Digitised from the catalogue curve at standard air (20 °C, 101.3 kPa, 1.2 kg/m³); one curve per voltage / speed grade (3 here, rated 400 V). Data version: catalogue 2026-08. 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.
Representative image of the series — dimensions and configuration of this model are given in the drawing and data table below.
- ImpellerØ400 mm15.7 in
- Max airflow9,682 m³/h5,695 CFM
- Max static pressure1,627 Pa6.53 in. wg
- Voltage400 V
- Speed2,650 rpm
- Input power2,060 W2.76 hp
- Noise84 dB(A)
LWBE3G400-188PT-07 EC Plug Fan Ø400 mm
Ø400 mm | EC | Max airflow 9,682 m³/h | Max static pressure 1,627 Pa | 84 dB(A)
- Factory direct
- OEM / ODM
- Samples in 1–3 days
- Production 15–30 days
- 12-month warranty
- CE · RoHS · ETL on request
PDFDatasheet (PDF)electrical & performance dataPDFFull product catalogueEC ( ) EC plug fans #1 · SKU on PDF p. 54
All files for LWBE3G400-188PT-076 files · direct download
PDFFull product catalogue · model on PDF p. 54WEBPDimensional drawingWEBPPerformance curveWEBPWiring diagramDOCXDatasheet
CAD models (STEP / DWG) are released on request — see “Engineering files” below. Another format or a non-standard variant? Ask an engineer · download center
Proven in: AHU & ventilation unit fans · CRAH FanGrid retrofit · Heat pump fan programme — all case studies on longwellfans.com
Cross-reference: same impeller size class as ebm-papst K3G400, ebm-papst R3G400, ebm-papst RadiPac 400, Ziehl-Abegg RH40C — side-by-side comparison on longwellfans.com. Mounting is confirmed against the LONGWELL drawing before ordering.
Typical applications: Industrial AHUs · Air conditioning · Air handling units · FanGrid arrays — all industries
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.
LONGWELL 400mm EC Backward Curved Centrifugal Fan for AHU & HVAC Systems | LWBE3G400 · open in video library
Longwell Centrifugal Fans: Efficient and Quiet, Leading New Industry Trends | LWBE3G400-102NS-22 · open in video library
Downloads for LWBE3G400-188PT-07
PDFDatasheetPDFFull product catalogue · EC ( ) EC plug fans #1 · model on PDF p. 54 · 48.6 MBDOCXDatasheet · 834 KBNeed a non-standard size or another format? Ask an engineer or search the download center.
LWBE3G400-188PT-07 is a LONGWELL EC Plug Fan from the Plug Fans (RLM Plenum Fans) range, impeller Ø400 mm, rated 400 V EC, maximum airflow 9,682 m³/h, maximum static pressure 1,627 Pa, noise 84 dB(A), input power 2,060 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 | LWBE3G400-188PT-07 |
|---|---|
| Series | LWBE3G400 |
| Motor type | EC |
| Phase | 3-phase |
| Rated voltage | 400 V |
| Frequency | 50 Hz |
| Current | 4.2 A |
| Input power | 2,060 W |
| Speed | 2,650 rpm |
| Max. airflow | 9,682 m³/h |
| Max. airflow (CFM) | 5,695 CFM |
| Max. static pressure | 1,627 Pa |
| Noise | 84 dB(A) |
| Ambient temperature | -25 ~ 60 °C |
| Storage temperature | -25 ~ 70℃ |
| Humidity | 0 ~ 85% RH |
| Altitude | < 1000m |
| Impeller diameter | Ø400 mm |
| Rotor diameter | 188 mm |
| Impeller material | Aluminum Alloy (Impeller) |
| Protection class | IP54 |
