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 airflow1,957 m³/h1,152 CFM
- Max static pressure309 Pa1.24 in. wg
- Voltage230 V
- Speed1,400 rpm
- Input power135 W
- Noise63 dB(A)
LWBA4E315-102NS-05 AC Backward Curved Centrifugal Fan Ø315 mm
Ø315 mm | AC | Max airflow 1,957 m³/h | Max static pressure 309 Pa | 63 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.
Downloads for LWBA4E315-102NS-05
PDFDatasheet · 621 KBNeed a non-standard size or another format? Ask an engineer or search the download center.
LWBA4E315-102NS-05 is a LONGWELL AC Backward Curved Centrifugal Fan from the Backward Curved Centrifugal Fans range, impeller Ø315 mm, rated 230 V AC, maximum airflow 1,957 m³/h, maximum static pressure 309 Pa, noise 63 dB(A), input power 135 W. The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.
Technical data
| Model | LWBA4E315-102NS-05 |
|---|---|
| Series | LWBA4E315 |
| Motor type | AC |
| Phase | 1-phase |
| Rated voltage | 230 V |
| Frequency | 50 Hz |
| Current | 0.6 A |
| Input power | 135 W |
| Speed | 1,400 rpm |
| Max. airflow | 1,957 m³/h |
| Max. static pressure | 309 Pa |
| Noise | 63 dB(A) |
| Ambient temperature | -40 ~ 60 °C |
| Storage temperature | -40 ~ 80℃ |
| Humidity | 0 ~ 85 % RH |
| Altitude | < 1000m |
| Impeller diameter | Ø315 mm |
| Rotor diameter | 102 |
| Impeller material | Aluminum Alloy ( Impeller ) |
| Protection class | IP44 |
| Insulation class | F |
| Bearing | Maintenance-free ball bearings |
| Duty | S1 |
| Balance grade | G6.3 |
| Vibration standard | JB/T 8689 |
| Service life | 30,000Hours(L10), At 40 °Croom, humidity 15%~65%RH |
| Rotation | Clockwise,seen on rotor |
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 LWBA4E315: 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 | |
|---|---|---|---|---|---|---|---|
| LWBA4E315-102NS-05 this model | 1,957 m³/h | 309 Pa | 1,400 rpm | 135 W | 63 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 |
| LWDA-315(12.6'')S-PWN-05 | 2,500 m³/h | 450 Pa | 2,500 rpm | 320 W | 55 dB(A) | 230 V | View |
| LWBA4D315-138NT-16 | 2,781 m³/h | 515 Pa | 1,650 rpm | 300 W | 68 dB(A) | 380 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.
Related products
Other models in the LWBA4E315 seriesSame impeller, different speed grade or wiring
LWBA4E315-102NS-01Ø315 mm · 1,391 m³/h · 309 Pa · ACsame series
LWBA4E315-102NS-02Ø315 mm · 1,571 m³/h · 412 Pa · ACsame series
LWBA4E315-102NS-03Ø315 mm · 1,700 m³/h · 309 Pa · ACsame series
LWBA4E315-102NS-04Ø315 mm · 1,957 m³/h · 412 Pa · ACsame series
LWBA4E315-102NS-06Ø315 mm · 2,163 m³/h · 412 Pa · ACsame series
LWBA4E315-102NS-11Ø315 mm · 1,957 m³/h · 319 Pa · ACsame seriesAdjacent sizesOne size up when airflow is short, one size down when it is too much
LWBE3G310-072NS-21Ø310 mm · 2,266 m³/h · 618 Pa · ECadjacent size
LWBE3G310-072NS-07Ø310 mm · 2,266 m³/h · 700.4 Pa · ECadjacent size
LWBE3G310-072NU-27Ø310 mm · 2,266 m³/h · 700.4 Pa · ECadjacent size
LWBE3G310-102NS-19Ø310 mm · 2,936 m³/h · 700 Pa · ECadjacent size
LWBE3G310-092NS-22Ø310 mm · 2,678 m³/h · 607.7 Pa · ECadjacent size
LWBE3G310-092NU-28Ø310 mm · 2,678 m³/h · 607.7 Pa · ECadjacent sizeAlternatives at a similar dutySimilar airflow, different construction or motor platform
See all Backward Curved Centrifugal Fans · select by duty point