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 airflow4,944 m³/h2,908 CFM
- Max static pressure208 Pa0.84 in. wg
- Voltage220/230 V
- Speed1,600 rpm
- Input power315 W
- Noise69 dB(A)
LWAE3G400SS-5MEW-03 EC Axial Fan Ø400 mm
Ø400 mm | EC | Max airflow 4,944 m³/h | Max static pressure 208 Pa | 69 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
Cross-reference: same impeller size class as Ziehl-Abegg FN040, ebm-papst W3G400 — side-by-side comparison on longwellfans.com. Mounting is confirmed against the LONGWELL drawing before ordering.
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) LWAE3G400SS-5MEW-03
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 220/230 V). Data version: 2026-10-19. 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.
Video LWAE3G400SS-5MEW-03
LWAE3G400SS-5MEW-03 — construction, airflow path and running condition.
Axial Fan LWAE3G400 Series: High Airflow, Quiet Cooling | LWAE3G400SS-5MEW-03 · open in video library
Drawing, Curve & Wiring LWAE3G400SS-5MEW-03
Files for LWAE3G400SS-5MEW-03: datasheet, catalogue and drawing PDFs are listed above ↑ · CAD (STEP / DWG) on request — ask an engineer.
Technical description LWAE3G400SS-5MEW-03
LWAE3G400SS-5MEW-03 is a LONGWELL EC Axial Fan from the EC Axial Fans range, impeller Ø400 mm, rated 220/230 V EC, maximum airflow 4,944 m³/h, maximum static pressure 208 Pa, noise 69 dB(A), input power 315 W. The EC motor integrates the drive electronics: stepless speed control by 0–10 V or PWM signal, speed feedback and high efficiency at part load.
Technical data
| Model | LWAE3G400SS-5MEW-03 |
|---|---|
| Series | LWAE3G400 |
| Motor type | EC |
| Phase | 1-phase |
| Rated voltage | 220/230 V |
| Voltage range | 176 ~ 264 V |
| Frequency | 50/60 Hz |
| Current | 1.4 A |
| Input power | 315 W |
| Speed | 1,600 rpm |
| Max. airflow | 4,944 m³/h |
| Max. airflow (CFM) | 2,908 CFM |
| Max. static pressure | 208 Pa |
| Noise | 69 dB(A) |
| Ambient temperature | -25 ~ +60 ℃ |
| Storage temperature | -25 ~ 70℃ |
| Humidity | 0 ~ 85 % RH |
| Altitude | < 1000m |
| Impeller diameter | Ø400 mm |
| Impeller material | Sheet steel ( Impeller ) |
| Protection class | IP54 |
| Insulation class | B |
| Bearing | Maintenance-free deep groove 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 |
| Net weight | 3.6 |
| Speed control | Control input 0~10VDC / PWM |
| Control signal | Control signal VSP voltage range1VDC~9.5VDC(During normal operation, when the VSP voltage is below 1.0VDC, the motor switches from operating mode to standby mode) |
| PWM input | PWM signal: frequency 1K–10KHz, amplitude 10–12V,duty cycle 30%–70% . |
| Speed feedback | Tach output: 1 Pulse/R; FG internal open circuit output, external pull-up resistor 10KΩ, pull-up voltage +10V |
| Auxiliary output | Output 10VDC, Max Current 10 mA |
| Protection functions | Over-temperature protection, Over-current protection, Locked-rotor protection’ |
| Soft start | Delay time <20 seconds to full speed |
Typical applications
- Condensers, evaporators and dry coolers
- Heat-pump and chiller outdoor units
- Building and workshop ventilation
- Cooling towers and transformer cooling
Series LWAE3G400: 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 LWAE3G400SS-5MEW-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 · EC)
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 | |
|---|---|---|---|---|---|---|---|
| LWAE3G400SS-5MEW-03 this model | 4,944 m³/h | 208 Pa | 1,600 rpm | 315 W | 69 dB(A) | 220/230 V | |
| LWAE3G400SS-5MEW-09 | 4,871 m³/h | 190 Pa | 1,800 rpm | 264 W | 66 dB(A) | 230 V | View |
| LWAE3G400ST-5MNW-02 | 4,944 m³/h | 208 Pa | 1,600 rpm | 315 W | 69 dB(A) | 220/230 V | View |
| LWAE3G400ST-5MGW-06 | 4,944 m³/h | 208 Pa | 1,600 rpm | 315 W | 69 dB(A) | 220/230 V | View |
| LWAE3G400ST-5MEW-04 | 4,944 m³/h | 208 Pa | 1,600 rpm | 315 W | 69 dB(A) | 220/230 V | View |
| LWAE3G400SS-5MNW-01 | 4,944 m³/h | 208 Pa | 1,600 rpm | 315 W | 69 dB(A) | 220 V | View |
| LWAE3G400SS-5MGW-05 | 4,944 m³/h | 208 Pa | 1,600 rpm | 315 W | 69 dB(A) | 220/230 V | View |
| LWAE3G400ST-5MEW-08 | 5,562 m³/h | 258 Pa | 1,600 rpm | 360 W | 67 dB(A) | 220/230 V | View |
| LWAE3G400SS-5MEW-07 | 5,562 m³/h | 258 Pa | 1,600 rpm | 360 W | 67 dB(A) | 220/230 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 LWAE3G400 seriesSame impeller, different speed grade or wiring
LWAE3G400SS-5MEW-07Ø400 mm · 5,562 m³/h · 258 Pa · ECsame series
LWAE3G400SS-5MEW-09Ø400 mm · 4,871 m³/h · 190 Pa · ECsame series
LWAE3G400SS-5MGW-05Ø400 mm · 4,944 m³/h · 208 Pa · ECsame series
LWAE3G400SS-5MNW-01Ø400 mm · 4,944 m³/h · 208 Pa · ECsame series
LWAE3G400ST-5MEW-04Ø400 mm · 4,944 m³/h · 208 Pa · ECsame series
LWAE3G400ST-5MEW-08Ø400 mm · 5,562 m³/h · 258 Pa · ECsame seriesAdjacent sizesOne size up when airflow is short, one size down when it is too much
LWA-400S(T)M-05EØ390 mm · 5,860 m³/h · 750 Pa · ACadjacent size
LWAA4D420S-5MEB-03Ø420 mm · 5,459 m³/h · ACadjacent size
LWAA4E420S-5MEB-01Ø420 mm · 5,459 m³/h · ACadjacent size
LWAA4D420S-5MEB-04Ø420 mm · 5,974 m³/h · ACadjacent size
LWAA4E420S-5MEB-02Ø420 mm · 5,974 m³/h · ACadjacent size
LWEA355S(T)M-159EØ355 mm · 3,265 m³/h · 93 Pa · ACadjacent sizeAlternatives at a similar dutySimilar airflow, different construction or motor platform
See all Axial Fans · select by duty point
Go deeper on longwellfans.com
Application guides, project stories and engineering calculators for axial fans — on our main site.
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