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 airflow10,305 m³/h6,062 CFM
- Max static pressure903 Pa3.63 in. wg
- Voltage400 V
- Speed1,705 rpm
- Input power1,900 W2.55 hp
- Noise72 dB(A)
LWBE3G500-188NT-14 EC Backward Curved Centrifugal Fan Ø500 mm
Ø500 mm | EC | Max airflow 10,305 m³/h | Max static pressure 903 Pa | 72 dB(A)
- Factory direct
- OEM / ODM
- Samples in 1–3 days
- Production 15–30 days
- 18-month warranty
- CE · RoHS · ETL on request
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 LWBE3G500-188NT-14
DOCXDatasheet · 652 KBNeed a non-standard size or another format? Ask an engineer or search the download center.
LWBE3G500-188NT-14 is a LONGWELL EC Backward Curved Centrifugal Fan from the Backward Curved Centrifugal Fans range, impeller Ø500 mm, rated 400 V EC, maximum airflow 10,305 m³/h, maximum static pressure 903 Pa, noise 72 dB(A), input power 1,900 W. The EC motor integrates the drive electronics: stepless speed control by 0–10 V or PWM signal, speed feedback and high efficiency at part load.
Technical data
| Model | LWBE3G500-188NT-14 |
|---|---|
| Series | LWBE3G500 |
| Motor type | EC |
| Phase | 3-phase |
| Rated voltage | 400 V |
| Frequency | 50 Hz |
| Current | 4 A |
| Input power | 1,900 W |
| Speed | 1,705 rpm |
| Max. airflow | 10,305 m³/h |
| Max. airflow (CFM) | 6,062 CFM |
| Max. static pressure | 903 Pa |
| Noise | 72 dB(A) |
| Ambient temperature | -25 ~ 60 °C |
| 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 | Test method accord with JB/T 8689 |
| Service life | 40,000Hours(L10). At 40℃ room, humidity 15%~65%RH |
| Speed control | Control input 0~10VDC(RS485 external control box can be connected) |
| Control signal | Control signal VSP voltage range 1.5±0.1VDC~9.5±0.2VDC(During normal operation, when the VSP voltage is below 0.9±0.1VDC, the motor switches from operating mode to standby mode) |
| Speed feedback | Tach output: 15Pulse/R; FG internal open circuit output, external pull-up resistor R, pull-up voltage V+ |
| Auxiliary output | Output 10±0.3VDC, Max Current: 22mA |
| Communication | LWRS485-04 |
| Protection functions | Current limiting protection, Over-temperature protection, Over-current protectionLocked-rotor protection, Input power supply lacks phase protection |
| Soft start | Delay time <35 seconds to full speed |
| 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 LWBE3G500: 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 · EC)
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 | |
|---|---|---|---|---|---|---|---|
| LWBE3G500-188NT-14 this model | 10,305 m³/h | 903 Pa | 1,705 rpm | 1,900 W | 72 dB(A) | 400 V | |
| LWBE3G500-138PT-08 | 8,137 m³/h | 464 Pa | 1,100 rpm | 870 W | 71 dB(A) | 400 V | View |
| LWBE3G500-138NT-13 | 8,137 m³/h | 464 Pa | 1,100 rpm | 870 W | 71 dB(A) | 400 V | View |
| LWBE3G500-188PT-07 | 10,305 m³/h | 903 Pa | 1,705 rpm | 1,900 W | — | 400 V | View |
| LWBE3G500-188PT-02 | 12,243 m³/h | 1,265 Pa | 2,000 rpm | 3,160 W | — | 400 V | View |
| LWBE3G500-188NT-09 | 12,243 m³/h | 1,265 Pa | 2,000 rpm | 3,160 W | 78 dB(A) | 400 V | View |
| LWBE3G500-188PT-05 | 13,472 m³/h | 1,541 Pa | 2,200 rpm | 4,200 W | 88 dB(A) | 400 V | View |
| LWBE3G500-188NT-10 | 13,472 m³/h | 1,541 Pa | 2,200 rpm | 4,200 W | 66 dB(A) | 400 V | View |
| LWBE3G500-188PT-04 | 14,214 m³/h | 886 Pa | 1,800 rpm | 3,000 W | 89 dB(A) | 400 V | View |
| LWBE3G500-188NT-08 | 14,214 m³/h | 886 Pa | 1,800 rpm | 3,000 W | 89 dB(A) | 400 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 LWBE3G500 seriesSame impeller, different speed grade or wiring
LWBE3G500-138NT-13Ø500 mm · 8,137 m³/h · 464 Pa · ECsame series
LWBE3G500-188NT-09Ø500 mm · 12,243 m³/h · 1,265 Pa · ECsame series
LWBE3G500-188NT-08Ø500 mm · 14,214 m³/h · 886 Pa · ECsame series
LWBE3G500-188NT-10Ø500 mm · 13,472 m³/h · 1,541 Pa · ECsame series
LWBE3G500-138PT-08Ø500 mm · 8,137 m³/h · 464 Pa · ECsame series
LWBE3G500-188PT-02Ø500 mm · 12,243 m³/h · 1,265 Pa · ECsame seriesAdjacent 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
LWBE3G500-188PT-07Ø500 mm · 10,305 m³/h · 903 Pa · ECsimilar duty
LWEA700S(T)M-071EØ700 mm · 10,200 m³/h · ACsimilar duty
LWEX-AF-7A-1.1-4P-3-00110,200 m³/h · ACsimilar duty
LWEAF700-01Ø700 mm · 10,200 m³/h · ACsimilar duty
LWAA6D600S-5MEB-05Ø600 mm · 10,197 m³/h · ACsimilar duty
LWAA6E600S-5MEB-03Ø600 mm · 10,197 m³/h · ACsimilar dutySee all Backward Curved Centrifugal Fans · select by duty point