ImpellerØ225 mm8.9 in
Max airflow1,276 m³/h751 CFM
Max static pressure756 Pa3.04 in. wg
Voltage115 V
Speed2,905 rpm
Input power178 W
Noise71.3 dB(A)

LWBA2E225-092NU-05 AC Backward Curved Centrifugal Fan Ø225 mm

Ø225 mm | AC | Max airflow 1,276 m³/h | Max static pressure 756 Pa | 71.3 dB(A)

SKU: LWBA2E225-092NU-05 Categories: Backward Curved Centrifugal Fans, Centrifugal Fans, Impeller Ø133–225 mm

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

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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)11 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.

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WhatsApp / Phone+86 183 5827 4663 E-mail an engineersales@longwellfans.com Datasheet (PDF)electrical & performance data All files for LWBA2E225-092NU-05drawings · curves · datasheet

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From ~30 pcs for a first validation order
T/T 30 / 70 · FOB / CIF / DDP
100% tested · 18-month warranty
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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. 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.

LWBA2E225-092NU-05 Dimensional drawing — **Dimensional drawing**Dimensions in mm. Confirm against the final approval drawing before machining cut-outs.

LWBA2E225-092NU-05 Performance curve (P-Q) — **Performance curve (P-Q)**Static pressure vs. airflow. Curve numbers correspond to supply voltage / speed grades.

LWBA2E225-092NU-05 Wiring diagram — **Wiring diagram**Lead colours and terminal assignment; TK = motor thermal contact.

Downloads for LWBA2E225-092NU-05

PDFDatasheet

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

LWBA2E225-092NU-05 is a LONGWELL AC Backward Curved Centrifugal Fan from the Backward Curved Centrifugal Fans range, impeller Ø225 mm, rated 115 V AC, maximum airflow 1,276 m³/h, maximum static pressure 756 Pa, noise 71.3 dB(A), input power 178 W. The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.

Technical data

Model	LWBA2E225-092NU-05
Series	LWBA2E225
Motor type	AC
Phase	1-phase
Rated voltage	115 V
Frequency	60 Hz
Current	0.77 A
Input power	178 W
Speed	2,905 rpm
Max. airflow	1,276 m³/h
Max. static pressure	756 Pa
Noise	71.3 dB(A)
Ambient temperature	-40 ~ 65 °C
Storage temperature	-40 ~ 80℃
Humidity	0 ~ 85 % RH
Altitude	< 1000m
Impeller diameter	Ø225 mm
Rotor diameter	92
Impeller material	PA6+GF ( Impeller )
Protection class	IP44
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 LWBA2E225: 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 (Ø225 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
LWBA2E225-092NU-05 this model	1,276 m³/h	756 Pa	2,905 rpm	178 W	71.3 dB(A)	115 V
LWBA2D225-092NT-03	618 m³/h	165 Pa	1,420 rpm	45 W	54 dB(A)	380 V	View
LWBA4D225-092NT-04	690 m³/h	216 Pa	1,650 rpm	47 W	60 dB(A)	380 V	View
LWBA2E225-092NS-13	1,133 m³/h	546 Pa	2,630 rpm	125 W	74 dB(A)	230 V	View
LWBA2D225-092NT-11	1,133 m³/h	546 Pa	2,600 rpm	135 W	74 dB(A)	380 V	View
LWBA2E225-092NS-09	1,133 m³/h	546 Pa	2,600 rpm	135 W	74 dB(A)	230 V	View
LWBA2D225-092NT-08	1,139 m³/h	588 Pa	2,645 rpm	119 W	68.6 dB(A)	380 V	View
LWBA2E225-092NS-06	1,166 m³/h	578 Pa	2,655 rpm	129 W	68.6 dB(A)	230 V	View
LWBA2D225-092NT-12	1,257 m³/h	695 Pa	2,900 rpm	180 W	76 dB(A)	380 V	View
LWBA2E225-092NS-10	1,257 m³/h	695 Pa	2,900 rpm	180 W	76 dB(A)	230 V	View
LWBA2D225-092NT-07	1,318 m³/h	788 Pa	3,095 rpm	190 W	71.8 dB(A)	380 V	View
LWFA6D225-138NT-03	1,339 m³/h	236.9 Pa	930 rpm	300 W	59 dB(A)	380 V	View
LWFA4D225-138NT-01	1,648 m³/h	288.4 Pa	1,300 rpm	490 W	65 dB(A)	380 V	View
LWFA4E225-138NS-02	1,761 m³/h	288.4 Pa	1,320 rpm	510 W	65 dB(A)	230 V	View
LWFA-E-225-01	2,300 m³/h	325 Pa	—	—	65 dB(A)	220 V	View