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 mm
- Max airflow3,605 m³/h
- Max static pressure927 Pa
- Voltage380 V
- Speed2,750 rpm
- Input power800 W
- Noise84 dB(A)
LWBA2D315-138NT-12 AC Backward Curved Centrifugal Fan Ø315 mm
Ø315 mm | AC | Max airflow 3,605 m³/h | Max static pressure 927 Pa | 84 dB(A)
- Factory direct
- OEM / ODM
- Samples in 1–3 days
- Production 15–30 days
- 18-month warranty
- CE · ETL · RoHS
Downloads for LWBA2D315-138NT-12
PDFDatasheet · 2 MBNeed a non-standard size or another format? Ask an engineer or search the download center.
LWBA2D315-138NT-12 is a LONGWELL AC Backward Curved Centrifugal Fan from the Backward Curved Centrifugal Fans range, impeller Ø315 mm, rated 380 V AC, maximum airflow 3,605 m³/h, maximum static pressure 927 Pa, noise 84 dB(A), input power 800 W. The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.
Technical data
| Model | LWBA2D315-138NT-12 |
|---|---|
| Series | LWBA2D315 |
| Motor type | AC |
| Phase | 3-phase |
| Rated voltage | 380 V |
| Frequency | 50 Hz |
| Current | 1.5 A |
| Input power | 800 W |
| Speed | 2,750 rpm |
| Max. airflow | 3,605 m³/h |
| Max. static pressure | 927 Pa |
| Noise | 84 dB(A) |
| Ambient temperature | -40 ~ 65 °C |
| Impeller diameter | Ø315 mm |
| Rotor diameter | 138 |
| Impeller material | Aluminum Alloy |
| Protection class | IP54 |
| Insulation class | F |
| Bearing | Maintenance-free ball bearings |
| Duty | S1 |
| 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 LWBA2D315: 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 | |
|---|---|---|---|---|---|---|---|
| LWBA2D315-138NT-12 this model | 3,605 m³/h | 927 Pa | 2,750 rpm | 800 W | 84 dB(A) | 380 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 LWBA2D315 seriesSame impeller, different speed grade or wiring
Adjacent 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
LWFE3G225-138DS-01Ø225 mm · 3,605 m³/h · 577 Pa · ECsimilar duty
LWFA6E315-138NS-04Ø315 mm · 3,605 m³/h · 249.26 Pa · ACsimilar duty
LWAE3G350SS-5PEW-09Ø350 mm · 3,554 m³/h · 144 Pa · ECsimilar duty
LWBE3G355-102NS-20Ø355 mm · 3,554 m³/h · 618 Pa · ECsimilar duty
LWBE3G400-102NS-16Ø400 mm · 3,554 m³/h · 546 Pa · ECsimilar duty
LWBE3G355-102PS-16Ø355 mm · 3,554 m³/h · 618 Pa · ECsimilar dutySee all Backward Curved Centrifugal Fans · select by duty point