Representative image of the series — dimensions and configuration of this model are given in the drawing and data table below.

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-7MNW-01 EC Axial Fan Ø250 mm

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

SKU: LWAE3G250SS-7MNW-01 Categories: Axial Fans, EC Axial Fans, Impeller Ø200–250 mm

Factory direct
OEM / ODM
Samples in 1–3 days
Production 15–30 days
12-month warranty
CE · RoHS · ETL on request

PDFDatasheet (PDF)electrical & performance dataPDFFull product catalogueEC EC Axial fans · SKU on PDF p. 13

All files for LWAE3G250SS-7MNW-015 files · direct download

PDFFull product catalogue · model on PDF p. 13 WEBPDimensional drawing WEBPPerformance curve WEBPWiring diagram

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

Cross-reference: same impeller size class as ebm-papst W3G250 — side-by-side comparison on longwellfans.com. Mounting is confirmed against the LONGWELL drawing before ordering.

Typical applications: Heat pumps · Hybrid heat-pump systems · Adiabatic cooling · Process cooling — all industries

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WhatsApp / Phone+86 183 5827 4663 E-mail an engineersales@longwellfans.com Files for LWAE3G250SS-7MNW-01datasheet · catalogue · drawings · curves — listed above

Samples 1–3 days · fee credited to your order
From ~30 pcs for a first validation order
T/T 30 / 70 · FOB / CIF / DDP
100% tested · 12-month warranty
How ordering works →

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 (2 here, rated 220/230 V). Data version: catalogue 2026-08. 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.

Longwell EC Axial Fan – Energy-Efficient, Embrace a Fresh Future | LWAE3G250SS-7MKW-11 · open in video library

LWAE3G250 Series Axial Fan: Efficient DC Ventilation Solution | LWAE3G250SS-7MKW-11 · open in video library

LWAE3G250SS-7MNW-01 Dimensional drawing — **Dimensional drawing**Dimensions in mm. Confirm against the final approval drawing before machining cut-outs.

LWAE3G250SS-7MNW-01 Performance curve (P-Q) — **Performance curve (P-Q)**Static pressure vs. airflow. Curve numbers correspond to supply voltage / speed grades.

LWAE3G250SS-7MNW-01 Wiring diagram — **Wiring diagram**Lead colours and terminal assignment; TK = motor thermal contact.

Downloads for LWAE3G250SS-7MNW-01

PDFDatasheet PDFFull product catalogue · EC EC Axial fans · model on PDF p. 13 · 31.5 MB

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

LWAE3G250SS-7MNW-01 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-7MNW-01
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-7MNW-01 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-7MGW-05	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