Need a non-standard size or another format? Ask an engineer or search the download center.
- ImpellerØ300 mm11.8 in
- Max airflow1,900 m³/h1,118 CFM
- Voltage110-120 V
- Speed3,450 rpm
- Input power489 W
- Noise78 dB(A)
LWDA-300 (12″)U-MWN-01 AC Mixed Flow Fan Ø300 mm
Ø300 mm | AC | Max airflow 1,900 m³/h | 78 dB(A)
- Factory direct
- OEM / ODM
- Samples in 1–3 days
- Production 15–30 days
- 18-month warranty
- CE · RoHS · ETL on request
LWDA-300 (12")U-MWN-01 is a LONGWELL AC Mixed Flow Fan from the Mixed Flow Fans range, impeller Ø300 mm, rated 110-120 V AC, maximum airflow 1,900 m³/h, noise 78 dB(A), input power 489 W. The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.
Technical data
| Model | LWDA-300 (12")U-MWN-01 |
|---|---|
| Series | LWDA300 |
| Motor type | AC |
| Phase | 1-phase |
| Rated voltage | 110-120 V |
| Frequency | 60 Hz |
| Input power | 489 W |
| Speed | 3,450 rpm |
| Max. airflow | 1,900 m³/h |
| Noise | 78 dB(A) |
| Impeller diameter | Ø300 mm |
| Inlet diameter | 300mm |
Typical applications
- Residential and commercial fresh-air systems
- Kitchen and bathroom exhaust
- Local pressurisation and booster duty
- Hotel and office ventilation
Series LWDA300: 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 (Ø300 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-300 (12")U-MWN-01 this model | 1,900 m³/h | see curve | 3,450 rpm | 489 W | 78 dB(A) | 110-120 V | |
| LWDA-300 (12")U-MWN-03 | 1,900 m³/h | see curve | 3,450 rpm | 489 W | 71 dB(A) | 110-120 V | View |
| LWDA-300(12")S-MWN-05 | 3,000 m³/h | 230 Pa | 2,800 rpm | 120 W | 68 dB(A) | 220 V | View |
| LWDA-300 (12")S-MWN-02 | 3,150 m³/h | see curve | 2,900 rpm | 320 W | 72 dB(A) | 220-240 V | View |
| LWDA-300 (12")S-MWN-04 | 3,150 m³/h | see curve | 2,900 rpm | 320 W | 65 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 LWDA300 seriesSame impeller, different speed grade or wiring
Adjacent sizesOne size up when airflow is short, one size down when it is too much
LWDE-315S-MBN-01Ø315 mm · 1,839 m³/h · 793 Pa · ECadjacent 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 size
LWDE-350 (14")U-MWN-01Ø350 mm · 3,467 m³/h · ECadjacent size
LWDE-250 (10")S-MWN-04Ø250 mm · 2,075 m³/h · ECadjacent size
LWDE-250 (10")S-MWN-02Ø250 mm · 2,075 m³/h · ECadjacent sizeAlternatives at a similar dutySimilar airflow, different construction or motor platform
LWCD-120780MN-06Ø120 mm · 1,900 m³/h · 140 Pa · DCsimilar duty
LWCE-120780SN-06Ø120 mm · 1,900 m³/h · 141 Pa · ECsimilar duty
LWDA-250 (10")S-MWN-04Ø250 mm · 1,900 m³/h · ACsimilar duty
LWDA-250 (10")S-MWN-02Ø250 mm · 1,900 m³/h · ACsimilar duty
LWAE3G300SS-5PEW-12Ø300 mm · 1,906 m³/h · 118 Pa · ECsimilar dutySee all Impeller Ø250–400 mm · select by duty point