
Need a non-standard size or another format? Ask an engineer or search the download center.
Ø120 mm | AC | Max airflow 1,780 m³/h | Max static pressure 140 Pa | 71 dB(A)
CAD models (STEP / DWG) are released on request — see “Engineering files” below. Another format or a non-standard variant? Ask an engineer · download center
Proven in: Air curtain OEM programme · Trench convector & heating terminals · Consumer air cooler & fan ODM — all case studies on longwellfans.com
Typical applications: Air curtains · Air heaters · Dry-type transformer cooling · Electric heaters — all industries

Need a non-standard size or another format? Ask an engineer or search the download center.
LWCA-120780SN-06 is a LONGWELL AC Cross Flow Fan from the AC Cross Flow Fans range, impeller Ø120 mm, rated 230 V AC, maximum airflow 1,780 m³/h, maximum static pressure 140 Pa, noise 71 dB(A), input power 150 W. The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.
| Model | LWCA-120780SN-06 |
|---|---|
| Series | LWCA12078 |
| Motor type | AC |
| Phase | 1-phase |
| Inlet | Single inlet |
| Rated voltage | 230 V |
| Frequency | 50 Hz |
| Input power | 150 W |
| Speed | 1,350 rpm |
| Max. airflow | 1,780 m³/h |
| Max. static pressure | 140 Pa |
| Noise | 71 dB(A) |
| Ambient temperature | -25 ~ 60 °C |
| Impeller diameter | Ø120 mm |
| Outlet length | 780mm |
| Impeller material | Aluminum alloy |
| Insulation class | B/F/H |
| Bearing | Maintenance-free ball bearings |
| Duty | S1 |
Series LWCA12078: 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.
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 | |
|---|---|---|---|---|---|---|---|
| LWCA-120780SN-06 this model | 1,780 m³/h | 140 Pa | 1,350 rpm | 150 W | 71 dB(A) | 230 V | |
| LWCA-120380SN-06 | 1,000 m³/h | 68 Pa | 1,350 rpm | 109 W | 63 dB(A) | 230 V | View |
| LWCA-120560SN-06 | 1,380 m³/h | 100 Pa | 1,350 rpm | 120 W | 65 dB(A) | 230 V | View |
| LWCA-120680SN-06 | 1,560 m³/h | 122 Pa | 1,350 rpm | 135 W | 67 dB(A) | 230 V | View |
| LWCA-120900SN-06 | 2,000 m³/h | 161 Pa | 1,350 rpm | 170 W | 72 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.
LWCD-110820MN-06Ø110 mm · 1,845 m³/h · 320 Pa · DCadjacent size
LWCA-110720SN-06Ø110 mm · 1,550 m³/h · 224 Pa · ACadjacent size
LWCA-110620SN-06Ø110 mm · 1,350 m³/h · 193 Pa · ACadjacent size
LWCA-110520SN-06Ø110 mm · 1,200 m³/h · 162 Pa · ACadjacent size
LWCA-110380SN-06Ø110 mm · 900 m³/h · 128 Pa · ACadjacent size
LWCD-110620MN-06Ø110 mm · 1,437 m³/h · 244 Pa · DCadjacent size
LWDE-300 (12")U-MWN-03Ø300 mm · 1,763 m³/h · ECsimilar duty
LWDE-300 (12")U-MWN-01Ø300 mm · 1,763 m³/h · ECsimilar duty
LWFA4E225-138NS-02Ø225 mm · 1,761 m³/h · 288.4 Pa · ACsimilar duty
LWCA-150500SN-06Ø150 mm · 1,800 m³/h · 70 Pa · ACsimilar duty
LWBA(RT)320-NW-081,800 m³/hsimilar duty
LWAA4D295S-5PNW-03Ø295 mm · 1,803 m³/h · ACsimilar dutySee all AC Cross Flow Fans · select by duty point