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.
- ImpellerØ125 mm4.9 in
- Max airflow270 m³/h159 CFM
- Max static pressure365 Pa1.47 in. wg
- Voltage24 V
- Speed3,000 rpm
- Input power32 W
- Noise62 dB(A)
LWDD-125M-MBN-08 DC Metal Inline Duct Fan Ø125 mm
Ø125 mm | DC | Max airflow 270 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 · RoHS · ETL on request
Downloads for LWDD-125M-MBN-08
PDFDatasheetNeed a non-standard size or another format? Ask an engineer or search the download center.
LWDD-125M-MBN-08 is a LONGWELL DC Metal Inline Duct Fan from the Metal Inline Duct Fans range, impeller Ø125 mm, rated 24 V DC, maximum airflow 270 m³/h, maximum static pressure 365 Pa, noise 62 dB(A), input power 32 W. The low-voltage brushless DC motor suits battery-powered equipment and electronics cooling with speed control on demand.
Technical data
| Model | LWDD-125M-MBN-08 |
|---|---|
| Series | LWDD125 |
| Motor type | DC |
| Rated voltage | 24 V |
| Current | 1.35 A |
| Input power | 32 W |
| Speed | 3,000 rpm |
| Max. airflow | 270 m³/h |
| Max. static pressure | 365 Pa |
| Noise | 62 dB(A) |
| Storage temperature | -25 ~ 70℃ |
| Humidity | 0 ~ 85% RH |
| Altitude | < 1000m |
| Impeller diameter | Ø125 mm |
| Inlet diameter | 125mm |
| Impeller material | PA6+GF ( Impeller ) |
| Bearing | Maintenance-free deep groove ball bearings |
| Balance grade | G6.3 |
| Vibration standard | JB/T 8689 |
| Service life | 25,000Hours(L10), At 40 °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 LWDD125: 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 (Ø125 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-125M-MBN-08 this model | 270 m³/h | 365 Pa | 3,000 rpm | 32 W | 62 dB(A) | 24 V | |
| LWDD-125H-MBN-09 | 270 m³/h | 365 Pa | 3,000 rpm | 32 W | 62 dB(A) | 48 V | View |
| LWDD-125L-MBN-07 | 270 m³/h | 365 Pa | 3,000 rpm | 32 W | 62 dB(A) | 12 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 LWDD125 seriesSame impeller, different speed grade or wiring
Adjacent sizesOne size up when airflow is short, one size down when it is too much
LWDE3G150-IS-03Ø147 mm · 705 m³/h · 465 Pa · ECadjacent size
LWDE3G150-IS-01Ø147 mm · 705 m³/h · 465 Pa · ECadjacent size
LWDA-100S-PWN-15Ø100 mm · 319 m³/h · 185 Pa · ACadjacent size
LWDA-150(6")U-PWN-13Ø150 mm · 674 m³/h · 355 Pa · ACadjacent sizeLWDA-150(6")U-PWN-14Ø150 mm · 535 m³/h · 302 Pa · ACadjacent size
LWDD-100M-MBN-12Ø100 mm · 241 m³/h · 365 Pa · DCadjacent sizeAlternatives at a similar dutySimilar airflow, different construction or motor platform
See all Impeller Ø100–150 mm · select by duty point