ImpellerØ225 mm8.9 in
Max airflow1,112 m³/h655 CFM
Max static pressure433 Pa1.74 in. wg
Voltage230 V
Speed2,500 rpm
Input power80 W
Noise69 dB(A)

LWBE3G225-072NS-10 EC Backward Curved Centrifugal Fan Ø225 mm

Ø225 mm | EC | Max airflow 1,112 m³/h | Max static pressure 433 Pa | 69 dB(A)

SKU: LWBE3G225-072NS-10 Categories: Backward Curved Centrifugal Fans, Centrifugal Fans, Impeller Ø133–225 mm

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18-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. 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.

LWBE3G225-072NS-10 Dimensional drawing — **Dimensional drawing**Dimensions in mm. Confirm against the final approval drawing before machining cut-outs.

LWBE3G225-072NS-10 Performance curve (P-Q) — **Performance curve (P-Q)**Static pressure vs. airflow. Curve numbers correspond to supply voltage / speed grades.

LWBE3G225-072NS-10 Wiring diagram — **Wiring diagram**Lead colours and terminal assignment; TK = motor thermal contact.

Downloads for LWBE3G225-072NS-10

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LWBE3G225-072NS-10 is a LONGWELL EC Backward Curved Centrifugal Fan from the Backward Curved Centrifugal Fans range, impeller Ø225 mm, rated 230 V EC, maximum airflow 1,112 m³/h, maximum static pressure 433 Pa, noise 69 dB(A), input power 80 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	LWBE3G225-072NS-10
Series	LWBE3G225
Motor type	EC
Phase	1-phase
Rated voltage	230 V
Frequency	50 Hz
Current	0.6 A
Input power	80 W
Speed	2,500 rpm
Max. airflow	1,112 m³/h
Max. airflow (CFM)	654 CFM
Max. static pressure	433 Pa
Noise	69 dB(A)
Ambient temperature	-25 ~ 60 °C
Storage temperature	-25 ~ 70℃
Humidity	0 ~ 85 % RH
Altitude	< 1000m
Impeller diameter	Ø225 mm
Rotor diameter	72
Impeller material	PA6+GF ( 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	0–10 VDC / PWM
Control signal	1.0±0.1–9.5±0.2 VDC; below 1.0 VDC standby
PWM input	1–10 kHz, 10–12 V, 30%–70% duty cycle
Speed feedback	1 pulse/rev, open-collector output, external 10 kΩ pull-up
Auxiliary output	10 VDC, max. 10 mA
Protection functions	over-temperature protection, over-current protection, locked-rotor protection
Soft start	full-speed start delay <20 s
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 LWBE3G225: 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 (Ø225 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
LWBE3G225-072NS-10 this model	1,112 m³/h	433 Pa	2,500 rpm	80 W	69 dB(A)	230 V
LWFE3G225-072PS-01	1,009.4 m³/h	618 Pa	2,300 rpm	85 W	65 dB(A)	230 V	View
LWBE3G225-072PS-11	1,112 m³/h	433 Pa	2,500 rpm	80 W	69 dB(A)	230 V	View
LWFE3G225-072PS-02	1,184.5 m³/h	669.5 Pa	2,600 rpm	115 W	67 dB(A)	230 V	View
LWFE3G225-072PS-03	1,313.25 m³/h	1,030 Pa	3,100 rpm	170 W	70 dB(A)	230 V	View
LWBE3G225-072NU-16	1,313.25 m³/h	1,030 Pa	3,100 rpm	170 W	70 dB(A)	115 V	View
LWFE3G225-092PS-04	1,359.6 m³/h	906.4 Pa	3,600 rpm	230 W	71 dB(A)	230 V	View
LWBE3G225-092NS-10	1,359.6 m³/h	906.4 Pa	3,600 rpm	230 W	71 dB(A)	230 V	View
LWBE3G225-092NU-17	1,359.6 m³/h	906.4 Pa	3,600 rpm	230 W	71 dB(A)	115 V	View
LWBE3G225-092PS-12	1,528 m³/h	683 Pa	3,060 rpm	170 W	71.1 dB(A)	230 V	View
LWBE3G225-092NS-11	1,528 m³/h	683 Pa	3,060 rpm	170 W	71 dB(A)	230 V	View
LWBE3G225-092PS-13	1,545 m³/h	731 Pa	3,000 rpm	160 W	71 dB(A)	230 V	View
LWBE3G225-092NS-12	1,545 m³/h	731 Pa	3,000 rpm	160 W	71 dB(A)	230 V	View
LWBE3G225-092PS-07	1,630 m³/h	839 Pa	3,500 rpm	315 W	71 dB(A)	230 V	View
LWBE3G225-092NS-13	1,630 m³/h	839 Pa	3,500 rpm	315 W	71 dB(A)	230 V	View