ImpellerØ450 mm17.7 in
Max airflow6,695 m³/h3,941 CFM
Max static pressure242 Pa0.97 in. wg
Voltage220/230 V
Speed1,590 rpm
Input power420 W
Noise68 dB(A)

LWAE3G450SS-5MEW-03 EC Axial Fan Ø450 mm

Ø450 mm | EC | Max airflow 6,695 m³/h | Max static pressure 242 Pa | 68 dB(A)

SKU: LWAE3G450SS-5MEW-03 Categories: Axial Fans, EC Axial Fans, Impeller Ø300–450 mm

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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 LWAE3G450SS-5MEW-03drawings · curves · datasheet

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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.

LWAE3G450SS-5MEW-03 Dimensional drawing — **Dimensional drawing**Dimensions in mm. Confirm against the final approval drawing before machining cut-outs.

LWAE3G450SS-5MEW-03 Performance curve (P-Q) — **Performance curve (P-Q)**Static pressure vs. airflow. Curve numbers correspond to supply voltage / speed grades.

LWAE3G450SS-5MEW-03 Wiring diagram — **Wiring diagram**Lead colours and terminal assignment; TK = motor thermal contact.

Downloads for LWAE3G450SS-5MEW-03

PDFDatasheet DOCXDatasheet · 632 KB

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

LWAE3G450SS-5MEW-03 is a LONGWELL EC Axial Fan from the EC Axial Fans range, impeller Ø450 mm, rated 220/230 V EC, maximum airflow 6,695 m³/h, maximum static pressure 242 Pa, noise 68 dB(A), input power 420 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	LWAE3G450SS-5MEW-03
Series	LWAE3G450
Motor type	EC
Phase	1-phase
Rated voltage	220/230 V
Voltage range	176 ~ 264 V
Frequency	50/60 Hz
Current	2 A
Input power	420 W
Speed	1,590 rpm
Max. airflow	6,695 m³/h
Max. airflow (CFM)	3,985 CFM
Max. static pressure	242 Pa
Noise	68 dB(A)
Ambient temperature	-25 ~ +60 ℃
Storage temperature	-35 ~ 70℃
Humidity	5 ~ 95 % RH
Altitude	< 1000m
Impeller diameter	Ø450 mm
Impeller material	Cold-rolled sheet ( Impeller )
Protection class	IP54
Insulation class	B
Bearing	Maintenance-free deep groove ball bearings
Duty	S1
Balance grade	G6.3
Vibration standard	JB/T 8689
Service life	30,000Hours(L10), At 40 °Croom, humidity 15%~65%RH
Speed control	Control input 0~10VDC / PWM
Control signal	Control signal VSP voltage range1VDC~9.5VDC(During normal operation, when the VSP voltage is below 1.0VDC, 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: 12 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

Condensers, evaporators and dry coolers
Heat-pump and chiller outdoor units
Building and workshop ventilation
Cooling towers and transformer cooling

Series LWAE3G450: 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 (Ø450 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
LWAE3G450SS-5MEW-03 this model	6,695 m³/h	242 Pa	1,590 rpm	420 W	68 dB(A)	220/230 V
LWBE3G450-138PT-12	5,329 m³/h	452 Pa	1,200 rpm	386 W	—	400 V	View
LWBE3G450-138PT-13	7,182 m³/h	730 Pa	1,610 rpm	900 W	—	400 V	View
LWBE3G450-188PT-07	7,425 m³/h	1,568 Pa	2,400 rpm	1,590 W	—	400 V	View
LWBE3G450-188NT-15	7,425 m³/h	1,568 Pa	2,400 rpm	1,590 W	70 dB(A)	400 V	View
LWFE3G450-102PS-11	7,467.5 m³/h	1,030 Pa	1,450 rpm	700 W	70 dB(A)	230 V	View
LWBE3G450-138PT-04	7,828 m³/h	824 Pa	1,720 rpm	910 W	79 dB(A)	400 V	View
LWBE3G450-188PT-08	8,019 m³/h	1,802 Pa	2,600 rpm	2,060 W	—	400 V	View
LWBE3G450-188NT-16	8,019 m³/h	1,802 Pa	2,600 rpm	2,060 W	74 dB(A)	400 V	View
LWFE3G450-102PT-06	8,652 m³/h	1,390.5 Pa	1,500 rpm	1,100 W	85 dB(A)	400 V	View
LWBE3G450-188PT-09	8,661 m³/h	2,114 Pa	2,800 rpm	2,595 W	—	400 V	View
LWBE3G450-188NT-17	8,661 m³/h	2,114 Pa	2,800 rpm	2,595 W	85 dB(A)	400 V	View
LWBE3G450-188PT-16	8,985 m³/h	840 Pa	2,600 rpm	2,400 W	—	400 V	View
LWBE3G450-188NT-22	10,752 m³/h	1,669 Pa	2,400 rpm	2,400 W	92 dB(A)	380 V	View
LWBE3G450-188NT-21	12,647 m³/h	2,342 Pa	2,800 rpm	4,600 W	96 dB(A)	380 V	View