ImpellerØ250 mm9.8 in
Max airflow1,751 m³/h1,031 CFM
Max static pressure288 Pa1.16 in. wg
Voltage310 V
Speed3,150 rpm
Input power135 W
Noise69 dB(A)

LWAD3G250ZB-7MEW-06 DC Axial Fan Ø250 mm

Ø250 mm | DC | Max airflow 1,751 m³/h | Max static pressure 288 Pa | 69 dB(A)

SKU: LWAD3G250ZB-7MEW-06 Categories: Axial Fans, DC Axial Fans

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18-month warranty
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WhatsApp / Phone+86 183 5827 4663 E-mail an engineersales@longwellfans.com All files for LWAD3G250ZB-7MEW-06drawings · 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.

LWAD3G250ZB-7MEW-06 Dimensional drawing — **Dimensional drawing**Dimensions in mm. Confirm against the final approval drawing before machining cut-outs.

LWAD3G250ZB-7MEW-06 Performance curve (P-Q) — **Performance curve (P-Q)**Static pressure vs. airflow. Curve numbers correspond to supply voltage / speed grades.

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

LWAD3G250ZB-7MEW-06 is a LONGWELL DC Axial Fan from the DC Axial Fans range, impeller Ø250 mm, rated 310 V DC, maximum airflow 1,751 m³/h, maximum static pressure 288 Pa, noise 69 dB(A), input power 135 W. The low-voltage brushless DC motor suits battery-powered equipment and electronics cooling with speed control on demand.

Technical data

Model	LWAD3G250ZB-7MEW-06
Series	LWAD3G250
Motor type	DC
Rated voltage	310 V
Frequency	50 Hz
Current	0.44 A
Input power	135 W
Speed	3,150 rpm
Max. airflow	1,751 m³/h
Max. static pressure	288 Pa
Noise	69 dB(A)
Ambient temperature	-25 ~ 60 °C
Impeller diameter	Ø250 mm
Impeller material	Metal sheet
Protection class	IP44
Insulation class	B
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 LWAD3G250: 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 (Ø250 mm · DC)

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
LWAD3G250ZB-7MEW-06 this model	1,751 m³/h	288 Pa	3,150 rpm	135 W	69 dB(A)	310 V
LWAD3G250ZB-7MKW-08	1,751 m³/h	288 Pa	3,150 rpm	135 W	69 dB(A)	310 V	View
LWAD3G250ZS-7MKW-07	1,751 m³/h	288 Pa	3,150 rpm	135 W	69 dB(A)	310 V	View
LWAD3G250ZS-7MEW-05	1,751 m³/h	288 Pa	3,150 rpm	135 W	69 dB(A)	310 V	View
LWAD3G250ZS-7MNW-03	1,751 m³/h	288 Pa	3,150 rpm	135 W	69 dB(A)	310 V	View
LWAD3G250ZB-7MNW-04	1,751 m³/h	288 Pa	3,150 rpm	135 W	69 dB(A)	310 V	View
LWAD3G250MS-7MKB-01	1,957 m³/h	227 Pa	2,780 rpm	105 W	69 dB(A)	24 V	View
LWAD3G250HS-7MKB-02	1,957 m³/h	227 Pa	2,780 rpm	105 W	69 dB(A)	48 V	View