ImpellerØ550 mm21.7 in
Max airflow9,116 m³/h5,366 CFM
Voltage380 V
Speed1,350 rpm
Input power650 W

LWAA4D550S-5MEW-09 AC Axial Fan Ø550 mm

Ø550 mm | AC | Max airflow 9,116 m³/h

SKU: LWAA4D550S-5MEW-09 Categories: AC Axial Fans, Axial Fans, Impeller Ø500–800 mm

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Production 15–30 days
18-month warranty
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Drawings & downloads
Technical description

LWAA4D550S-5MEW-09 Dimensional drawing — **Dimensional drawing**Dimensions in mm. Confirm against the final approval drawing before machining cut-outs.

LWAA4D550S-5MEW-09 Performance curve (P-Q) — **Performance curve (P-Q)**Static pressure vs. airflow. Curve numbers correspond to supply voltage / speed grades.

Downloads for LWAA4D550S-5MEW-09

PDFDatasheet · 59 KB

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LWAA4D550S-5MEW-09 is a LONGWELL AC Axial Fan from the AC Axial Fans range, impeller Ø550 mm, rated 380 V AC, maximum airflow 9,116 m³/h, input power 650 W. The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.

Technical data

Model	LWAA4D550S-5MEW-09
Series	LWAA4D550
Motor type	AC
Phase	3-phase
Rated voltage	380 V
Frequency	50 Hz
Current	1.5 A
Input power	650 W
Speed	1,350 rpm
Max. airflow	9,116 m³/h
Ambient temperature	-30 ~ 60 °C
Impeller diameter	Ø550 mm
Impeller material	Cold rolled steel
Protection class	IP55
Insulation class	F
Bearing	Maintenance-free ball bearings
Duty	S1

Typical applications

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

Series LWAA4D550: 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
LWAA4D550S-5MEW-09 this model	9,116 m³/h	see curve	1,350 rpm	650 W	—	380 V
LWAA6E550S-5MEB-05	6,695 m³/h	see curve	900 rpm	320 W	62 dB(A)	220/230 V	View
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