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- ImpellerØ250 mm9.8 in
- Max airflow1,219 m³/h717 CFM
- Voltage110-120 V
- Speed3,000 rpm
- Input power228 W
- Noise69 dB(A)
LWDA-250 (10″)U-MWN-01 AC Mixed Flow Fan Ø250 mm
Ø250 mm | AC | Max airflow 1,219 m³/h | 69 dB(A)
- Factory direct
- OEM / ODM
- Samples in 1–3 days
- Production 15–30 days
- 18-month warranty
- CE · RoHS · ETL on request
LWDA-250 (10")U-MWN-01 is a LONGWELL AC Mixed Flow Fan from the Mixed Flow Fans range, impeller Ø250 mm, rated 110-120 V AC, maximum airflow 1,219 m³/h, noise 69 dB(A), input power 228 W. The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.
Technical data
| Model | LWDA-250 (10")U-MWN-01 |
|---|---|
| Series | LWDA250 |
| Motor type | AC |
| Phase | 1-phase |
| Rated voltage | 110-120 V |
| Frequency | 60 Hz |
| Input power | 228 W |
| Speed | 3,000 rpm |
| Max. airflow | 1,219 m³/h |
| Noise | 69 dB(A) |
| Impeller diameter | Ø250 mm |
| Inlet diameter | 250mm |
Typical applications
- Residential and commercial fresh-air systems
- Kitchen and bathroom exhaust
- Local pressurisation and booster duty
- Hotel and office ventilation
Series LWDA250: 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 (Ø250 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 | |
|---|---|---|---|---|---|---|---|
| LWDA-250 (10")U-MWN-01 this model | 1,219 m³/h | see curve | 3,000 rpm | 228 W | 69 dB(A) | 110-120 V | |
| LWDA-250S-MBN-10 | 1,034 m³/h | 515 Pa | 2,615 rpm | 165 W | 71 dB(A) | 230 V | View |
| LWDA-250 (10")U-MWN-03 | 1,219 m³/h | see curve | 3,000 rpm | 228 W | 62 dB(A) | 110-120 V | View |
| LWDA-250(8'')S-PWN-05 | 1,600 m³/h | 420 Pa | 2,500 rpm | 175 W | 50 dB(A) | 230 V | View |
| LWDA-250 (10")S-MWN-02 | 1,900 m³/h | see curve | 2,750 rpm | 162 W | 68 dB(A) | 220-240 V | View |
| LWDA-250 (10")S-MWN-04 | 1,900 m³/h | see curve | 2,750 rpm | 162 W | 60 dB(A) | 220-240 V | View |
| LWDA-250(10")S-MWN-06 | 2,100 m³/h | 215 Pa | 2,800 rpm | 100 W | 65 dB(A) | 220 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 LWDA250 seriesSame impeller, different speed grade or wiring
LWDA-250S-MBN-10Ø250 mm · 1,034 m³/h · 515 Pa · ACsame series
LWDA-250 (10")U-MWN-03Ø250 mm · 1,219 m³/h · ACsame series
LWDA-250 (10")S-MWN-04Ø250 mm · 1,900 m³/h · ACsame series
LWDA-250 (10")S-MWN-02Ø250 mm · 1,900 m³/h · ACsame series
LWDA-250(8'')S-PWN-05Ø250 mm · 1,600 m³/h · 420 Pa · ACsame series
LWDA-250(10")S-MWN-06Ø250 mm · 2,100 m³/h · 215 Pa · ACsame seriesAdjacent sizesOne size up when airflow is short, one size down when it is too much
LWDE-200 (8")S-MWN-04Ø200 mm · 1,310 m³/h · ECadjacent size
LWDE-200 (8")S-MWN-02Ø200 mm · 1,310 m³/h · ECadjacent size
LWDE-300 (12")U-MWN-01Ø300 mm · 1,763 m³/h · ECadjacent sizeLWDE-300 (12")S-MWN-02Ø300 mm · 3,500 m³/h · ECadjacent size
LWDA-200(8")S-PWN-09Ø200 mm · 910 m³/h · 384 Pa · ACadjacent size
LWDA-300 (12")S-MWN-04Ø300 mm · 3,150 m³/h · ACadjacent sizeAlternatives at a similar dutySimilar airflow, different construction or motor platform
LWDE-250 (10")U-MWN-03Ø250 mm · 1,219 m³/h · ECsimilar dutyLWDE-250 (10")U-MWN-01Ø250 mm · 1,219 m³/h · ECsimilar duty
LWBE3G250-072NS-29Ø250 mm · 1,215 m³/h · 391 Pa · ECsimilar duty
LWBE3G250-072PS-15Ø250 mm · 1,215 m³/h · 391 Pa · ECsimilar duty
LWDE-200S-MBN-09Ø200 mm · 1,210 m³/h · 1,030 Pa · ECsimilar dutySee all Impeller Ø250–400 mm · select by duty point