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- ImpellerØ350 mm13.8 in
- Max airflow3,467 m³/h2,041 CFM
- Voltage110-120 V
- Speed2,800 rpm
- Input power659 W
- Noise77 dB(A)
LWDE-350 (14″)U-MWN-01 EC Mixed Flow Fan Ø350 mm
Ø350 mm | EC | Max airflow 3,467 m³/h | 77 dB(A)
- Factory direct
- OEM / ODM
- Samples in 1–3 days
- Production 15–30 days
- 18-month warranty
- CE · RoHS · ETL on request
LWDE-350 (14")U-MWN-01 is a LONGWELL EC Mixed Flow Fan from the Mixed Flow Fans range, impeller Ø350 mm, rated 110-120 V EC, maximum airflow 3,467 m³/h, noise 77 dB(A), input power 659 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-350 (14")U-MWN-01 |
|---|---|
| Series | LWDE350 |
| Motor type | EC |
| Phase | 1-phase |
| Rated voltage | 110-120 V |
| Frequency | 60 Hz |
| Input power | 659 W |
| Speed | 2,800 rpm |
| Max. airflow | 3,467 m³/h |
| Noise | 77 dB(A) |
| Impeller diameter | Ø350 mm |
| Inlet diameter | 350mm |
Typical applications
- Residential and commercial fresh-air systems
- Kitchen and bathroom exhaust
- Local pressurisation and booster duty
- Hotel and office ventilation
Series LWDE350: 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 (Ø350 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-350 (14")U-MWN-01 this model | 3,467 m³/h | see curve | 2,800 rpm | 659 W | 77 dB(A) | 110-120 V | |
| LWDE-350 (14")S-MWN-02 | 6,200 m³/h | see curve | 2,800 rpm | 659 W | 77 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.
Other models in the LWDE350 seriesSame impeller, different speed grade or wiring
Adjacent sizesOne size up when airflow is short, one size down when it is too much
LWDA-355 (14")U-MWN-03Ø355 mm · 2,130 m³/h · ACadjacent size
LWDE-355 (14")U-MWN-03Ø355 mm · 3,467 m³/h · ECadjacent sizeLWDE-355 (14")S-MWN-04Ø355 mm · 6,200 m³/h · ECadjacent size
LWDA-355 (14")S-MWN-04Ø355 mm · 6,450 m³/h · ACadjacent size
LWDA-315(12.6'')S-PWN-05Ø315 mm · 2,500 m³/h · 450 Pa · ACadjacent size
LWDA-315S-MBN-02Ø315 mm · 1,680 m³/h · 593 Pa · ACadjacent sizeAlternatives at a similar dutySimilar airflow, different construction or motor platform
LWAE3G350SS-5PEW-03Ø350 mm · 3,451 m³/h · 128 Pa · ECsimilar duty
LWAE3G350SS-5PGW-05Ø350 mm · 3,451 m³/h · 128 Pa · ECsimilar duty
LWAE3G350ST-5PNW-02Ø350 mm · 3,451 m³/h · 128 Pa · ECsimilar duty
LWAE3G350ST-5PGW-06Ø350 mm · 3,451 m³/h · 128 Pa · ECsimilar duty
LWAE3G350ST-5PEW-04Ø350 mm · 3,451 m³/h · 128 Pa · ECsimilar dutySee all Impeller Ø250–400 mm · select by duty point