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

ImpellerØ400 mm15.7 in
Max airflow4,871 m³/h2,899 CFM
Max static pressure190 Pa0.76 in. wg
Voltage230 V
Speed1,800 rpm
Input power264 W
Noise66 dB(A)

LWAE3G400SS-5MEW-09 EC Axial Fan Ø400 mm

Ø400 mm | EC | Max airflow 4,871 m³/h | Max static pressure 190 Pa | 66 dB(A)

SKU: LWAE3G400SS-5MEW-09 Categories: Axial Fans, EC Axial Fans, Impeller Ø300–450 mm

Direct from LONGWELL
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. 21

All files for LWAE3G400SS-5MEW-095 files · direct download

PDFFull product catalogue · model on PDF p. 21 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

Cross-reference: same impeller size class as Ziehl-Abegg FN040, ebm-papst W3G400 — side-by-side comparison on longwellfans.com. Mounting is confirmed against the LONGWELL drawing before ordering.

Used in

Heat pumps Hybrid heat-pump systems Adiabatic cooling Process cooling All industries →

Proven in projects

Heat pump fan programme Telecom & power cabinet cooling Cold chain supermarket retrofit Dry-type transformer cooling All case studies →

Get a quote · LWAE3G400SS-5MEW-09

Price, curve check and lead time within 1 business day.

Used for this quotation and technical support. If you accept optional measurement, hashed contact details may also help measure advertising. Privacy notice.

WhatsApp / Phone+86 183 5827 4663 E-mail an engineersales@longwellfans.com Files for LWAE3G400SS-5MEW-09datasheet · catalogue · drawings · curves — listed above

Samples 1–3 days · fee credited to your order
Typically 50–200 pcs · ~30 pcs for a first validation order
T/T 30 / 70 · FOB / CIF / DDP
Released to LONGWELL standards · 12-month warranty
How ordering works →

Performance curve (P-Q) LWAE3G400SS-5MEW-09

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 (1 here, rated 230 V). Data version: catalogue curve re-digitised 2026-09-20 (axis-calibrated, cross-checked). 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.

Drawing, Curve & Wiring LWAE3G400SS-5MEW-09

LWAE3G400SS-5MEW-09 Dimensional drawing — **Dimensional drawing**Dimensions in mm. Confirm against the final approval drawing before machining cut-outs.

LWAE3G400SS-5MEW-09 Performance curve (P-Q) — **Performance curve (P-Q)**Static pressure vs. airflow. Curve numbers correspond to supply voltage / speed grades.

LWAE3G400SS-5MEW-09 Wiring diagram — **Wiring diagram**Lead colours and terminal assignment; TK = motor thermal contact.

Files for LWAE3G400SS-5MEW-09: datasheet, catalogue and drawing PDFs are listed above ↑ · CAD (STEP / DWG) on request — ask an engineer.

Technical description LWAE3G400SS-5MEW-09

LWAE3G400SS-5MEW-09 is a LONGWELL EC Axial Fan from the EC Axial Fans range, impeller Ø400 mm, rated 230 V EC, maximum airflow 4,871 m³/h, maximum static pressure 190 Pa, noise 66 dB(A), input power 264 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	LWAE3G400SS-5MEW-09
Series	LWAE3G400
Motor type	EC
Phase	1-phase
Rated voltage	230 V
Voltage range	176 ~ 264 V
Frequency	50 Hz
Current	1.17 A
Input power	264 W
Speed	1,800 rpm
Max. airflow	4,871 m³/h
Max. airflow (CFM)	2,899 CFM
Max. static pressure	190 Pa
Noise	66 dB(A)
Ambient temperature	-25 ~ +60 ℃
Storage temperature	-35 ~ 70℃
Humidity	5 ~ 95 % RH
Altitude	< 1000m
Impeller diameter	Ø400 mm
Impeller material	Cold-rolled sheet ( Impeller )
Protection class	IP54
Insulation class	F
Bearing	Maintenance-free deep groove ball bearings
Duty	S1
Balance grade	G6.3
Vibration standard	JB/T 8689
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 LWAE3G400: 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.

Company certificates

Scans of original documents held by Ningbo Longwell Electric Technology Co., Ltd.: the company ISO 9001 / 14001 / 45001 management-system certificate. Click a scan to open the original.

ISO 9001 / 14001 / 45001Management systems of Ningbo Longwell Electric Technology Co., Ltd. (company certificate).

ISO 9001 / 14001 / 45001 management system certificate — LONGWELL certificate

PDFISO 9001 / 14001 / 45001 management system certificate

Need a Declaration of Conformity for this model and your destination market? Ask us — we arrange additional certification on request.

How to order LWAE3G400SS-5MEW-09

Most first orders follow the same eight steps. Quantities, terms and lead times are confirmed in your quotation.

1SelectFind models by duty point in the selector or by model number, compare on the curve and add them to your RFQ list.
2Engineering checkWithin 1 business day you receive the duty-point check on the curve, price and lead time.
3SamplesStock models ship in 1–3 days.
4Validation supportDatasheets, drawings, wiring diagrams and DoC per model; test reports, CAD and register maps after a short project check or NDA.
5Order & paymentProforma invoice; first orders on T/T 30 / 70.
6Production & release15–30 days at the partner factory that builds your model, then inspected and released to LONGWELL standards with outgoing sampling to AQL 2.5.
7ShippingFOB / CIF / DDP by sea from Ningbo or Shanghai; express and air on EXW / FCA / DAP.
8After-sales12 months standard, extendable to 18–24 months by project agreement; test records retained for 5 years; 8D closed-loop for any issue; annual technical review for framework customers.

See terms, QC and FAQ →

Test & release at LONGWELL

Specified and drawn by LONGWELL; built to LONGWELL drawings by qualified partner factories; inspected and released to LONGWELL standards before shipment.

See test and release photos (8)

LONGWELL Semi-anechoic chamber — Semi-anechoic chamber

LONGWELL Test laboratory — Test laboratory

Test labs and all certificate scans →

Alternatives with the same impeller (Ø400 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
LWAE3G400SS-5MEW-09 this model	4,871 m³/h	190 Pa	1,800 rpm	264 W	66 dB(A)	230 V
LWAE3G400ST-5MNW-02	4,944 m³/h	208 Pa	1,600 rpm	315 W	69 dB(A)	220/230 V	View
LWAE3G400ST-5MGW-06	4,944 m³/h	208 Pa	1,600 rpm	315 W	69 dB(A)	220/230 V	View
LWAE3G400ST-5MEW-04	4,944 m³/h	208 Pa	1,600 rpm	315 W	69 dB(A)	220/230 V	View
LWAE3G400SS-5MNW-01	4,944 m³/h	208 Pa	1,600 rpm	315 W	69 dB(A)	220 V	View
LWAE3G400SS-5MGW-05	4,944 m³/h	208 Pa	1,600 rpm	315 W	69 dB(A)	220/230 V	View
LWAE3G400SS-5MEW-03	4,944 m³/h	208 Pa	1,600 rpm	315 W	69 dB(A)	220/230 V	View
LWAE3G400ST-5MEW-08	5,562 m³/h	258 Pa	1,600 rpm	360 W	67 dB(A)	220/230 V	View
LWAE3G400SS-5MEW-07	5,562 m³/h	258 Pa	1,600 rpm	360 W	67 dB(A)	220/230 V	View