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.
- ImpellerØ500 mm19.7 in
- Max airflow5,356 m³/h3,152 CFM
- Max static pressure361 Pa1.45 in. wg
- Voltage380 V
- Speed950 rpm
- Input power450 W
- Noise63 dB(A)
LWBA6D500-138NT-03 AC Backward Curved Centrifugal Fan Ø500 mm
Ø500 mm | AC | Max airflow 5,356 m³/h | Max static pressure 361 Pa | 63 dB(A)
- Factory direct
- OEM / ODM
- Samples in 1–3 days
- Production 15–30 days
- 18-month warranty
- CE · RoHS · ETL on request
Downloads for LWBA6D500-138NT-03
PDFDatasheet · 1.9 MBNeed a non-standard size or another format? Ask an engineer or search the download center.
LWBA6D500-138NT-03 is a LONGWELL AC Backward Curved Centrifugal Fan from the Backward Curved Centrifugal Fans range, impeller Ø500 mm, rated 380 V AC, maximum airflow 5,356 m³/h, maximum static pressure 361 Pa, noise 63 dB(A), input power 450 W. The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.
Technical data
| Model | LWBA6D500-138NT-03 |
|---|---|
| Series | LWBA6D500 |
| Motor type | AC |
| Phase | 3-phase |
| Rated voltage | 380 V |
| Frequency | 50 Hz |
| Current | 1.25 A |
| Input power | 450 W |
| Speed | 950 rpm |
| Max. airflow | 5,356 m³/h |
| Max. static pressure | 361 Pa |
| Noise | 63 dB(A) |
| Ambient temperature | -40 ~ 65 °C |
| Impeller diameter | Ø500 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 LWBA6D500: 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 (Ø500 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 | |
|---|---|---|---|---|---|---|---|
| LWBA6D500-138NT-03 this model | 5,356 m³/h | 361 Pa | 950 rpm | 450 W | 63 dB(A) | 380 V | |
| LWBA6D500-138NT-04 | 5,817 m³/h | 412 Pa | 1,050 rpm | 550 W | 65 dB(A) | 380 V | View |
| LWBA4D500-188NT-01 | 8,034 m³/h | 618 Pa | 1,350 rpm | 1,000 W | 79 dB(A) | 380 V | View |
| LWFA6D500-188NT-01 | 9,064 m³/h | 916.7 Pa | 900 rpm | 4,400 W | 75 dB(A) | 380 V | View |
| LWBA4D500-188NT-05 | 9,377 m³/h | 872 Pa | 1,350 rpm | 1,300 W | 81.9 dB(A) | 380 V | View |
| LWBA4D500-188NT-02 | 9,785 m³/h | 773 Pa | 1,400 rpm | 1,500 W | 80 dB(A) | 380 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 LWBA6D500 seriesSame impeller, different speed grade or wiring
Adjacent sizesOne size up when airflow is short, one size down when it is too much
LWFA6D450-188NT-01Ø450 mm · 7,725 m³/h · 638.6 Pa · ACadjacent size
LWBE3G450-188NT-21Ø450 mm · 12,647 m³/h · 2,342 Pa · ECadjacent size
LWBE3G450-188NT-17Ø450 mm · 8,661 m³/h · 2,114 Pa · ECadjacent size
LWBE3G450-188NT-22Ø450 mm · 10,752 m³/h · 1,669 Pa · ECadjacent size
LWBE3G450-188NT-16Ø450 mm · 8,019 m³/h · 1,802 Pa · ECadjacent size
LWBE3G450-188NT-14Ø450 mm · 8,985 m³/h · 840 Pa · ECadjacent sizeAlternatives at a similar dutySimilar airflow, different construction or motor platform
LWBE3G355-138PT-20Ø355 mm · 5,356 m³/h · 639 Pa · ECsimilar duty
LWBE3G355-138NT-17Ø355 mm · 5,356 m³/h · 639 Pa · ECsimilar duty
LWBE3G450-138PT-12Ø450 mm · 5,329 m³/h · 452 Pa · ECsimilar duty
LWBE3G450-138NT-11Ø450 mm · 5,329 m³/h · 452 Pa · ECsimilar duty
LWMFAF400-02Ø400 mm · 5,400 m³/h · 1,700 Pa · ACsimilar duty
LWAA4E420S-5MEB-01Ø420 mm · 5,459 m³/h · ACsimilar dutySee all Backward Curved Centrifugal Fans · select by duty point