AC Forward Curved Centrifugal Fan — series representative image for LWFA6D500-188NT-01

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

ImpellerØ500 mm19.7 in
Max airflow9,064 m³/h5,335 CFM
Max static pressure916.7 Pa3.68 in. wg
Voltage380 V
Speed900 rpm
Input power4,400 W5.90 hp
Noise75 dB(A)

LWFA6D500-188NT-01 AC Forward Curved Centrifugal Fan Ø500 mm

Ø500 mm | AC | Max airflow 9,064 m³/h | Max static pressure 916.7 Pa | 75 dB(A)

SKU: LWFA6D500-188NT-01 Categories: Centrifugal Fans, Forward Curved Centrifugal Fans, Impeller Ø225–500 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 catalogueAC AC Forward Centrifugal Fan · SKU on PDF p. 14

All files for LWFA6D500-188NT-015 files · direct download

PDFFull product catalogue · model on PDF p. 14 WEBPDimensional drawing WEBPPerformance curve PDFSeries catalogue

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

Proven in projects

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

Get a quote · LWFA6D500-188NT-01

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WhatsApp / Phone+86 183 5827 4663 E-mail an engineersales@longwellfans.com Files for LWFA6D500-188NT-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
How ordering works →

Performance curve (P-Q) LWFA6D500-188NT-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.

Drawing & Curve LWFA6D500-188NT-01

LWFA6D500-188NT-01 Dimensional drawing — **Dimensional drawing**Dimensions in mm. Confirm against the final approval drawing before machining cut-outs.

LWFA6D500-188NT-01 Performance curve (P-Q) — **Performance curve (P-Q)**Static pressure vs. airflow. Curve numbers correspond to supply voltage / speed grades.

Files for LWFA6D500-188NT-01: datasheet, catalogue and drawing PDFs are listed above ↑ · CAD (STEP / DWG) on request — ask an engineer.

Technical description LWFA6D500-188NT-01

LWFA6D500-188NT-01 is a LONGWELL AC Forward Curved Centrifugal Fan from the Forward Curved Centrifugal Fans range, impeller Ø500 mm, rated 380 V AC, maximum airflow 9,064 m³/h, maximum static pressure 916.7 Pa, noise 75 dB(A), input power 4,400 W. The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.

Technical data

Model	LWFA6D500-188NT-01
Series	LWFA6D500
Motor type	AC
Phase	3-phase
Rated voltage	380 V
Frequency	50 Hz
Current	7.6 A
Input power	4,400 W
Speed	900 rpm
Max. airflow	9,064 m³/h
Max. static pressure	916.7 Pa
Noise	75 dB(A)
Ambient temperature	-30 ~ 60 °C
Impeller diameter	Ø500 mm
Rotor diameter	188 mm
Insulation class	B
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 LWFA6D500: 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 LWFA6D500-188NT-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 (Ø500 mm · AC)

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
LWFA6D500-188NT-01 this model	9,064 m³/h	916.7 Pa	900 rpm	4,400 W	75 dB(A)	380 V
LWBA6D500-138NT-03	5,356 m³/h	361 Pa	950 rpm	450 W	63 dB(A)	380 V	View
LWBA6D500-138NT-04	5,817 m³/h	412 Pa	1,050 rpm	550 W	65 dB(A)	380 V	View
LWBA4D500-188NT-01	8,034 m³/h	618 Pa	1,350 rpm	1,000 W	79 dB(A)	380 V	View
LWBA4D500-188NT-05	9,377 m³/h	872 Pa	1,350 rpm	1,300 W	81.9 dB(A)	380 V	View
LWBA4D500-188NT-02	9,785 m³/h	773 Pa	1,400 rpm	1,500 W	80 dB(A)	380 V	View