ImpellerØ550 mm21.7 in
Max airflow6,695 m³/h3,941 CFM
Voltage220/230 V
Speed900 rpm
Input power320 W
Noise62 dB(A)

LWAA6E550S-5MEB-05 AC Axial Fan Ø550 mm

Ø550 mm | AC | Max airflow 6,695 m³/h | 62 dB(A)

SKU: LWAA6E550S-5MEB-05 Categories: AC Axial Fans, Axial Fans, Impeller Ø500–800 mm

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12-month warranty
CE · RoHS · ETL on request

PDFDatasheet (PDF)electrical & performance dataPDFFull product catalogueAC ( ) Axial fans( Standard Version) · SKU on PDF p. 23

All files for LWAA6E550S-5MEB-056 files · direct download

PDFFull product catalogue · model on PDF p. 23 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: Heat pump fan programme · Telecom & power cabinet cooling · Cold chain supermarket retrofit · Dry-type transformer cooling — all case studies on longwellfans.com

Typical applications: Heat exchangers & condensers · Refrigeration · Condensing units · Refrigeration condensers — all industries

Engineering files (on request)

CAD files exist for this model and can be released for assembly checks in SolidWorks / CATIA / Creo / Inventor.

STEP3D model (STEP)43.5 MBRequest →

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 Files for LWAA6E550S-5MEB-05datasheet · catalogue · drawings · curves — listed above

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Drawings & downloads
Technical description

LWAA6E550S-5MEB-05 Dimensional drawing — **Dimensional drawing**Dimensions in mm. Confirm against the final approval drawing before machining cut-outs.

LWAA6E550S-5MEB-05 Performance curve (P-Q) — **Performance curve (P-Q)**Static pressure vs. airflow. Curve numbers correspond to supply voltage / speed grades.

LWAA6E550S-5MEB-05 Wiring diagram — **Wiring diagram**Lead colours and terminal assignment; TK = motor thermal contact.

Downloads for LWAA6E550S-5MEB-05

PDFDatasheet PDFFull product catalogue · AC ( ) Axial fans( Standard Version) · model on PDF p. 23 · 24.5 MB DOCXDatasheet · 802 KB

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

LWAA6E550S-5MEB-05 is a LONGWELL AC Axial Fan from the AC Axial Fans range, impeller Ø550 mm, rated 220/230 V AC, maximum airflow 6,695 m³/h, noise 62 dB(A), input power 320 W. The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.

Technical data

Model	LWAA6E550S-5MEB-05
Series	LWAA6E550
Motor type	AC
Phase	1-phase
Rated voltage	220/230 V
Voltage range	198 ~ 242 V
Frequency	50 Hz
Current	1.2 A
Input power	320 W
Speed	900 rpm
Max. airflow	6,695 m³/h
Noise	62 dB(A)
Ambient temperature	-30 ~ +60 ℃
Storage temperature	-40 ~ 80℃
Humidity	0 ~ 95 % RH
Altitude	< 1000m
Impeller diameter	Ø550 mm
Impeller material	Cold-rolled sheet ( Impeller )
Protection class	IP54
Insulation class	F
Bearing	Maintenance-free ball bearings
Duty	S1
Balance grade	G6.3
Vibration standard	JB/T 8689
Service life	30,000Hours(L10), At 20 °Croom, humidity 15%~65%RH

Typical applications

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

Series LWAA6E550: 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 (Ø550 mm · AC)

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
LWAA6E550S-5MEB-05 this model	6,695 m³/h	see curve	900 rpm	320 W	62 dB(A)	220/230 V
LWAA6D550S-5MEB-07	6,695 m³/h	see curve	910 rpm	320 W	62 dB(A)	380 V	View
LWAA6E550S-5MEB-06	7,210 m³/h	see curve	1,060 rpm	465 W	66 dB(A)	220/230 V	View
LWAA6D550S-5MEB-08	7,210 m³/h	see curve	1,090 rpm	440 W	66 dB(A)	380 V	View
LWAA4E550B-5MKB-09	8,034 m³/h	see curve	1,320 rpm	550 W	73 dB(A)	220/230 V	View
LWAA4D550S-5MKB-10	8,034 m³/h	194 Pa	1,330 rpm	550 W	73 dB(A)	380 V	View
LWAA4E550S-5MEB-01	8,034 m³/h	see curve	1,320 rpm	550 W	73 dB(A)	220/230 V	View
LWAA4D550S-5MEB-03	8,034 m³/h	see curve	1,330 rpm	550 W	73 dB(A)	380 V	View
LWAA4E550S-5MEB-02	8,755 m³/h	see curve	1,450 rpm	550 W	74 dB(A)	220/230 V	View
LWAA4D550S-5MEB-04	8,755 m³/h	see curve	1,540 rpm	725 W	74 dB(A)	380 V	View
LWAA4D550S-5MEW-09	9,116 m³/h	see curve	1,350 rpm	650 W	—	380 V	View