EC Dual Inlet Forward Centrifugal Blower — series representative image for LWFE3G355-188DS-01

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

ImpellerØ355 mm14.0 in
Max airflow8,799 m³/h5,179 CFM
Max static pressure1,102 Pa4.42 in. wg
Voltage380 V
Speed760 rpm
Input power1,700 W2.28 hp
Noise81 dB(A)

LWFE3G355-188DS-01 EC Dual Inlet Forward Centrifugal Blower Ø355 mm

Ø355 mm | EC | Max airflow 8,799 m³/h | Max static pressure 1,102 Pa | 81 dB(A)

SKU: LWFE3G355-188DS-01 Categories: Centrifugal Fans, Dual Inlet Forward Curved Blowers, Impeller Ø180–355 mm

Direct from LONGWELL
OEM / ODM
Samples in 1–3 days
Production 15–30 days
12-month warranty
CE · ETL · RoHS

PDFRequest datasheetsent by an engineer within 1 business dayPDFFull product catalogueEC EC Dual Inlet Forward Centrifugal Blower · SKU on PDF p. 15

All files for LWFE3G355-188DS-012 files · direct download

PDFFull product catalogue · model on PDF p. 15 WEBPDimensional drawing

CAD models (STEP / DWG) are released on request — see “Engineering files” below. Another format or a non-standard variant? Ask an engineer · download center

Used in

Range hoods Air heaters Fan coil units Appliances All industries →

Proven in projects

AHU & ventilation unit fans CRAH FanGrid retrofit Heat pump fan programme All case studies →

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WhatsApp / Phone+86 183 5827 4663 E-mail an engineersales@longwellfans.com Files for LWFE3G355-188DS-01datasheet · 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
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Performance curve (P-Q) LWFE3G355-188DS-01

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 380 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.

Dimensional drawing LWFE3G355-188DS-01

LWFE3G355-188DS-01 Dimensional drawing — **Dimensional drawing**Dimensions in mm. Confirm against the final approval drawing before machining cut-outs.

Files for LWFE3G355-188DS-01: datasheet, catalogue and drawing PDFs are listed above ↑ · CAD (STEP / DWG) on request — ask an engineer.

Technical description LWFE3G355-188DS-01

LWFE3G355-188DS-01 is a LONGWELL EC Dual Inlet Forward Centrifugal Blower from the Dual Inlet Forward Curved Blowers range, impeller Ø355 mm, rated 380 V EC, maximum airflow 8,799 m³/h, maximum static pressure 1,102 Pa, noise 81 dB(A), input power 1,700 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	LWFE3G355-188DS-01
Series	LWFE3G355
Motor type	EC
Phase	3-phase
Rated voltage	380 V
Frequency	50 Hz
Current	3 A
Input power	1,700 W
Speed	760 rpm
Max. airflow	8,799 m³/h
Max. static pressure	1,102 Pa
Noise	81 dB(A)
Ambient temperature	-30 ~ 50 °C
Impeller diameter	Ø355 mm
Rotor diameter	188 mm
Insulation class	F
Bearing	Maintenance-free ball bearings
Duty	S1

Typical applications

Air handling units (AHU) and rooftop units (RTU)
Data-center CRAH / CRAC units and fan walls
Dust extraction and process ventilation
Fan filter units and air purifiers

Series LWFE3G355: 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.

Product-line certificates

Scans of original documents held by Ningbo Longwell Electric Technology Co., Ltd.: the company ISO management-system certificate and the certificates whose model list covers this model. 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

ETLIntertek Authorization to Mark, control no. 5022563; the covered model ranges are stated on the document.

ETL Authorization to Mark · report 220400508HAN-001 · LWBE3G / LWDE3G / LWFE3G — LONGWELL certificate

PDFETL Authorization to Mark · report 220400508HAN-001 · LWBE3G / LWDE3G / LWFE3G

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

How to order LWFE3G355-188DS-01

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 (Ø355 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
LWFE3G355-188DS-01 this model	8,799 m³/h	1,102 Pa	760 rpm	1,700 W	81 dB(A)	380 V
LWBE3G355-092PS-15	2,472 m³/h	350 Pa	1,400 rpm	120 W	68 dB(A)	230 V	View
LWBE3G355-102PS-17	3,142 m³/h	670 Pa	1,900 rpm	330 W	77 dB(A)	230 V	View
LWBE3G355-102PS-16	3,554 m³/h	618 Pa	1,800 rpm	285 W	76 dB(A)	230 V	View
LWBE3G355-102PS-18	3,915 m³/h	770 Pa	2,050 rpm	423 W	74 dB(A)	230 V	View
LWBE3G355-138PT-20	5,356 m³/h	639 Pa	2,100 rpm	990 W	79 dB(A)	400 V	View
LWBE3G355-138NT-17	5,356 m³/h	639 Pa	2,100 rpm	990 W	79 dB(A)	400 V	View
LWFE3G355-102PT-10	6,180 m³/h	1,751 Pa	2,550 rpm	1,100 W	86 dB(A)	400 V	View
LWBE3G355-138PT-12	6,249 m³/h	1,353 Pa	2,710 rpm	1,100 W	77 dB(A)	400 V	View
LWBE3G355-138NT-27	6,249 m³/h	1,353 Pa	2,710 rpm	1,500 W	77 dB(A)	400 V	View
LWBE3G355-188PT-26	6,756 m³/h	2,524 Pa	3,800 rpm	3,100 W	96 dB(A)	380 V	View
LWBE3G355-188NT-29	6,756 m³/h	2,523.5 Pa	3,800 rpm	3,100 W	96 dB(A)	380 V	View
LWBE3G355-138PT-05	7,045 m³/h	830 Pa	2,700 rpm	1,700 W	81 dB(A)	400 V	View
LWBE3G355-188PT-11	8,034 m³/h	1,545 Pa	3,200 rpm	3,090 W	96 dB(A)	400 V	View
LWBE3G355-188NT-26	8,034 m³/h	1,545 Pa	3,200 rpm	3,090 W	96 dB(A)	400 V	View