JB/T 8689 |
| Service life | 40,000Hours(L10), At 40 °Croom, humidity 15%~65%RH |
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 LWFA4E225: 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 LWFA4E225-138NS-02
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 (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 | |
|---|---|---|---|---|---|---|---|
| LWFA4E225-138NS-02 this model | 1,761 m³/h | 288.4 Pa | 1,320 rpm | 510 W | 65 dB(A) | 230 V | |
| LWBA2D225-092NT-03 | 618 m³/h | 165 Pa | 1,420 rpm | 45 W | 54 dB(A) | 380 V | View |
| LWBA4D225-092NT-04 | 690 m³/h | 216 Pa | 1,650 rpm | 47 W | 60 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 |
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 LWFA4E225 seriesSame impeller, different speed grade or wiring
Adjacent sizesOne size up when airflow is short, one size down when it is too much
LWBA2E220-092NS-01Ø220 mm · 1,029 m³/h · 662 Pa · ACadjacent size
LWBE3G220-072NS-09Ø220 mm · 1,019.7 m³/h · 597.4 Pa · ECadjacent size
LWBE3G220-072NS-07Ø220 mm · 937.3 m³/h · 721 Pa · ECadjacent size
LWBE3G220-072NS-08Ø220 mm · 1,184.5 m³/h · 978.5 Pa · ECadjacent size
LWBA2E220-092NS-02Ø220 mm · 945 m³/h · 515 Pa · ACadjacent size
LWBA4E220-092NS-03Ø220 mm · 767 m³/h · 399 Pa · ACadjacent sizeAlternatives at a similar dutySimilar airflow, different construction or motor platform
LWDE-300 (12")U-MWN-03Ø300 mm · 1,763 m³/h · ECsimilar duty
LWDE-300 (12")U-MWN-01Ø300 mm · 1,763 m³/h · ECsimilar duty
LWAE3G250SS-7MEW-03Ø250 mm · 1,751 m³/h · 290 Pa · ECsimilar duty
LWAE3G250SS-7MGW-05Ø250 mm · 1,751 m³/h · 290 Pa · ECsimilar duty
LWAE3G250SS-7MNW-01Ø250 mm · 1,751 m³/h · 290 Pa · ECsimilar duty
LWAE3G250ST-7MEW-04Ø250 mm · 1,751 m³/h · 290 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.
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