Downloads for LWFA4E250-138NS-02
PDFDatasheetNeed a non-standard size or another format? Ask an engineer or search the download center.
- ImpellerØ250 mm
- Max airflow2,575 m³/h
- Max static pressure401.7 Pa
- Voltage220 V
- Speed1,330 rpm
- Input power900 W
- Noise72 dB(A)
LWFA4E250-138NS-02 AC Forward Curved Centrifugal Fan Ø250 mm
Ø250 mm | AC | Max airflow 2,575 m³/h | Max static pressure 401.7 Pa | 72 dB(A)
- Factory direct
- OEM / ODM
- Samples in 1–3 days
- Production 15–30 days
- 18-month warranty
- CE · ETL · RoHS
LWFA4E250-138NS-02 is a LONGWELL AC Forward Curved Centrifugal Fan from the Forward Curved Centrifugal Fans range, impeller Ø250 mm, rated 220 V AC, maximum airflow 2,575 m³/h, maximum static pressure 401.7 Pa, noise 72 dB(A), input power 900 W. The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.
Technical data
| Model | LWFA4E250-138NS-02 |
|---|---|
| Series | LWFA4E250 |
| Motor type | AC |
| Phase | 1-phase |
| Rated voltage | 220 V |
| Frequency | 50 Hz |
| Current | 4.1 A |
| Input power | 900 W |
| Speed | 1,330 rpm |
| Max. airflow | 2,575 m³/h |
| Max. static pressure | 401.7 Pa |
| Noise | 72 dB(A) |
| Ambient temperature | -30 ~ 60 °C |
| Impeller diameter | Ø250 mm |
| Rotor diameter | 138 |
| Insulation class | F |
| 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 LWFA4E250: 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 (Ø250 mm · AC)
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 | |
|---|---|---|---|---|---|---|---|
| LWFA4E250-138NS-02 this model | 2,575 m³/h | 401.7 Pa | 1,330 rpm | 900 W | 72 dB(A) | 220 V | |
| LWA-250(10")U(S)M-01 | 28 m³/h | see curve | 1,350 rpm | 80 W | — | 110-120 V | View |
| LWA-250(10")U(S)M-02 | 48 m³/h | see curve | 2,800 rpm | 230 W | — | 110-120 V | View |
| LWDA-250S-MBN-10 | 1,034 m³/h | 515 Pa | 2,615 rpm | 165 W | 71 dB(A) | 230 V | View |
| LWDA-250 (10")U-MWN-01 | 1,219 m³/h | see curve | 3,000 rpm | 228 W | 69 dB(A) | 110-120 V | View |
| LWDA-250 (10")U-MWN-03 | 1,219 m³/h | see curve | 3,000 rpm | 228 W | 62 dB(A) | 110-120 V | View |
| LWDA-250(8'')S-PWN-05 | 1,600 m³/h | 420 Pa | 2,500 rpm | 175 W | 50 dB(A) | 230 V | View |
| LWFA6E250-102NS-04 | 1,751 m³/h | 164.8 Pa | 900 rpm | 320 W | 62 dB(A) | 220 V | View |
| LWFA6D250-102NT-03 | 1,751 m³/h | 164.8 Pa | 910 rpm | 320 W | 62 dB(A) | 380 V | View |
| LWDA-250 (10")S-MWN-02 | 1,900 m³/h | see curve | 2,750 rpm | 162 W | 68 dB(A) | 220-240 V | View |
| LWDA-250 (10")S-MWN-04 | 1,900 m³/h | see curve | 2,750 rpm | 162 W | 60 dB(A) | 220-240 V | View |
| LWFA-E-250-02 | 2,100 m³/h | 215 Pa | — | — | 64 dB(A) | — | View |
| LWA-250(10")U(S)M-03 | 2,100 m³/h | 215 Pa | 2,800 rpm | 250 W | — | 110-120 V | View |
| LWDA-250(10")S-MWN-06 | 2,100 m³/h | 215 Pa | 2,800 rpm | 100 W | 65 dB(A) | 220 V | View |
| LWFA-E-250-01 | 2,500 m³/h | 380 Pa | — | — | 70 dB(A) | — | View |
Not sure which one? Send us the duty point (airflow / static pressure / noise limit) — use the selector or ask an engineer.
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