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 230 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.
- ImpellerØ250 mm9.8 in
- Max airflow1,730 m³/h1,018 CFM
- Max static pressure525 Pa2.11 in. wg
- Voltage230 V
- Speed2,500 rpm
- Input power145 W
- Noise74 dB(A)
LWBE3G250-092PS-20 EC Plug Fan Ø250 mm
Ø250 mm | EC | Max airflow 1,730 m³/h | Max static pressure 525 Pa | 74 dB(A)
- Factory direct
- OEM / ODM
- Samples in 1–3 days
- Production 15–30 days
- 12-month warranty
- CE · ETL · RoHS
All files for LWBE3G250-092PS-205 files · direct download
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 K3G250, ebm-papst R3G250 — 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
Longwell 250mm EC Backward Curved Centrifugal Fan | High Efficiency & Quiet HVAC Motor LWBE3G250-102PS-28 · open in video library
Longwell EC Backward Inclined Centrifugal Fan: Quiet Efficiency, Smart Future | LWBE3G250-102NS-40 · open in video library
Need a non-standard size or another format? Ask an engineer or search the download center.
LWBE3G250-092PS-20 is a LONGWELL EC Plug Fan from the Plug Fans (RLM Plenum Fans) range, impeller Ø250 mm, rated 230 V EC, maximum airflow 1,730 m³/h, maximum static pressure 525 Pa, noise 74 dB(A), input power 145 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 | LWBE3G250-092PS-20 |
|---|---|
| Series | LWBE3G250 |
| Motor type | EC |
| Phase | 1-phase |
| Rated voltage | 230 V |
| Frequency | 50 Hz |
| Current | 1 A |
| Input power | 145 W |
| Speed | 2,500 rpm |
| Max. airflow | 1,730 m³/h |
| Max. airflow (CFM) | 1,018 CFM |
| Max. static pressure | 525 Pa |
| Noise | 74 dB(A) |
| Ambient temperature | -25 ~ 60 °C |
| Storage temperature | -25 ~ 70℃ |
| Humidity | 0 ~ 85 % RH |
| Altitude | < 1000m |
| Impeller diameter | Ø250 mm |
| Rotor diameter | 92 mm |
| Impeller material | Aluminum Alloy ( Impeller ) |
| Protection class | IP44 |
| Insulation class | B |
| 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 °Croom, humidity 15%~65%RH |
| Speed control | Control input 0~10VDC / PWM |
| Control signal | Control signal VSP voltage range1±0.1VDC~9.5±0.2VDC(During normal operation, when the VSP voltage is below 1.0±0.2VDC, the motor switches from operating mode to standby mode) |
| PWM input | PWM signal: frequency 1K–10KHz, amplitude 10–12V,duty cycle 30%–70% . |
| Speed feedback | Tach output: 1 Pulse/R; FG internal open circuit output, external pull-up resistor 10KΩ, pull-up voltage +10V |
| Auxiliary output | Output 10VDC, Max Current 10 mA |
| Protection functions | Over-temperature protection, Over-current protection, Locked-rotor protection’ |
| Soft start | Delay time <20 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 LWBE3G250: 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 (Ø250 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 | |
|---|---|---|---|---|---|---|---|
