Need a non-standard size or another format? Ask an engineer or search the download center.
- ImpellerØ125 mm
- Max airflow697 m³/h
- Voltage220-240 V
- Speed3,350 rpm
- Input power35 W
- Noise51 dB(A)
LWDE-125 (5″)S-MWN-04 EC Ultra Silent Metal Duct Fan Ø125 mm
Ø125 mm | EC | Max airflow 697 m³/h | 51 dB(A)
- Factory direct
- OEM / ODM
- Samples in 1–3 days
- Production 15–30 days
- 18-month warranty
- CE · ETL · RoHS
LWDE-125 (5")S-MWN-04 is a LONGWELL EC Ultra Silent Metal Duct Fan from the Ultra Silent Duct Fans range, impeller Ø125 mm, rated 220-240 V EC, maximum airflow 697 m³/h, noise 51 dB(A), input power 35 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-125 (5")S-MWN-04 |
|---|---|
| Series | LWDE125 |
| Motor type | EC |
| Phase | 1-phase |
| Rated voltage | 220-240 V |
| Frequency | 50 Hz |
| Input power | 35 W |
| Speed | 3,350 rpm |
| Max. airflow | 697 m³/h |
| Noise | 51 dB(A) |
| Impeller diameter | Ø125 mm |
| Inlet diameter | 125mm |
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-125 (5")S-MWN-04 this model | 697 m³/h | see curve | 3,350 rpm | 35 W | 51 dB(A) | 220-240 V | |
| LWDE-125S-MBN-06 | 386 m³/h | 839 Pa | 3,400 rpm | 85 W | 69 dB(A) | 230 V | View |
| 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 |
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 sizeLWDA-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
See all Impeller Ø100–150 mm · select by duty point