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.
- ImpellerØ315 mm12.4 in
- Max airflow2,500 m³/h1,471 CFM
- Max static pressure450 Pa1.81 in. wg
- Voltage230 V
- Speed2,500 rpm
- Input power320 W
- Noise55 dB(A)
LWDA-315(12.6”)S-PWN-05 AC Plastic Inline Duct Fan Ø315 mm
Ø315 mm | AC | Max airflow 2,500 m³/h | Max static pressure 450 Pa | 55 dB(A)
- Factory direct
- OEM / ODM
- Samples in 1–3 days
- Production 15–30 days
- 18-month warranty
- CE · ETL · RoHS


Downloads for LWDA-315(12.6'')S-PWN-05
PDFDatasheet · 574 KBNeed a non-standard size or another format? Ask an engineer or search the download center.
LWDA-315(12.6'')S-PWN-05 is a LONGWELL AC Plastic Inline Duct Fan from the Plastic Inline Duct Fans range, impeller Ø315 mm, rated 230 V AC, maximum airflow 2,500 m³/h, maximum static pressure 450 Pa, noise 55 dB(A), input power 320 W. The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.
Technical data
| Model | LWDA-315(12.6'')S-PWN-05 |
|---|---|
| Series | LWDA315 |
| Motor type | AC |
| Phase | 1-phase |
| Rated voltage | 230 V |
| Frequency | 50 Hz |
| Input power | 320 W |
| Speed | 2,500 rpm |
| Max. airflow | 2,500 m³/h |
| Max. static pressure | 450 Pa |
| Noise | 55 dB(A) |
| Storage temperature | -25 ~ 60℃ |
| Humidity | 15 ~ 85% RH |
| Altitude | < 1000m |
| Impeller diameter | Ø315 mm |
| Inlet diameter | 315mm |
| Balance grade | G6.3 |
| Vibration standard | JB/T 8689 |
| Service life | 50,000Hours(L10), At 25 °Croom, humidity 15%~65%RH |
Typical applications
- Residential and commercial fresh-air systems
- Kitchen and bathroom exhaust
- Local pressurisation and booster duty
- Hotel and office ventilation
Series LWDA315: 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 (Ø315 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 | |
|---|---|---|---|---|---|---|---|
| LWDA-315(12.6'')S-PWN-05 this model | 2,500 m³/h | 450 Pa | 2,500 rpm | 320 W | 55 dB(A) | 230 V | |
| LWDA-315S-MBN-02 | 1,680 m³/h | 593 Pa | 2,520 rpm | 220 W | 80 dB(A) | 230 V | View |
| LWBA4E315-102NS-19 | 1,859 m³/h | 294 Pa | 1,390 rpm | 116 W | 67.4 dB(A) | 230 V | View |
| LWBA4E315-102NS-18 | 2,079 m³/h | 399 Pa | 1,550 rpm | 153 W | 69.6 dB(A) | 230 V | View |
| LWEA315S(T)M-157E | 2,273 m³/h | 74 Pa | 1,450 rpm | 250 W | — | 220 V | View |
| LWBA4D315-138NT-15 | 2,318 m³/h | 371 Pa | 1,450 rpm | 220 W | 64 dB(A) | 380 V | View |
| LWBA4D315-138NT-16 | 2,781 m³/h | 515 Pa | 1,650 rpm | 300 W | 68 dB(A) | 380 V | View |
| LWBA4E315-138NS-14 | 2,781 m³/h | 515 Pa | 1,650 rpm | 300 W | 68 dB(A) | 230 V | View |
| LWFA6D315-138NT-03 | 2,987 m³/h | 249.26 Pa | 940 rpm | 780 W | 68 dB(A) | 380 V | View |
| LWMFAF315-01 | 3,300 m³/h | 1,050 Pa | — | — | 87 dB(A) | 380 V | View |
| LWFA6E315-138NS-04 | 3,605 m³/h | 249.26 Pa | 870 rpm | 720 W | 68 dB(A) | 220 V | View |
| LWBA2D315-188NT-17 | 4,120 m³/h | 1,082 Pa | 2,650 rpm | 1,300 W | 85 dB(A) | 380 V | View |
| LWFA4D315-188NT-01 | 4,328 m³/h | 576.8 Pa | 1,360 rpm | 2,200 W | 80 dB(A) | 380 V | View |
| LWFA4E315-188NS-02 | 4,429 m³/h | 618 Pa | 1,360 rpm | 2,300 W | 80 dB(A) | 220 V | View |
| LWEA315S(T)M-158E | 4,545 m³/h | 373 Pa | 2,900 rpm | 370 W | — | 220 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 LWDA315 seriesSame impeller, different speed grade or wiring
Adjacent sizesOne size up when airflow is short, one size down when it is too much
LWDE-300 (12")U-MWN-01Ø300 mm · 1,763 m³/h · ECadjacent size
LWDE-300 (12")S-MWN-04Ø300 mm · 3,500 m³/h · ECadjacent size
LWDA-300 (12")U-MWN-03Ø300 mm · 1,900 m³/h · ACadjacent size
LWDA-300 (12")S-MWN-04Ø300 mm · 3,150 m³/h · ACadjacent size
LWDA-300 (12")U-MWN-01Ø300 mm · 1,900 m³/h · ACadjacent size
LWDA-300 (12")S-MWN-02Ø300 mm · 3,150 m³/h · ACadjacent sizeAlternatives at a similar dutySimilar airflow, different construction or motor platform
LWCA-150700SN-06Ø150 mm · 2,500 m³/h · 85 Pa · ACsimilar duty
LWCD-150700MN-06Ø150 mm · 2,500 m³/h · 83 Pa · DCsimilar duty
LWDA-400 (16")U-MWN-03Ø400 mm · 2,500 m³/h · ACsimilar duty
LWDA-400 (16")U-MWN-01Ø400 mm · 2,500 m³/h · ACsimilar duty
LWFA-E-250-01Ø250 mm · 2,500 m³/h · 380 Pa · ACsimilar duty
LW-G200T2,500 m³/hsimilar dutySee all Inline Duct Fans · select by duty point





