ImpellerØ133 mm5.2 in
Max airflow979 m³/h576 CFM
Max static pressure484 Pa1.94 in. wg
Voltage230 V
Speed1,450 rpm
Input power120 W
Noise70 dB(A)

LWFE3G133-072DS-02 EC Dual Inlet Forward Centrifugal Blower Ø133 mm

Ø133 mm | EC | Max airflow 979 m³/h | Max static pressure 484 Pa | 70 dB(A)

SKU: LWFE3G133-072DS-02 Categories: Centrifugal Fans, Dual Inlet Forward Curved Blowers, Impeller Ø120–146 mm

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

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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.

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WhatsApp / Phone+86 183 5827 4663 E-mail an engineersales@longwellfans.com Datasheet (PDF)electrical & performance data All files for LWFE3G133-072DS-02drawings · curves · datasheet

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From ~30 pcs for a first validation order
T/T 30 / 70 · FOB / CIF / DDP
100% tested · 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.

LWFE3G133-072DS-02 Dimensional drawing — **Dimensional drawing**Dimensions in mm. Confirm against the final approval drawing before machining cut-outs.

LWFE3G133-072DS-02 Performance curve (P-Q) — **Performance curve (P-Q)**Static pressure vs. airflow. Curve numbers correspond to supply voltage / speed grades.

LWFE3G133-072DS-02 Wiring diagram — **Wiring diagram**Lead colours and terminal assignment; TK = motor thermal contact.

Downloads for LWFE3G133-072DS-02

PDFDatasheet DOCXDatasheet · 506 KB PDFDrawing · 529 KB

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

LWFE3G133-072DS-02 is a LONGWELL EC Dual Inlet Forward Centrifugal Blower from the Dual Inlet Forward Curved Blowers range, impeller Ø133 mm, rated 230 V EC, maximum airflow 979 m³/h, maximum static pressure 484 Pa, noise 70 dB(A), input power 120 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	LWFE3G133-072DS-02
Series	LWFE3G133
Motor type	EC
Phase	1-phase
Rated voltage	230 V
Frequency	50 Hz
Current	0.95 A
Input power	120 W
Speed	1,450 rpm
Max. airflow	979 m³/h
Max. airflow (CFM)	576 CFM
Max. static pressure	484 Pa
Noise	70 dB(A)
Ambient temperature	-25 ~ 60 °C
Storage temperature	-25 ~ 70℃
Humidity	0 ~ 85 % RH
Altitude	< 1000m
Impeller diameter	Ø133 mm
Rotor diameter	72
Impeller material	Galvanised sheet steel ( 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 LWFE3G133: 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 (Ø133 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
LWFE3G133-072DS-02 this model	979 m³/h	484 Pa	1,450 rpm	120 W	70 dB(A)	230 V
LWFE3G133-072PS-02	267.8 m³/h	453.2 Pa	3,800 rpm	30 W	63 dB(A)	230 V	View
LWBE3G133-072NU-09	267.8 m³/h	453.2 Pa	3,800 rpm	30 W	63 dB(A)	115 V	View
LWBE3G133-072NS-07	267.8 m³/h	453.2 Pa	3,800 rpm	30 W	63 dB(A)	230 V	View
LWFE3G133-072SS-01	319 m³/h	191 Pa	2,050 rpm	65 W	68 dB(A)	230 V	View
LWFE3G133-072PS-03	432.6 m³/h	432.6 Pa	4,400 rpm	53 W	70 dB(A)	230 V	View
LWBE3G133-072NU-10	432.6 m³/h	432.6 Pa	4,400 rpm	53 W	70 dB(A)	115 V	View
LWBE3G133-072NS-08	432.6 m³/h	432.6 Pa	4,400 rpm	53 W	70 dB(A)	230 V	View
LWFE3G133-072NS-01	433 m³/h	288 Pa	2,290 rpm	85 W	63 dB(A)	230 V	View
LWBE3G133-072PS-06	473 m³/h	609 Pa	5,200 rpm	72 W	68 dB(A)	230 V	View
LWBE3G133-072NS-06	473 m³/h	609 Pa	5,220 rpm	72 W	68 dB(A)	230 V	View
LWFE3G133-092DS-03	690 m³/h	330 Pa	1,550 rpm	80 W	69 dB(A)	230 V	View
LWFE3G133-072DS-01	773 m³/h	288 Pa	1,750 rpm	105 W	69 dB(A)	230 V	View