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 mm5.5 in
- Max airflow505 m³/h297 CFM
- Max static pressure881 Pa3.54 in. wg
- Voltage230 V
- Speed1,900 rpm
- Input power85 W
- Noise61 dB(A)
LWFE3G140-072SS-02 EC Single Inlet Forward Centrifugal Blower Ø140 mm
Ø140 mm | EC | Max airflow 505 m³/h | Max static pressure 881 Pa | 61 dB(A)
- Factory direct
- OEM / ODM
- Samples in 1–3 days
- Production 15–30 days
- 18-month warranty
- CE · ETL · RoHS
Engineering files (on request)
CAD files exist for this model and can be released for assembly checks in SolidWorks / CATIA / Creo / Inventor.
CAD models contain the blade geometry and are not downloadable. Tell us the project; an engineer sends the file after a short check, normally within 1 business day.
LWFE3G140-072SS-02 — construction, airflow path and running condition.
LWFE3G140-072SS-02 EC Single Inlet Forward Centrifugal Blower | Product Overview · open in video library
Need a non-standard size or another format? Ask an engineer or search the download center.
LWFE3G140-072SS-02 is a LONGWELL EC Single Inlet Forward Centrifugal Blower from the Single Inlet Forward Curved Blowers range, impeller Ø140 mm, rated 230 V EC, maximum airflow 505 m³/h, maximum static pressure 881 Pa, noise 61 dB(A), input power 85 W. The EC motor integrates the drive electronics: stepless speed control by 0–10 V or PWM signal, speed feedback and high efficiency at part load.
Technical data
| Model | LWFE3G140-072SS-02 |
|---|---|
| Series | LWFE3G140 |
| Motor type | EC |
| Phase | 1-phase |
| Rated voltage | 230 V |
| Frequency | 50 Hz |
| Current | 0.62 A |
| Input power | 85 W |
| Speed | 1,900 rpm |
| Max. airflow | 505 m³/h |
| Max. static pressure | 881 Pa |
| Noise | 61 dB(A) |
| Ambient temperature | -30 ~ 60 °C |
| Impeller diameter | Ø140 mm |
| Rotor diameter | 72 |
| 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 LWFE3G140: 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 · EC)
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 | |
|---|---|---|---|---|---|---|---|
| LWFE3G140-072SS-02 this model | 505 m³/h | 881 Pa | 1,900 rpm | 85 W | 61 dB(A) | 230 V | |
| LWFE3G140-072SS-01 | 453 m³/h | 783 Pa | 1,860 rpm | 85 W | 72 dB(A) | 230 V | View |
| LWFE3G140-072NS-01 | 484 m³/h | 216 Pa | 1,910 rpm | 70 W | 72 dB(A) | 230 V | View |
| LWFE3G140-072NS-02 | 494 m³/h | 845 Pa | 2,060 rpm | 115 W | 74 dB(A) | 230 V | View |
| LWFE3G140-072SS-04 | 597 m³/h | 979 Pa | 2,130 rpm | 110 W | 65 dB(A) | 230 V | View |
| LWFE3G140-072SS-03 | 597 m³/h | 979 Pa | 2,030 rpm | 110 W | 65 dB(A) | 230 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 LWFE3G140 seriesSame impeller, different speed grade or wiring
LWFE3G140-072SS-01Ø140 mm · 453 m³/h · 783 Pa · ECsame series
LWFE3G140-072SS-03Ø140 mm · 597 m³/h · 979 Pa · ECsame series
LWFE3G140-072SS-04Ø140 mm · 597 m³/h · 979 Pa · ECsame series
LWFE3G140-072NS-01Ø140 mm · 484 m³/h · 216 Pa · ECsame series
LWFE3G140-072NS-02Ø140 mm · 494 m³/h · 845 Pa · ECsame 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
LWFA2E133-092DS-02Ø133 mm · 505 m³/h · 402 Pa · ACsimilar duty
LWBA2E175-092NS-04Ø175 mm · 505 m³/h · 386 Pa · ACsimilar duty
LWBD3G190-092NM-06Ø190 mm · 505 m³/h · 412 Pa · DCsimilar duty
LWBD3G190-092NH-07Ø190 mm · 505 m³/h · 412 Pa · DCsimilar duty
LWBA2E175-072NS-02Ø175 mm · 504 m³/h · 294 Pa · ACsimilar duty
LWAD17238MX-01172 mm · 508.8 m³/h · 186 Pa · DCsimilar dutySee all Centrifugal Fans · select by duty point