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.
- ImpellerØ140 mm
- Max airflow464 m³/h
- Max static pressure453 Pa
- Voltage48 V
- Speed1,800 rpm
- Input power80 W
- Noise65 dB(A)
LWFD3G140-072SH-02 DC Single Inlet Forward Centrifugal Blower Ø140 mm
Ø140 mm | DC | Max airflow 464 m³/h | Max static pressure 453 Pa | 65 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.
LWFD3G140-072SH-02 is a LONGWELL DC Single Inlet Forward Centrifugal Blower from the Single Inlet Forward Curved Blowers range, impeller Ø140 mm, rated 48 V DC, maximum airflow 464 m³/h, maximum static pressure 453 Pa, noise 65 dB(A), input power 80 W. The low-voltage brushless DC motor suits battery-powered equipment and electronics cooling with speed control on demand.
Technical data
| Model | LWFD3G140-072SH-02 |
|---|---|
| Series | LWFD3G140 |
| Motor type | DC |
| Rated voltage | 48 V |
| Current | 1.67 A |
| Input power | 80 W |
| Speed | 1,800 rpm |
| Max. airflow | 464 m³/h |
| Max. static pressure | 453 Pa |
| Noise | 65 dB(A) |
| Ambient temperature | -30 ~ 60 °C |
| Impeller diameter | Ø140 mm |
| Rotor diameter | 72 |
| Impeller material | Plastic PA66 |
| Insulation class | B |
| Bearing | Maintenance-free ball bearings |
| Duty | S1 |
Typical applications
- Air handling units (AHU) and rooftop units (RTU)
- Data-center CRAH / CRAC units and fan walls
- Dust extraction and process ventilation
- Fan filter units and air purifiers
Series LWFD3G140: 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 (Ø140 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 | |
|---|---|---|---|---|---|---|---|
| LWFD3G140-072SH-02 this model | 464 m³/h | 453 Pa | 1,800 rpm | 80 W | 65 dB(A) | 48 V | |
| LWFD3G140-072SZ-01 | 464 m³/h | 453 Pa | 1,800 rpm | 80 W | 71 dB(A) | 310 V | View |
| LWFD3G140-072SZ-02 | 464 m³/h | 453 Pa | 1,800 rpm | 80 W | 71 dB(A) | 310 V | View |
| LWFD3G140-072SM-02 | 464 m³/h | 453 Pa | 1,800 rpm | 80 W | 65 dB(A) | 24 V | View |
| LWFD3G140-072SH-01 | 464 m³/h | 453 Pa | 1,800 rpm | 80 W | 65 dB(A) | 48 V | View |
| LWFD3G140-072SM-01 | 464 m³/h | 453 Pa | 1,800 rpm | 80 W | 65 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 LWFD3G140 seriesSame impeller, different speed grade or wiring
LWFD3G140-072SM-01Ø140 mm · 464 m³/h · 453 Pa · DCsame series
LWFD3G140-072SH-01Ø140 mm · 464 m³/h · 453 Pa · DCsame series
LWFD3G140-072SM-02Ø140 mm · 464 m³/h · 453 Pa · DCsame series
LWFD3G140-072SZ-01Ø140 mm · 464 m³/h · 453 Pa · DCsame series
LWFD3G140-072SZ-02Ø140 mm · 464 m³/h · 453 Pa · DCsame seriesAdjacent sizesOne size up when airflow is short, one size down when it is too much
LWBE3G450-188NT-14Ø138 mm · 8,985 m³/h · 840 Pa · ECadjacent size
LWFA2E146-092DS-07Ø146 mm · 479 m³/h · 391 Pa · ACadjacent size
LWFA2E146-092DS-01Ø146 mm · 742 m³/h · 453 Pa · ACadjacent size
LWFA2E146-092DS-05Ø146 mm · 927 m³/h · 515 Pa · ACadjacent size
LWFA2E146-092DS-04Ø146 mm · 948 m³/h · 597 Pa · ACadjacent size
LWFA2E146-092DS-03Ø146 mm · 1,009 m³/h · 494 Pa · ACadjacent sizeAlternatives at a similar dutySimilar airflow, different construction or motor platform
See all Centrifugal Fans · select by duty point