ImpellerØ250 mm9.8 in
Max airflow1,751 m³/h1,031 CFM
Max static pressure290 Pa1.16 in. wg
Voltage220/230 V
Speed3,150 rpm
Input power135 W
Noise69 dB(A)

LWAE3G250SS-7MGW-05 EC Axial Fan Ø250 mm

Ø250 mm | EC | Max airflow 1,751 m³/h | Max static pressure 290 Pa | 69 dB(A)

SKU: LWAE3G250SS-7MGW-05 Categories: Axial Fans, EC Axial Fans, Impeller Ø200–250 mm

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18-month warranty
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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.

LWAE3G250SS-7MGW-05 Dimensional drawing — **Dimensional drawing**Dimensions in mm. Confirm against the final approval drawing before machining cut-outs.

LWAE3G250SS-7MGW-05 Performance curve (P-Q) — **Performance curve (P-Q)**Static pressure vs. airflow. Curve numbers correspond to supply voltage / speed grades.

LWAE3G250SS-7MGW-05 Wiring diagram — **Wiring diagram**Lead colours and terminal assignment; TK = motor thermal contact.

Downloads for LWAE3G250SS-7MGW-05

PDFDatasheet

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LWAE3G250SS-7MGW-05 is a LONGWELL EC Axial Fan from the EC Axial Fans range, impeller Ø250 mm, rated 220/230 V EC, maximum airflow 1,751 m³/h, maximum static pressure 290 Pa, noise 69 dB(A), input power 135 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	LWAE3G250SS-7MGW-05
Series	LWAE3G250
Motor type	EC
Phase	1-phase
Rated voltage	220/230 V
Voltage range	176 ~ 264 V
Frequency	50 Hz
Current	0.9 A
Input power	135 W
Speed	3,150 rpm
Max. airflow	1,751 m³/h
Max. static pressure	290 Pa
Noise	69 dB(A)
Ambient temperature	-25 ~ +60 ℃
Storage temperature	-25 ~ 70℃
Humidity	0 ~ 85 % RH
Altitude	< 1000m
Impeller diameter	Ø250 mm
Impeller material	Sheet steel ( Impeller )
Protection class	IP54
Insulation class	B
Bearing	Maintenance-free ball bearings
Duty	S1
Balance grade	G6.3
Vibration standard	JB/T8689
Service life	40,000Hours(L10), At 40 °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 LWAE3G250: 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 · 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
LWAE3G250SS-7MGW-05 this model	1,751 m³/h	290 Pa	3,150 rpm	135 W	69 dB(A)	220/230 V
LWAE3G250SS-7PNW-07	1,627 m³/h	214 Pa	2,480 rpm	85 W	60 dB(A)	220/230 V	View
LWAE3G250SS-7PKW-08	1,627 m³/h	214 Pa	2,480 rpm	85 W	60 dB(A)	220/230 V	View
LWAE3G250ST-7MNW-02	1,751 m³/h	290 Pa	3,150 rpm	135 W	69 dB(A)	220/230 V	View
LWAE3G250ST-7MGW-06	1,751 m³/h	290 Pa	3,150 rpm	135 W	69 dB(A)	220/230 V	View
LWAE3G250ST-7MEW-04	1,751 m³/h	290 Pa	3,150 rpm	135 W	69 dB(A)	220/230 V	View
LWAE3G250SS-7MNW-01	1,751 m³/h	290 Pa	3,150 rpm	135 W	69 dB(A)	220/230 V	View
LWAE3G250SS-7MEW-03	1,751 m³/h	290 Pa	3,150 rpm	170 W	69 dB(A)	220/230 V	View
LWAE3G250SS-7PNW-09	1,916 m³/h	1,140 Pa	2,950 rpm	115 W	60 dB(A)	220/230 V	View
LWAE3G250SS-7PKW-10	1,916 m³/h	201 Pa	2,950 rpm	115 W	68 dB(A)	220/230 V	View