ImpellerØ280 mm11.0 in
Max airflow1,700 m³/h1,000 CFM
Max static pressure721 Pa2.89 in. wg
Voltage230 V
Speed2,450 rpm
Input power230 W
Noise79 dB(A)

LWBA2E280-092NS-01 AC Backward Curved Centrifugal Fan Ø280 mm

Ø280 mm | AC | Max airflow 1,700 m³/h | Max static pressure 721 Pa | 79 dB(A)

SKU: LWBA2E280-092NS-01 Categories: Backward Curved Centrifugal Fans, Centrifugal Fans, Impeller Ø250–355 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 data

All files for LWBA2E280-092NS-015 files · direct download

WEBPDimensional drawing WEBPPerformance curve WEBPWiring diagram DOCXDatasheet

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: AHU & ventilation unit fans · CRAH FanGrid retrofit · Heat pump fan programme — all case studies on longwellfans.com

Typical applications: Air conditioning · Air handling units · FanGrid arrays · FFU / EFU — all industries

Engineering files (on request)

CAD files exist for this model and can be released for assembly checks in SolidWorks / CATIA / Creo / Inventor.

STP3D model (STEP)5.7 MBRequest →

CAD models contain the blade geometry and are not downloadable. Tell us the project; an engineer sends the file after a short check, normally within 1 business day.

Get a quote · LWBA2E280-092NS-01

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

Used only for this quotation and technical support.

WhatsApp / Phone+86 183 5827 4663 E-mail an engineersales@longwellfans.com Files for LWBA2E280-092NS-01datasheet · 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 (1 here, rated 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.

LWBA2E280-092NS-01 Dimensional drawing — **Dimensional drawing**Dimensions in mm. Confirm against the final approval drawing before machining cut-outs.

LWBA2E280-092NS-01 Performance curve (P-Q) — **Performance curve (P-Q)**Static pressure vs. airflow. Curve numbers correspond to supply voltage / speed grades.

LWBA2E280-092NS-01 Wiring diagram — **Wiring diagram**Lead colours and terminal assignment; TK = motor thermal contact.

Downloads for LWBA2E280-092NS-01

PDFDatasheet DOCXDatasheet · 563 KB

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

LWBA2E280-092NS-01 is a LONGWELL AC Backward Curved Centrifugal Fan from the Backward Curved Centrifugal Fans range, impeller Ø280 mm, rated 230 V AC, maximum airflow 1,700 m³/h, maximum static pressure 721 Pa, noise 79 dB(A), input power 230 W. The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.

Technical data

Model	LWBA2E280-092NS-01
Series	LWBA2E280
Motor type	AC
Phase	1-phase
Rated voltage	230 V
Frequency	50 Hz
Current	1.1 A
Input power	230 W
Speed	2,450 rpm
Max. airflow	1,700 m³/h
Max. airflow (CFM)	1,000 CFM
Max. static pressure	721 Pa
Noise	79 dB(A)
Ambient temperature	-40 ~ 60 °C
Storage temperature	-40 ~ 80℃
Humidity	0 ~ 95 % RH
Altitude	< 1000m
Impeller diameter	Ø280 mm
Rotor diameter	92 mm
Impeller material	Galvanized sheet ( Impeller )
Protection class	IP54
Insulation class	F
Bearing	Maintenance-free ball bearings
Duty	S1
Balance grade	G6.3
Vibration standard	JB/T 8689
Service life	30,000Hours(L10), At 40 °Croom, humidity 15%~65%RH
Rotation	Clockwise,seen on rotor

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 LWBA2E280: 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 (Ø280 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
LWBA2E280-092NS-01 this model	1,700 m³/h	721 Pa	2,450 rpm	230 W	79 dB(A)	230 V
LWBA4E280-092NS-03	1,267 m³/h	216 Pa	1,350 rpm	80 W	63 dB(A)	230 V	View
LWBA4E280-092NS-04	1,442 m³/h	288 Pa	1,500 rpm	100 W	66 dB(A)	230 V	View
LWBA2D280-092NT-02	1,700 m³/h	721 Pa	2,500 rpm	200 W	79 dB(A)	380 V	View
LWBA2D280-102NT-06	1,833 m³/h	773 Pa	2,650 rpm	250 W	80 dB(A)	380 V	View
LWBA2E280-102NS-05	1,833 m³/h	773 Pa	2,650 rpm	250 W	80 dB(A)	230 V	View
LWBA2D280-102NT-08	2,163 m³/h	773 Pa	2,700 rpm	330 W	80 dB(A)	380 V	View
LWBA2E280-102NS-07	2,163 m³/h	773 Pa	2,700 rpm	330 W	80 dB(A)	230 V	View
LWFA4E280-188NS-02	2,284 m³/h	391.4 Pa	1,360 rpm	1,600 W	77 dB(A)	220 V	View
LWFA6E280-138NS-04	2,318 m³/h	247.2 Pa	900 rpm	450 W	65 dB(A)	220 V	View
LWFA6D280-138NT-03	2,318 m³/h	247.2 Pa	900 rpm	450 W	65 dB(A)	380 V	View
LWBA2D280-138NT-09	2,678 m³/h	917 Pa	2,750 rpm	500 W	78 dB(A)	380 V	View
LWBA2D280-138NT-10	2,833 m³/h	927 Pa	2,900 rpm	680 W	80 dB(A)	380 V	View
LWFA4D280-188NT-01	3,502 m³/h	463.5 Pa	1,360 rpm	1,700 W	77 dB(A)	380 V	View
LWFA4D280-188ST-01	3,811 m³/h	463.5 Pa	1,400 rpm	1,400 W	82 dB(A)	380 V	View