| LWBE3G250-092PS-20 this model | 1,730 m³/h | 525 Pa | 2,500 rpm | 145 W | 74 dB(A) | 230 V | |
| LWBE3G250-072PS-15 | 1,215 m³/h | 391 Pa | 2,150 rpm | 90 W | 68 dB(A) | 230 V | View |
| LWBE3G250-072NU-20 | 1,331 m³/h | 649 Pa | 2,760 rpm | 160 W | 68 dB(A) | 115 V | View |
| LWBE3G250-092PS-21 | 1,421 m³/h | 556 Pa | 2,600 rpm | 170 W | 69 dB(A) | 230 V | View |
| LWBE3G250-072PS-17 | 1,421 m³/h | 639 Pa | 2,760 rpm | 140 W | 77 dB(A) | 230 V | View |
| LWBE3G250-092NS-23 | 1,421 m³/h | 556 Pa | 2,600 rpm | 170 W | 69 dB(A) | 230 V | View |
| LWBE3G250-102PS-22 | 1,524 m³/h | 773 Pa | 3,150 rpm | 240 W | 78 dB(A) | 230 V | View |
| LWBE3G250-102NS-24 | 1,524 m³/h | 773 Pa | 3,150 rpm | 240 W | 78 dB(A) | 230 V | View |
| LWBE3G250-092PS-16 | 1,531 m³/h | 785 Pa | 3,010 rpm | 140 W | 72.1 dB(A) | 230 V | View |
| LWBE3G250-102PS-24 | 1,700 m³/h | 1,082 Pa | 3,500 rpm | 370 W | 82 dB(A) | 230 V | View |
| LWBE3G250-102NS-26 | 1,700 m³/h | 1,082 Pa | 3,500 rpm | 370 W | 82 dB(A) | 230 V | View |
| LWBE3G250-092NS-22 | 1,730 m³/h | 525 Pa | 2,500 rpm | 145 W | 74 dB(A) | 230 V | View |
| LWBE3G250-102PS-23 | 1,751 m³/h | 824 Pa | 3,170 rpm | 270 W | 84 dB(A) | 230 V | View |
| LWBE3G250-102NS-25 | 1,751 m³/h | 824 Pa | 3,170 rpm | 270 W | 84 dB(A) | 230 V | View |
| LWFE3G250-102PT-08 | 3,708 m³/h | 1,751 Pa | 3,860 rpm | 1,000 W | 92 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 LWBE3G250 seriesSame impeller, different speed grade or wiring
LWBE3G250-072NS-08Ø250 mm · 1,184.5 m³/h · 618 Pa · ECsame series
LWBE3G250-072NS-18Ø250 mm · 1,236 m³/h · 515 Pa · ECsame series
LWBE3G250-072NS-09Ø250 mm · 1,478.05 m³/h · 927 Pa · ECsame series
LWBE3G250-072NU-34Ø250 mm · 1,478.05 m³/h · 927 Pa · ECsame series
LWBE3G250-072NU-32Ø250 mm · 1,184.5 m³/h · 618 Pa · ECsame series
LWBE3G250-072NU-33Ø250 mm · 1,236 m³/h · 515 Pa · ECsame seriesAdjacent sizesOne size up when airflow is short, one size down when it is too much
LWBE3G270-092NS-02Ø270 mm · 1,545 m³/h · 332 Pa · ECadjacent size
LWBE3G270-092NU-01Ø270 mm · 1,545 m³/h · 332 Pa · ECadjacent size
LWBE3G225-092PS-07Ø225 mm · 1,630 m³/h · 839 Pa · ECadjacent size
LWBA2E225-092NS-01Ø225 mm · 618 m³/h · 165 Pa · ACadjacent size
LWBA2E225-092NS-10Ø225 mm · 1,257 m³/h · 695 Pa · ACadjacent size
LWBE3G225-092NS-12Ø225 mm · 1,545 m³/h · 731 Pa · ECadjacent sizeAlternatives at a similar dutySimilar airflow, different construction or motor platform
LWFE3G180-092DS-02Ø180 mm · 1,730 m³/h · 247 Pa · ECsimilar duty
LWBE3G250-092NS-22Ø250 mm · 1,730 m³/h · 525 Pa · ECsimilar duty
LWCE-100820SN-06Ø100 mm · 1,735 m³/h · 229 Pa · ECsimilar dutyLWWAF-3.2A-0.04-4P-1-0011,720 m³/h · ACsimilar duty
LWBE3G280-092NS-13Ø280 mm · 1,743 m³/h · 481 Pa · ECsimilar duty
LWBE3G280-092PS-14Ø280 mm · 1,743 m³/h · 481 Pa · ECsimilar dutySee all Centrifugal Fans · select by duty point