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.










- ImpellerØ125 mm
- Max airflow386 m³/h
- Max static pressure839 Pa
- Voltage230 V
- Speed3,400 rpm
- Input power85 W
- Noise69 dB(A)
LWDE-125S-MBN-06 EC Metal Inline Duct Fan Ø125 mm
Ø125 mm | EC | Max airflow 386 m³/h | Max static pressure 839 Pa | 69 dB(A)
- Factory direct
- OEM / ODM
- Samples in 1–3 days
- Production 15–30 days
- 18-month warranty
- CE · ETL · RoHS
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 downloadable. Tell us the project; an engineer sends the file after a short check, normally within 1 business day.



Downloads for LWDE-125S-MBN-06
PDFDatasheetNeed a non-standard size or another format? Ask an engineer or search the download center.
LWDE-125S-MBN-06 is a LONGWELL EC Metal Inline Duct Fan from the Metal Inline Duct Fans range, impeller Ø125 mm, rated 230 V EC, maximum airflow 386 m³/h, maximum static pressure 839 Pa, noise 69 dB(A), input power 85 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 | LWDE-125S-MBN-06 |
|---|---|
| Series | LWDE125 |
| Motor type | EC |
| Phase | 1-phase |
| Rated voltage | 230 V |
| Frequency | 50 Hz |
| Current | 0.65 A |
| Input power | 85 W |
| Speed | 3,400 rpm |
| Max. airflow | 386 m³/h |
| Max. static pressure | 839 Pa |
| Noise | 69 dB(A) |
| Storage temperature | -25 ~ 70℃ |
| Humidity | 0 ~ 85 % RH |
| Altitude | < 1000m |
| Impeller diameter | Ø125 mm |
| Inlet diameter | 125mm |
| Impeller material | PA66+GF ( Impeller ) |
| Protection class | IP55 |
| Insulation class | B |
| Service life | 40,000Hours(L10), At 40 °Croom, humidity 15%~65%RH |
Typical applications
- Residential and commercial fresh-air systems
- Kitchen and bathroom exhaust
- Local pressurisation and booster duty
- Hotel and office ventilation
Series LWDE125: 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 (Ø125 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 | |
|---|---|---|---|---|---|---|---|
| LWDE-125S-MBN-06 this model | 386 m³/h | 839 Pa | 3,400 rpm | 85 W | 69 dB(A) | 230 V | |
| LWDE-125 (5")U-PWN-01 | 410 m³/h | see curve | 3,350 rpm | 35 W | 52 dB(A) | 110-120 V | View |
| LWDE-125 (5")U-MWN-03 | 410 m³/h | see curve | 3,350 rpm | 35 W | 51 dB(A) | 110-120 V | View |
| LWDE-125 (5")S-PWN-02 | 697 m³/h | see curve | 3,350 rpm | 35 W | 52 dB(A) | 220-240 V | View |
| LWDE-125 (5")S-MWN-04 | 697 m³/h | see curve | 3,350 rpm | 35 W | 51 dB(A) | 220-240 V | View |
Not sure which one? Send us the duty point (airflow / static pressure / noise limit) — use the selector or ask an engineer.
Related products
Other models in the LWDE125 seriesSame impeller, different speed grade or wiring
Adjacent sizesOne size up when airflow is short, one size down when it is too much
LWDE3G150-IS-03Ø147 mm · 705 m³/h · 465 Pa · ECadjacent size
LWDE3G150-IS-01Ø147 mm · 705 m³/h · 465 Pa · ECadjacent size
LWDA-100S-PWN-15Ø100 mm · 319 m³/h · 185 Pa · ACadjacent size
LWDA-150(6")U-PWN-13Ø150 mm · 674 m³/h · 355 Pa · ACadjacent size
LWDA-150(6")U-PWN-14Ø150 mm · 535 m³/h · 302 Pa · ACadjacent size
LWDD-100M-MBN-12Ø100 mm · 241 m³/h · 365 Pa · DCadjacent sizeAlternatives at a similar dutySimilar airflow, different construction or motor platform
LWBD3G133-072NM-02Ø133 mm · 386 m³/h · 335 Pa · DCsimilar duty
LWBD3G133-072NH-03Ø133 mm · 386 m³/h · 335 Pa · DCsimilar duty
LWDE3G100-IS-01Ø98 mm · 385 m³/h · 269 Pa · ECsimilar duty
LWDE3G100-IS-03Ø98 mm · 385 m³/h · 269 Pa · ECsimilar duty
LWFA2E120-092DS-04Ø120 mm · 391 m³/h · 402 Pa · ACsimilar duty
LWFA2E120-092DS-06Ø120 mm · 391 m³/h · 443 Pa · ACsimilar dutySee all Impeller Ø100–150 mm · select by duty point





