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.
- ImpellerØ100 mm3.9 in
- Max airflow319 m³/h188 CFM
- Max static pressure185 Pa0.74 in. wg
- Voltage230 V
- Speed2,550 rpm
- Input power40 W
- Noise25 dB(A)
LWDA-100S-PWN-15 AC Ultra Silent Plastic Duct Fan Ø100 mm
Ø100 mm | AC | Max airflow 319 m³/h | Max static pressure 185 Pa | 25 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-100S-PWN-15 is a LONGWELL AC Ultra Silent Plastic Duct Fan from the Ultra Silent Duct Fans range, impeller Ø100 mm, rated 230 V AC, maximum airflow 319 m³/h, maximum static pressure 185 Pa, noise 25 dB(A), input power 40 W. The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.
Technical data
| Model | LWDA-100S-PWN-15 |
|---|---|
| Series | LWDA100 |
| Motor type | AC |
| Phase | 1-phase |
| Rated voltage | 230 V |
| Frequency | 50 Hz |
| Input power | 40 W |
| Speed | 2,550 rpm |
| Max. airflow | 319 m³/h |
| Max. static pressure | 185 Pa |
| Noise | 25 dB(A) |
| Storage temperature | -25 ~ 60℃ |
| Humidity | 15 ~ 85% RH |
| Altitude | < 1000m |
| Impeller diameter | Ø100 mm |
| Inlet diameter | 100mm |
| Balance grade | G6.3 |
| Vibration standard | JB/T 8689 |
| Service life | 50,000Hours(L10), At 25 °Croom, humidity 15%~65%RH |
Typical applications
- Residential and commercial fresh-air systems
- Kitchen and bathroom exhaust
- Local pressurisation and booster duty
- Hotel and office ventilation
Series LWDA100: 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 (Ø100 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-100S-PWN-15 this model | 319 m³/h | 185 Pa | 2,550 rpm | 40 W | 25 dB(A) | 230 V | |
| LWDA-100(4")S-MWN-08 | 140 m³/h | 58 Pa | 2,800 rpm | 20 W | 48 dB(A) | 220 V | View |
| LWDA-100(4")U-PWN-17 | 205 m³/h | 135 Pa | 1,900 rpm | 34 W | 24 dB(A) | 115 V | View |
| LWDA-100(4")S-PWN-15 | 205 m³/h | 135 Pa | 1,900 rpm | 25 W | 24 dB(A) | 230 V | View |
| LWDA-100S-MBN-14 | 242 m³/h | 326 Pa | 2,450 rpm | 60 W | 59 dB(A) | 230 V | View |
| LWDA-100(4")U-PWN-16 | 325 m³/h | 163 Pa | 2,360 rpm | 34 W | 30 dB(A) | 115 V | View |
| LWDA-100(4")S-PWN-14 | 325 m³/h | 163 Pa | 2,360 rpm | 36 W | 30 dB(A) | 230 V | View |
| LWDA-100 (4")U-PWN-01 | 410 m³/h | see curve | 3,350 rpm | 41 W | 52 dB(A) | 110-120 V | View |
| LWDA-100 (4")U-MWN-03 | 410 m³/h | see curve | 3,350 rpm | 41 W | 51 dB(A) | 110-120 V | View |
| LWDA-100 (4")S-PWN-02 | 605 m³/h | 168 Pa | 2,900 rpm | 41 W | 51 dB(A) | 220-240 V | View |
| LWDA-100 (4")S-MWN-04 | 605 m³/h | see curve | 2,900 rpm | 41 W | 49 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 LWDA100 seriesSame impeller, different speed grade or wiring
LWDA-100S-MBN-14Ø100 mm · 242 m³/h · 326 Pa · ACsame series
LWDA-100 (4")U-MWN-03Ø100 mm · 410 m³/h · ACsame series
LWDA-100 (4")S-MWN-04Ø100 mm · 605 m³/h · ACsame series
LWDA-100 (4")U-PWN-01Ø100 mm · 410 m³/h · ACsame series
LWDA-100 (4")S-PWN-02Ø100 mm · 605 m³/h · 168 Pa · ACsame series
LWDA-100(4")S-PWN-14Ø100 mm · 325 m³/h · 163 Pa · ACsame seriesAdjacent sizesOne size up when airflow is short, one size down when it is too much
LWDE3G100-IS-01Ø98 mm · 385 m³/h · 269 Pa · ECadjacent size
LWDE3G100-IS-03Ø98 mm · 385 m³/h · 269 Pa · ECadjacent size
LWDD-125M-MBN-08Ø125 mm · 270 m³/h · 365 Pa · DCadjacent size
LWDA-125S-PWN-11Ø125 mm · 319 m³/h · 185 Pa · ACadjacent size
LWDA-125 (5")S-PWN-02Ø125 mm · 605 m³/h · 168 Pa · ACadjacent size
LWDA-125 (5")U-PWN-01Ø125 mm · 410 m³/h · ACadjacent sizeAlternatives at a similar dutySimilar airflow, different construction or motor platform
LWFA2E133-092SS-03Ø133 mm · 319 m³/h · 433 Pa · ACsimilar duty
LWFD3G133-072SM-01Ø133 mm · 319 m³/h · 258 Pa · DCsimilar duty
LWFD3G133-072SH-01Ø133 mm · 319 m³/h · 258 Pa · DCsimilar duty
LWFD3G120-072SZ-01Ø120 mm · 319 m³/h · 247 Pa · DCsimilar duty
LWFD3G120-072SZ-02Ø120 mm · 319 m³/h · 247 Pa · DCsimilar duty
LWFD3G133-072SZ-01Ø133 mm · 319 m³/h · 319 Pa · DCsimilar dutySee all Impeller Ø100–150 mm · select by duty point








