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 mm
- Max airflow241 m³/h
- Max static pressure365 Pa
- Voltage12 V
- Speed3,000 rpm
- Input power30 W
- Noise62 dB(A)
LWDD-100L-MBN-11 DC Metal Inline Duct Fan Ø100 mm
Ø100 mm | DC | Max airflow 241 m³/h | Max static pressure 365 Pa | 62 dB(A)
- Factory direct
- OEM / ODM
- Samples in 1–3 days
- Production 15–30 days
- 18-month warranty
- CE · ETL · RoHS


Downloads for LWDD-100L-MBN-11
PDFDatasheet · 596 KBNeed a non-standard size or another format? Ask an engineer or search the download center.
LWDD-100L-MBN-11 is a LONGWELL DC Metal Inline Duct Fan from the Metal Inline Duct Fans range, impeller Ø100 mm, rated 12 V DC, maximum airflow 241 m³/h, maximum static pressure 365 Pa, noise 62 dB(A), input power 30 W. The low-voltage brushless DC motor suits battery-powered equipment and electronics cooling with speed control on demand.
Technical data
| Model | LWDD-100L-MBN-11 |
|---|---|
| Series | LWDD100 |
| Motor type | DC |
| Rated voltage | 12 V |
| Current | 2.65 A |
| Input power | 30 W |
| Speed | 3,000 rpm |
| Max. airflow | 241 m³/h |
| Max. static pressure | 365 Pa |
| Noise | 62 dB(A) |
| Impeller diameter | Ø100 mm |
| Inlet diameter | 100mm |
| Impeller material | Plastic |
Typical applications
- Residential and commercial fresh-air systems
- Kitchen and bathroom exhaust
- Local pressurisation and booster duty
- Hotel and office ventilation
Series LWDD100: 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 · DC)
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 | |
|---|---|---|---|---|---|---|---|
| LWDD-100L-MBN-11 this model | 241 m³/h | 365 Pa | 3,000 rpm | 30 W | 62 dB(A) | 12 V | |
| LWDD-100H-MBN-13 | 241 m³/h | 365 Pa | 3,000 rpm | 30 W | 62 dB(A) | 48 V | View |
| LWDD-100M-MBN-12 | 241 m³/h | 365 Pa | 3,000 rpm | 30 W | 62 dB(A) | 24 V | View |
| LWCD-100380MN-06 | 800 m³/h | 106 Pa | 1,500 rpm | 26.5 W | 55 dB(A) | 24 V | View |
| LWCD-100520MN-06 | 1,100 m³/h | 145 Pa | 1,500 rpm | 60 W | 58 dB(A) | 24 V | View |
| LWCD-100620MN-06 | 1,300 m³/h | 173 Pa | 1,500 rpm | 75 W | 59 dB(A) | 24 V | View |
| LWCD-100720MN-06 | 1,500 m³/h | 197 Pa | 1,500 rpm | 115.2 W | 60 dB(A) | 24 V | View |
| LWCD-100820MN-06 | 1,700 m³/h | 229 Pa | 1,500 rpm | 120 W | 61 dB(A) | 24 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 LWDD100 seriesSame impeller, different speed grade or wiring
Adjacent 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
See all Impeller Ø100–150 mm · select by duty point









