ImpellerØ280 mm11.0 in
Max airflow2,318 m³/h1,364 CFM
Max static pressure247.2 Pa0.99 in. wg
Voltage220 V
Speed900 rpm
Input power450 W
Noise65 dB(A)

LWFA6E280-138NS-04 AC Forward Curved Centrifugal Fan Ø280 mm

Ø280 mm | AC | Max airflow 2,318 m³/h | Max static pressure 247.2 Pa | 65 dB(A)

SKU: LWFA6E280-138NS-04 Categories: Centrifugal Fans, Forward Curved Centrifugal Fans, Impeller Ø225–500 mm

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18-month warranty
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WhatsApp / Phone+86 183 5827 4663 E-mail an engineersales@longwellfans.com All files for LWFA6E280-138NS-04drawings · curves · datasheet

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Drawings & downloads
Technical description

LWFA6E280-138NS-04 Dimensional drawing — **Dimensional drawing**Dimensions in mm. Confirm against the final approval drawing before machining cut-outs.

LWFA6E280-138NS-04 Performance curve (P-Q) — **Performance curve (P-Q)**Static pressure vs. airflow. Curve numbers correspond to supply voltage / speed grades.

Series catalogue

PDFLWFA LWFA Series Direct Driven centrifugal blower · 1.4 MB

Covers the whole series, not only this model.

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

LWFA6E280-138NS-04 is a LONGWELL AC Forward Curved Centrifugal Fan from the Forward Curved Centrifugal Fans range, impeller Ø280 mm, rated 220 V AC, maximum airflow 2,318 m³/h, maximum static pressure 247.2 Pa, noise 65 dB(A), input power 450 W. The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.

Technical data

Model	LWFA6E280-138NS-04
Series	LWFA6E280
Motor type	AC
Phase	1-phase
Rated voltage	220 V
Frequency	50 Hz
Current	2.5 A
Input power	450 W
Speed	900 rpm
Max. airflow	2,318 m³/h
Max. static pressure	247.2 Pa
Noise	65 dB(A)
Ambient temperature	-30 ~ 60 °C
Impeller diameter	Ø280 mm
Rotor diameter	138
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 LWFA6E280: 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
LWFA6E280-138NS-04 this model	2,318 m³/h	247.2 Pa	900 rpm	450 W	65 dB(A)	220 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
LWBA2E280-092NS-01	1,700 m³/h	721 Pa	2,450 rpm	230 W	79 dB(A)	230 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
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