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 airflow9,377 m³/h5,519 CFM
- Max static pressure872 Pa3.50 in. wg
- Voltage380 V
- Speed1,350 rpm
- Input power1,300 W1.74 hp
- Noise81.9 dB(A)
LWBA4D500-188NT-05 AC Backward Curved Centrifugal Fan Ø500 mm
Ø500 mm | AC | Max airflow 9,377 m³/h | Max static pressure 872 Pa | 81.9 dB(A)
- Factory direct
- OEM / ODM
- Samples in 1–3 days
- Production 15–30 days
- 18-month warranty
- CE · ETL · RoHS
Need a non-standard size or another format? Ask an engineer or search the download center.
LWBA4D500-188NT-05 is a LONGWELL AC Backward Curved Centrifugal Fan from the Backward Curved Centrifugal Fans range, impeller Ø500 mm, rated 380 V AC, maximum airflow 9,377 m³/h, maximum static pressure 872 Pa, noise 81.9 dB(A), input power 1,300 W. The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.
Technical data
| Model | LWBA4D500-188NT-05 |
|---|---|
| Series | LWBA4D500 |
| Motor type | AC |
| Phase | 3-phase |
| Rated voltage | 380 V |
| Frequency | 50 Hz |
| Current | 2.6 A |
| Input power | 1,300 W |
| Speed | 1,350 rpm |
| Max. airflow | 9,377 m³/h |
| Max. airflow (CFM) | 5,516 CFM |
| Max. static pressure | 872 Pa |
| Noise | 81.9 dB(A) |
| Ambient temperature | -30 ~ 60 °C |
| Storage temperature | -30 ~ 70℃ |
| Humidity | 0 ~ 85 % RH |
| Altitude | < 1000m |
| Impeller diameter | Ø500 mm |
| Rotor diameter | 188 |
| Impeller material | Aluminum Alloy |
| Protection class | IP54 |
| Insulation class | F |
| Bearing | Maintenance-free ball bearings |
| Duty | S1 |
| Balance grade | According to JB/T 9101-1999 requirements G6.3 |
| Vibration standard | JB/T 8689 |
| Service life | 40,000Hours(L10), At 40 °Croom, humidity 15%~65%RH. Balancing According to JB/T 9101-1999 requirements G6.3 Vibration of the fan Test method accord with JB/T 8689 Installation method Horizontal or vertical installation Mate |
| 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 LWBA4D500: 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 | |
|---|---|---|---|---|---|---|---|
| LWBA4D500-188NT-05 this model | 9,377 m³/h | 872 Pa | 1,350 rpm | 1,300 W | 81.9 dB(A) | 380 V | |
| LWA-500(20")U(S)M-01 | 150 m³/h | see curve | 1,350 rpm | 200 W | — | 110-120 V | View |
| LWA-500(20")U(S)M-02 | 165 m³/h | see curve | 1,350 rpm | 250 W | — | 110-120 V | View |
| LWBA6D500-138NT-03 | 5,356 m³/h | 361 Pa | 950 rpm | 450 W | 63 dB(A) | 380 V | View |
| LWEA500S(T)M-069E | 5,700 m³/h | see curve | 1,450 rpm | 550 W | — | 220 V | View |
| LWEAF500-01 | 5,700 m³/h | see curve | 1,450 rpm | 550 W | — | 220 V | View |
| LWBA6D500-138NT-04 | 5,817 m³/h | 412 Pa | 1,050 rpm | 550 W | 65 dB(A) | 380 V | View |
| LWMFAF500-01 | 7,800 m³/h | 2,250 Pa | — | — | 91 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 |
| LWFA-E-500-01 | 8,380 m³/h | 850 Pa | — | — | 75 dB(A) | — | View |
| LWFA6D500-188NT-01 | 9,064 m³/h | 916.7 Pa | 900 rpm | 4,400 W | 75 dB(A) | 380 V | View |
| LWEA500TM-164E | 9,133 m³/h | 185 Pa | 1,450 rpm | 750 W | — | 380 V | View |
| LWAA4D500S-7MKB-11 | 9,270 m³/h | see curve | 1,350 rpm | 800 W | 80 dB(A) | 380/400 V | View |
| LWBA4D500-188NT-02 | 9,785 m³/h | 773 Pa | 1,400 rpm | 1,500 W | 80 dB(A) | 380 V | View |
| LWFA-E-500-02 | 11,000 m³/h | 910 Pa | — | — | 82 dB(A) | — | 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 LWBA4D500 seriesSame impeller, different speed grade or wiring
Adjacent sizesOne size up when airflow is short, one size down when it is too much
LWBE3G450-102NS-21Ø450 mm · 5,050 m³/h · 417 Pa · ECadjacent size
LWBE3G450-188NT-16Ø450 mm · 8,019 m³/h · 1,802 Pa · ECadjacent size
LWBE3G450-188NT-15Ø450 mm · 7,425 m³/h · 1,568 Pa · ECadjacent size
LWBE3G450-188NT-22Ø450 mm · 10,752 m³/h · 1,669 Pa · ECadjacent size
LWBE3G450-138NT-08Ø450 mm · 7,828 m³/h · 824 Pa · ECadjacent size
LWBE3G450-138NT-11Ø450 mm · 5,329 m³/h · 452 Pa · ECadjacent sizeAlternatives at a similar dutySimilar airflow, different construction or motor platform
LWEA400S(T)M-162EØ400 mm · 9,336 m³/h · 474 Pa · ACsimilar duty
LWAA4D500S-7MKB-11Ø500 mm · 9,270 m³/h · ACsimilar duty
LWBA6D560-188NT-02Ø560 mm · 9,270 m³/h · 464 Pa · ACsimilar duty
LWBA6D560-188NT-04Ø560 mm · 9,270 m³/h · 464 Pa · ACsimilar duty
LWBA8D630-188NT-02Ø630 mm · 9,270 m³/h · 288 Pa · ACsimilar duty
LWAA4D500S-5MEB-10Ø500 mm · 9,270 m³/h · ACsimilar dutySee all Backward Curved Centrifugal Fans · select by duty point