ImpellerØ100 mm3.9 in
Max airflow140 m³/h82 CFM
Max static pressure58 Pa0.23 in. wg
Voltage220 V
Speed2,800 rpm
Input power20 W
Noise48 dB(A)

LWDA-100(4″)S-MWN-08 Duct Booster Fan Ø100 mm

Ø100 mm | AC | Max airflow 140 m³/h | Max static pressure 58 Pa | 48 dB(A)

SKU: LWDA-100(4")S-MWN-08 Category: Inline Duct Fans

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

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WhatsApp / Phone+86 183 5827 4663 E-mail an engineersales@longwellfans.com All files for LWDA-100(4")S-MWN-08drawings · curves · datasheet

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Drawings & downloads
Technical description

LWDA-100(4")S-MWN-08 Dimensional drawing — **Dimensional drawing**Dimensions in mm. Confirm against the final approval drawing before machining cut-outs.

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

LWDA-100(4")S-MWN-08 is a LONGWELL Duct Booster Fan from the Inline Duct Fans range, impeller Ø100 mm, rated 220 V AC, maximum airflow 140 m³/h, maximum static pressure 58 Pa, noise 48 dB(A), input power 20 W. The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.

Technical data

Model	LWDA-100(4")S-MWN-08
Series	LWDA100
Motor type	AC
Phase	1-phase
Rated voltage	220 V
Frequency	50 Hz
Input power	20 W
Speed	2,800 rpm
Max. airflow	140 m³/h
Max. static pressure	58 Pa
Noise	48 dB(A)
Impeller diameter	Ø100 mm
Inlet diameter	100mm

Typical applications

Residential and commercial fresh-air systems
Kitchen and bathroom exhaust
Local pressurisation and booster duty
Hotel and office ventilation

Series LWDA100: 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 (Ø100 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
LWDA-100(4")S-MWN-08 this model	140 m³/h	58 Pa	2,800 rpm	20 W	48 dB(A)	220 V
LWDA-100(4")U-PWN-17	205 m³/h	135 Pa	1,900 rpm	34 W	24 dB(A)	115 V	View
LWDA-100(4")S-PWN-15	205 m³/h	135 Pa	1,900 rpm	25 W	24 dB(A)	230 V	View
LWDA-100S-MBN-14	242 m³/h	326 Pa	2,450 rpm	60 W	59 dB(A)	230 V	View
LWDA-100S-PWN-15	319 m³/h	185 Pa	2,550 rpm	40 W	25 dB(A)	230 V	View
LWDA-100(4")U-PWN-16	325 m³/h	163 Pa	2,360 rpm	34 W	30 dB(A)	115 V	View
LWDA-100(4")S-PWN-14	325 m³/h	163 Pa	2,360 rpm	36 W	30 dB(A)	230 V	View
LWDA-100 (4")U-PWN-01	410 m³/h	see curve	3,350 rpm	41 W	52 dB(A)	110-120 V	View
LWDA-100 (4")U-MWN-03	410 m³/h	see curve	3,350 rpm	41 W	51 dB(A)	110-120 V	View
LWDA-100 (4")S-PWN-02	605 m³/h	168 Pa	2,900 rpm	41 W	51 dB(A)	220-240 V	View
LWDA-100 (4")S-MWN-04	605 m³/h	see curve	2,900 rpm	41 W	49 dB(A)	220-240 V	View