ImpellerØ315 mm12.4 in
Max airflow1,859 m³/h1,094 CFM
Max static pressure294 Pa1.18 in. wg
Voltage230 V
Speed1,390 rpm
Input power116 W
Noise67.4 dB(A)

LWBA4E315-102NS-19 AC Backward Curved Centrifugal Fan Ø315 mm

Ø315 mm | AC | Max airflow 1,859 m³/h | Max static pressure 294 Pa | 67.4 dB(A)

SKU: LWBA4E315-102NS-19 Categories: Backward Curved Centrifugal Fans, Centrifugal Fans, Impeller Ø250–355 mm

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

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)4.7 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.

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WhatsApp / Phone+86 183 5827 4663 E-mail an engineersales@longwellfans.com Datasheet (PDF)electrical & performance data All files for LWBA4E315-102NS-19drawings · curves · datasheet

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 · 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.

LWBA4E315-102NS-19 Dimensional drawing — **Dimensional drawing**Dimensions in mm. Confirm against the final approval drawing before machining cut-outs.

Downloads for LWBA4E315-102NS-19

PDFDatasheet · 1.7 MB

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

LWBA4E315-102NS-19 is a LONGWELL AC Backward Curved Centrifugal Fan from the Backward Curved Centrifugal Fans range, impeller Ø315 mm, rated 230 V AC, maximum airflow 1,859 m³/h, maximum static pressure 294 Pa, noise 67.4 dB(A), input power 116 W. The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.

Technical data

Model	LWBA4E315-102NS-19
Series	LWBA4E315
Motor type	AC
Phase	1-phase
Rated voltage	230 V
Frequency	50 Hz
Current	0.53 A
Input power	116 W
Speed	1,390 rpm
Max. airflow	1,859 m³/h
Max. static pressure	294 Pa
Noise	67.4 dB(A)
Ambient temperature	-40 ~ 65 °C
Impeller diameter	Ø315 mm
Rotor diameter	102
Impeller material	Aluminum Alloy
Protection class	IP54
Insulation class	F
Bearing	Maintenance-free ball bearings
Duty	S1
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 LWBA4E315: 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 (Ø315 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
LWBA4E315-102NS-19 this model	1,859 m³/h	294 Pa	1,390 rpm	116 W	67.4 dB(A)	230 V
LWBA4E315-102NS-11	1,957 m³/h	319 Pa	1,350 rpm	115 W	63 dB(A)	230 V	View
LWBA4D315-102NT-09	1,957 m³/h	309 Pa	1,400 rpm	136 W	63 dB(A)	380 V	View
LWBA4E315-102NS-18	2,079 m³/h	399 Pa	1,550 rpm	153 W	69.6 dB(A)	230 V	View
LWBA4D315-102NT-10	2,163 m³/h	412 Pa	1,560 rpm	175 W	65 dB(A)	380 V	View
LWBA4D315-138NT-15	2,318 m³/h	371 Pa	1,450 rpm	220 W	64 dB(A)	380 V	View
LWBA4E315-138NS-13	2,318 m³/h	371 Pa	1,450 rpm	220 W	64 dB(A)	230 V	View
LWBA4D315-138NT-16	2,781 m³/h	515 Pa	1,650 rpm	300 W	68 dB(A)	380 V	View
LWBA4E315-138NS-14	2,781 m³/h	515 Pa	1,650 rpm	300 W	68 dB(A)	230 V	View
LWFA6D315-138NT-03	2,987 m³/h	249.26 Pa	940 rpm	780 W	68 dB(A)	380 V	View
LWFA6E315-138NS-04	3,605 m³/h	249.26 Pa	870 rpm	720 W	68 dB(A)	220 V	View
LWBA2D315-138NT-12	3,605 m³/h	927 Pa	2,750 rpm	800 W	84 dB(A)	380 V	View
LWBA2D315-188NT-17	4,120 m³/h	1,082 Pa	2,650 rpm	1,300 W	85 dB(A)	380 V	View
LWFA4D315-188NT-01	4,328 m³/h	576.8 Pa	1,360 rpm	2,200 W	80 dB(A)	380 V	View
LWFA4E315-188NS-02	4,429 m³/h	618 Pa	1,360 rpm	2,300 W	80 dB(A)	220 V	View