ImpellerØ710 mm28.0 in
Max airflow20,600 m³/h12,125 CFM
Voltage380/400 V
Speed1,380 rpm
Input power2,550 W3.42 hp
Noise85 dB(A)

LWAA4D710S-7MKB-05 AC Axial Fan Ø710 mm

Ø710 mm | AC | Max airflow 20,600 m³/h | 85 dB(A)

SKU: LWAA4D710S-7MKB-05 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

LWAA4D710S-7MKB-05 Dimensional drawing — **Dimensional drawing**Dimensions in mm. Confirm against the final approval drawing before machining cut-outs.

LWAA4D710S-7MKB-05 Performance curve (P-Q) — **Performance curve (P-Q)**Static pressure vs. airflow. Curve numbers correspond to supply voltage / speed grades.

Downloads for LWAA4D710S-7MKB-05

PDFDatasheet

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LWAA4D710S-7MKB-05 is a LONGWELL AC Axial Fan from the AC Axial Fans range, impeller Ø710 mm, rated 380/400 V AC, maximum airflow 20,600 m³/h, noise 85 dB(A), input power 2,550 W. The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.

Technical data

Model	LWAA4D710S-7MKB-05
Series	LWAA4D710
Motor type	AC
Phase	3-phase
Rated voltage	380/400 V
Frequency	50 Hz
Current	4.6 A
Input power	2,550 W
Speed	1,380 rpm
Max. airflow	20,600 m³/h
Noise	85 dB(A)
Ambient temperature	-30 ~ 60 °C
Storage temperature	-40 ~ 80℃
Humidity	0 ~ 95 % RH
Altitude	< 1000m
Impeller diameter	Ø710 mm
Impeller material	Cold rolled steel ( Impeller )
Protection class	IP54
Insulation class	F
Bearing	Maintenance-free ball bearings
Duty	S1
Balance grade	G6.3
Vibration standard	JB/T8689
Service life	30,000Hours(L10), At normal supply voltage , 20 °Croom with full speed, 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 LWAA4D710: 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 (Ø710 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
LWAA4D710S-7MKB-05 this model	20,600 m³/h	see curve	1,380 rpm	2,550 W	85 dB(A)	380/400 V
LWAA8D710S-7MKB-04	12,360 m³/h	see curve	700 rpm	700 W	67 dB(A)	380/400 V	View
LWAA8D710S-7MGB-04	12,360 m³/h	see curve	700 rpm	700 W	67 dB(A)	380 V	View
LWAA8D710S-7MEB-02	12,360 m³/h	see curve	700 rpm	700 W	67 dB(A)	380 V	View
LWAA6D710S-5MEW-07	17,510 m³/h	see curve	920 rpm	1,200 W	—	380 V	View
LWAA6D710S-7MKB-03	17,510 m³/h	see curve	900 rpm	1,100 W	75 dB(A)	380/400 V	View
LWAA6D710S-7MGB-03	17,510 m³/h	see curve	900 rpm	1,100 W	75 dB(A)	380 V	View
LWAA6D710S-7MEB-01	17,510 m³/h	see curve	900 rpm	1,100 W	75 dB(A)	380 V	View
LWAA6D710S-5MKB-06	17,510 m³/h	see curve	960 rpm	645 W	72.6 dB(A)	380 V	View
LWAA4D710S-7MGB-05	20,600 m³/h	see curve	1,380 rpm	2,550 W	85 dB(A)	380 V	View
LWEA710TM-168E	26,120 m³/h	373 Pa	1,450 rpm	3,000 W	—	380 V	View