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.
- ImpellerØ250 mm9.8 in
- Max airflow1,600 m³/h942 CFM
- Max static pressure420 Pa1.69 in. wg
- Voltage230 V
- Speed2,500 rpm
- Input power175 W
- Noise50 dB(A)
LWDA-250(8”)S-PWN-05 AC Plastic Inline Duct Fan Ø250 mm
Ø250 mm | AC | Max airflow 1,600 m³/h | Max static pressure 420 Pa | 50 dB(A)
- Factory direct
- OEM / ODM
- Samples in 1–3 days
- Production 15–30 days
- 18-month warranty
- CE · RoHS · ETL on request
Need a non-standard size or another format? Ask an engineer or search the download center.
LWDA-250(8'')S-PWN-05 is a LONGWELL AC Plastic Inline Duct Fan from the Plastic Inline Duct Fans range, impeller Ø250 mm, rated 230 V AC, maximum airflow 1,600 m³/h, maximum static pressure 420 Pa, noise 50 dB(A), input power 175 W. The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.
Technical data
| Model | LWDA-250(8'')S-PWN-05 |
|---|---|
| Series | LWDA250 |
| Motor type | AC |
| Phase | 1-phase |
| Rated voltage | 230 V |
| Frequency | 50 Hz |
| Input power | 175 W |
| Speed | 2,500 rpm |
| Max. airflow | 1,600 m³/h |
| Max. static pressure | 420 Pa |
| Noise | 50 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(8'')S-PWN-05 this model | 1,600 m³/h | 420 Pa | 2,500 rpm | 175 W | 50 dB(A) | 230 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-01 | 1,219 m³/h | see curve | 3,000 rpm | 228 W | 69 dB(A) | 110-120 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 (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")U-MWN-01Ø250 mm · 1,219 m³/h · ACsame series
LWDA-250 (10")S-MWN-02Ø250 mm · 1,900 m³/h · 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
LWCD-120680MN-06Ø120 mm · 1,600 m³/h · 122 Pa · DCsimilar duty
LWCD-150500MN-06Ø150 mm · 1,600 m³/h · 63 Pa · DCsimilar duty
LWCE-110720SN-06Ø110 mm · 1,600 m³/h · 223 Pa · ECsimilar duty
LWCE-120680SN-06Ø120 mm · 1,600 m³/h · 123 Pa · ECsimilar duty
LWCE-150380SN-06Ø150 mm · 1,600 m³/h · 62 Pa · ECsimilar duty
LWBE(RT)280-NW-011,600 m³/hsimilar dutySee all Inline Duct Fans · select by duty point