| Insulation class | F |
| Bearing | Maintenance-free deep groove ball bearings |
| Duty | S1 |
| Balance grade | G6.3 |
| Vibration standard | JB/T 8689 |
| Service life | 40,000Hours(L10). At 40℃room, humidity 15%~65%RH |
| Speed control | Control input 0~10VDC/PWM/RS485 |
| 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: 15 Pulse/R; FG internal open circuit output, external pull-up resistor 10K, pull-up voltage V+ |
| Auxiliary output | Output 10±0.3VDC, Max Current: 22mA |
| Communication | LWRS485-03 |
| 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 |
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 LWBE3G400: 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 (Ø400 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 | |
|---|---|---|---|---|---|---|---|
| LWBE3G400-188PT-07 this model | 9,682 m³/h | 1,627 Pa | 2,650 rpm | 2,060 W | 84 dB(A) | 400 V | |
| LWBE3G400-102PS-11 | 3,554 m³/h | 546 Pa | 1,460 rpm | 300 W | 76 dB(A) | 230 V | View |
| LWBE3G400-102NS-16 | 3,554 m³/h | 546 Pa | 1,460 rpm | 300 W | 76 dB(A) | 230 V | View |
| LWBE3G400-102PS-01 | 3,914 m³/h | 556 Pa | 1,430 rpm | 330 W | 70 dB(A) | 230 V | View |
| LWBE3G400-102NS-02 | 3,914 m³/h | 556.2 Pa | 1,430 rpm | 330 W | 70 dB(A) | 230 V | View |
| LWBE3G400-102PS-09 | 4,463 m³/h | 420 Pa | 1,250 rpm | 297 W | — | 230 V | View |
| LWBE3G400-102NS-14 | 4,463 m³/h | 420 Pa | 1,250 rpm | 297 W | 62 dB(A) | 230 V | View |
| LWBE3G400-102NS-15 | 5,476 m³/h | 600 Pa | 1,520 rpm | 500 W | 68 dB(A) | 230 V | View |
| LWBE3G400-102PS-10 | 5,615 m³/h | 622 Pa | 1,520 rpm | 500 W | — | 230 V | View |
| LWBE3G400-102NS-11 | 6,489 m³/h | 978.5 Pa | 1,800 rpm | 700 W | 85 dB(A) | 230 V | View |
| LWBE3G400-138PT-04 | 7,459 m³/h | 840 Pa | 2,060 rpm | 1,100 W | 77 dB(A) | 400 V | View |
| LWBE3G400-138NT-12 | 7,459 m³/h | 840 Pa | 1,100 rpm | 1,480 W | 71 dB(A) | 400 V | View |
| LWBE3G400-188NT-17 | 9,682 m³/h | 1,627 Pa | 2,650 rpm | 2,060 W | 84 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.
Other models in the LWBE3G400 seriesSame impeller, different speed grade or wiring
LWBE3G400-102NS-11Ø400 mm · 6,489 m³/h · 978.5 Pa · ECsame series
LWBE3G400-102NS-02Ø400 mm · 3,914 m³/h · 556.2 Pa · ECsame series
LWBE3G400-102NS-14Ø400 mm · 4,463 m³/h · 420 Pa · ECsame series
LWBE3G400-102NS-15Ø400 mm · 5,476 m³/h · 600 Pa · ECsame series
LWBE3G400-102NS-16Ø400 mm · 3,554 m³/h · 546 Pa · ECsame series
LWBE3G400-138NT-12Ø400 mm · 7,459 m³/h · 840 Pa · ECsame seriesAdjacent sizesOne size up when airflow is short, one size down when it is too much
LWBE3G355-092PS-15Ø355 mm · 2,472 m³/h · 350 Pa · ECadjacent size
LWBE3G355-102PS-18Ø355 mm · 3,915 m³/h · 770 Pa · ECadjacent size
LWBE3G355-102PS-17Ø355 mm · 3,142 m³/h · 670 Pa · ECadjacent size
LWBE3G355-102PS-16Ø355 mm · 3,554 m³/h · 618 Pa · ECadjacent size
LWBE3G355-138PT-05Ø355 mm · 7,045 m³/h · 830 Pa · ECadjacent size
LWBE3G355-102NS-15Ø355 mm · 3,915 m³/h · 770 Pa · ECadjacent sizeAlternatives at a similar dutySimilar airflow, different construction or motor platform
See all Centrifugal Fans · select by duty point