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.
- Frame size50 mm2.0 in
- Max airflow4.8 m³/h3 CFM
- Max static pressure75 Pa0.30 in. wg
- Voltage24 V
- Speed4,000 rpm
- Input power2.88 W
- Noise34.9 dB(A)
LWFD5015ML-04 DC Centrifugal Blower 50 mm
50 mm | DC | Max airflow 4.8 m³/h | Max static pressure 75 Pa | 34.9 dB(A)
- Factory direct
- OEM / ODM
- Samples in 1–3 days
- Production 15–30 days
- 18-month warranty
- CE · ETL · RoHS


Need a non-standard size or another format? Ask an engineer or search the download center.
LWFD5015ML-04 is a LONGWELL DC Centrifugal Blower from the DC Centrifugal Blowers range, frame size 50 mm, rated 24 V DC, maximum airflow 4.8 m³/h, maximum static pressure 75 Pa, noise 34.9 dB(A), input power 2.88 W. The low-voltage brushless DC motor suits battery-powered equipment and electronics cooling with speed control on demand.
Technical data
| Model | LWFD5015ML-04 |
|---|---|
| Series | LWFD5015 |
| Motor type | DC |
| Rated voltage | 24 V |
| Current | 0.12 A |
| Input power | 2.88 W |
| Speed | 4,000 rpm |
| Max. airflow | 4.8 m³/h |
| Max. static pressure | 75 Pa |
| Noise | 34.9 dB(A) |
| Frame size | 50 mm |
| Dimensions | 50x15mm |
| Impeller material | Plastic(UL94-VO) |
Typical applications
- Power supplies and inverters
- Telecom and server cabinets
- Battery packs and EV chargers
- Medical and laboratory equipment
Series LWFD5015: 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 frame size (50 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 | |
|---|---|---|---|---|---|---|---|
| LWFD5015ML-04 this model | 4.8 m³/h | 75 Pa | 4,000 rpm | 2.88 W | 34.9 dB(A) | 24 V | |
| LWFD5025MD-05 | 7.2 m³/h | 56 Pa | 3,500 rpm | 1.44 W | 28 dB(A) | 24 V | View |
| LWFD5025LD-05 | 7.2 m³/h | 56 Pa | 3,500 rpm | 1.2 W | 28 dB(A) | 12 V | View |
| LWFD5025KD-05 | 7.2 m³/h | 56 Pa | 3,500 rpm | 1 W | 28 dB(A) | 5 V | View |
| LWFD5025ML-04 | 8.4 m³/h | 73 Pa | 4,000 rpm | 1.92 W | 30.9 dB(A) | 24 V | View |
| LWFD5025LL-04 | 8.4 m³/h | 73 Pa | 4,000 rpm | 1.44 W | 30.9 dB(A) | 12 V | View |
| LWFD5025KL-04 | 8.4 m³/h | 73 Pa | 4,000 rpm | 1.25 W | 30.9 dB(A) | 5 V | View |
| LWFD5025MM-03 | 9 m³/h | 93 Pa | 4,500 rpm | 2.4 W | 33.4 dB(A) | 24 V | View |
| LWFD5025LM-03 | 9 m³/h | 93 Pa | 4,500 rpm | 1.8 W | 33.4 dB(A) | 12 V | View |
| LWFD5025KM-03 | 9 m³/h | 93 Pa | 4,500 rpm | 1.5 W | 33.4 dB(A) | 5 V | View |
| LWFD5025MH-02 | 10.2 m³/h | 114 Pa | 5,000 rpm | 2.88 W | 35.7 dB(A) | 24 V | View |
| LWFD5025LH-02 | 10.2 m³/h | 114 Pa | 5,000 rpm | 2.4 W | 35.7 dB(A) | 12 V | View |
| LWFD5025KH-02 | 10.2 m³/h | 114 Pa | 5,000 rpm | 2 W | 35.7 dB(A) | 5 V | View |
| LWFD5025MX-01 | 10.8 m³/h | 128 Pa | 5,300 rpm | 4.32 W | 37 dB(A) | 24 V | View |
| LWFD5025LX-01 | 10.8 m³/h | 128 Pa | 5,300 rpm | 3 W | 37 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.
Other models in the LWFD5015 seriesSame impeller, different speed grade or wiring
LWFD5015KX-0150 mm · 8.4 m³/h · 231 Pa · DCsame series
LWFD5015KH-0250 mm · 7.2 m³/h · 170 Pa · DCsame series
LWFD5015KM-0350 mm · 6 m³/h · 118 Pa · DCsame series
LWFD5015KL-0450 mm · 4.8 m³/h · 75 Pa · DCsame series
LWFD5015KD-0550 mm · 3.6 m³/h · 42 Pa · DCsame series
LWFD5015LX-0150 mm · 8.4 m³/h · 231 Pa · DCsame seriesAdjacent sizesOne size up when airflow is short, one size down when it is too much
LWT-2250-0249 mm · 4,800 m³/h · 2,200 Pa · ACadjacent size
LWT-2250-0149 mm · 4,800 m³/h · 2,200 Pa · ACadjacent size
LWT-1125-0249 mm · 4,100 m³/h · 1,700 Pa · ACadjacent size
LWT-1500-0249 mm · 4,300 m³/h · 1,900 Pa · ACadjacent size
LWT-1500-0149 mm · 4,300 m³/h · 1,900 Pa · ACadjacent size
LWT-1125-0149 mm · 4,100 m³/h · 1,700 Pa · ACadjacent sizeAlternatives at a similar dutySimilar airflow, different construction or motor platform
See all Cooling Fans & Blowers · select by duty point













