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

ImpellerØ220 mm8.7 in
Max airflow937.3 m³/h552 CFM
Max static pressure721 Pa2.89 in. wg
Voltage115 V
Speed2,470 rpm
Input power86 W
Noise68 dB(A)

LWBE3G220-072NU-13 EC Backward Curved Centrifugal Fan Ø220 mm

Ø220 mm | EC | Max airflow 937.3 m³/h | Max static pressure 721 Pa | 68 dB(A)

SKU: LWBE3G220-072NU-13 Categories: Backward Curved Centrifugal Fans, Centrifugal Fans, Impeller Ø133–225 mm

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 Backward centrifugal fans #2 · SKU on PDF p. 13

All files for LWBE3G220-072NU-135 files · direct download

PDFFull product catalogue · model on PDF p. 13 WEBPDimensional drawing WEBPPerformance curve WEBPWiring diagram

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 K3G220, ebm-papst R3G220 — side-by-side comparison on longwellfans.com. Mounting is confirmed against the LONGWELL drawing before ordering.

Typical applications: Air conditioning · Air handling units · FanGrid arrays · FFU / EFU — all industries

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WhatsApp / Phone+86 183 5827 4663 E-mail an engineersales@longwellfans.com Files for LWBE3G220-072NU-13datasheet · catalogue · drawings · curves — listed above

Samples 1–3 days · fee credited to your order
From ~30 pcs for a first validation order
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100% tested · 12-month warranty
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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 (10 here, rated 115 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.

LWBE3G220-072NU-13 Dimensional drawing — **Dimensional drawing**Dimensions in mm. Confirm against the final approval drawing before machining cut-outs.

LWBE3G220-072NU-13 Performance curve (P-Q) — **Performance curve (P-Q)**Static pressure vs. airflow. Curve numbers correspond to supply voltage / speed grades.

LWBE3G220-072NU-13 Wiring diagram — **Wiring diagram**Lead colours and terminal assignment; TK = motor thermal contact.

Downloads for LWBE3G220-072NU-13

PDFDatasheet PDFFull product catalogue · EC ( ) EC Backward centrifugal fans #2 · model on PDF p. 13 · 27 MB

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

LWBE3G220-072NU-13 is a LONGWELL EC Backward Curved Centrifugal Fan from the Backward Curved Centrifugal Fans range, impeller Ø220 mm, rated 115 V EC, maximum airflow 937.3 m³/h, maximum static pressure 721 Pa, noise 68 dB(A), input power 86 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	LWBE3G220-072NU-13
Series	LWBE3G220
Motor type	EC
Phase	1-phase
Rated voltage	115 V
Frequency	50 Hz
Current	1.4 A
Input power	86 W
Speed	2,470 rpm
Max. airflow	937.3 m³/h
Max. static pressure	721 Pa
Noise	68 dB(A)
Ambient temperature	-25 ~ 60 °C
Storage temperature	-40 ~ 80℃
Humidity	5 ~ 90 % RH
Altitude	< 1000m
Impeller diameter	Ø220 mm
Rotor diameter	72 mm
Impeller material	PA6+GF30% ( Impeller )
Protection class	IP55
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
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 LWBE3G220: 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 (Ø220 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
LWBE3G220-072NU-13 this model	937.3 m³/h	721 Pa	2,470 rpm	86 W	68 dB(A)	115 V
LWBE3G220-072PS-10	886 m³/h	433 Pa	2,600 rpm	75 W	71 dB(A)	230 V	View
LWBE3G220-072NS-11	886 m³/h	433 Pa	2,600 rpm	75 W	71 dB(A)	230 V	View
LWBE3G220-072NS-07	937.3 m³/h	721 Pa	2,470 rpm	86 W	68 dB(A)	230 V	View
LWBE3G220-092PS-11	989 m³/h	711 Pa	3,310 rpm	145 W	75 dB(A)	230 V	View
LWBE3G220-092NS-10	989 m³/h	711 Pa	3,310 rpm	145 W	75 dB(A)	230 V	View
LWBE3G220-072NU-14	1,019.7 m³/h	597.4 Pa	2,800 rpm	115 W	69 dB(A)	115 V	View
LWBE3G220-072NS-09	1,019.7 m³/h	597.4 Pa	2,800 rpm	115 W	69 dB(A)	230 V	View
LWBE3G220-072NU-12	1,184.5 m³/h	978.5 Pa	3,250 rpm	168 W	70 dB(A)	115 V	View
LWBE3G220-072NS-08	1,184.5 m³/h	978.5 Pa	3,250 rpm	168 W	70 dB(A)	230 V	View