Representative image of the series — dimensions and configuration of this model are given in the drawing and data table below.

ImpellerØ250 mm9.8 in
Max airflow1,700 m³/h1,000 CFM
Max static pressure1,082 Pa4.34 in. wg
Voltage230 V
Speed3,500 rpm
Input power370 W
Noise82 dB(A)

LWBE3G250-102PS-24 EC Plug Fan Ø250 mm

Ø250 mm | EC | Max airflow 1,700 m³/h | Max static pressure 1,082 Pa | 82 dB(A)

SKU: LWBE3G250-102PS-24 Categories: Centrifugal Fans, Impeller Ø250–310 mm, Plug Fans (RLM Plenum Fans)

Factory direct
OEM / ODM
Samples in 1–3 days
Production 15–30 days
12-month warranty
CE · ETL · RoHS

PDFDatasheet (PDF)electrical & performance dataPDFFull product catalogueEC ( ) EC plug fans #1 · SKU on PDF p. 24

All files for LWBE3G250-102PS-246 files · direct download

PDFFull product catalogue · model on PDF p. 24 WEBPDimensional drawing WEBPPerformance curve WEBPWiring diagram DOCXDatasheet

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

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WhatsApp / Phone+86 183 5827 4663 E-mail an engineersales@longwellfans.com Files for LWBE3G250-102PS-24datasheet · catalogue · drawings · curves — listed above

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Required airflow Required static pressure

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.

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

LWBE3G250-102PS-24 Dimensional drawing — **Dimensional drawing**Dimensions in mm. Confirm against the final approval drawing before machining cut-outs.

LWBE3G250-102PS-24 Performance curve (P-Q) — **Performance curve (P-Q)**Static pressure vs. airflow. Curve numbers correspond to supply voltage / speed grades.

LWBE3G250-102PS-24 Wiring diagram — **Wiring diagram**Lead colours and terminal assignment; TK = motor thermal contact.

Downloads for LWBE3G250-102PS-24

PDFFull product catalogue · EC ( ) EC plug fans #1 · model on PDF p. 24 · 48.6 MB DOCXDatasheet · 578 KB PDFDatasheet · 565 KB

Need a non-standard size or another format? Ask an engineer or search the download center.

LWBE3G250-102PS-24 is a LONGWELL EC Plug Fan from the Plug Fans (RLM Plenum Fans) range, impeller Ø250 mm, rated 230 V EC, maximum airflow 1,700 m³/h, maximum static pressure 1,082 Pa, noise 82 dB(A), input power 370 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	LWBE3G250-102PS-24
Series	LWBE3G250
Motor type	EC
Phase	1-phase
Rated voltage	230 V
Frequency	50 Hz
Current	2.6 A
Input power	370 W
Speed	3,500 rpm
Max. airflow	1,700 m³/h
Max. airflow (CFM)	1,000 CFM
Max. static pressure	1,082 Pa
Noise	82 dB(A)
Ambient temperature	-25 ~ 60 °C
Storage temperature	-25 ~ 70℃
Humidity	0 ~ 85 % RH
Altitude	< 1000m
Impeller diameter	Ø250 mm
Rotor diameter	102 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 °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±0.1VDC, the motor switches from operating mode to standby mode)
Speed feedback	Tach output: 4 Pulse/R; FG internal open circuit output, external pull-up resistor R, pull-up voltage V+
Auxiliary output	Output 10VDC, Max Current 10 mA
Protection functions	Current limiting protection , Over-temperature protection, Over-current protectionLocked-rotor protection’ , Input power supply lacks phase protection
Soft start	Delay time <30 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
LWBE3G250-102PS-24 this model	1,700 m³/h	1,082 Pa	3,500 rpm	370 W	82 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
LWBE3G250-102NS-26	1,700 m³/h	1,082 Pa	3,500 rpm	370 W	82 dB(A)	230 V	View
LWBE3G250-092PS-20	1,730 m³/h	525 Pa	2,500 rpm	145 W	74 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