ImpellerØ400 mm15.7 in
Max airflow2,500 m³/h1,471 CFM
Voltage110-120 V
Speed1,780 rpm
Input power440 W
Noise75 dB(A)

LWDA-400 (16″)U-MWN-01 AC Mixed Flow Fan Ø400 mm

Ø400 mm | AC | Max airflow 2,500 m³/h | 75 dB(A)

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

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WhatsApp / Phone+86 183 5827 4663 E-mail an engineersales@longwellfans.com All files for LWDA-400 (16")U-MWN-01drawings · curves · datasheet

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T/T 30 / 70 · FOB / CIF / DDP
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Drawings & downloads
Technical description

LWDA-400 (16")U-MWN-01 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-400 (16")U-MWN-01 is a LONGWELL AC Mixed Flow Fan from the Mixed Flow Fans range, impeller Ø400 mm, rated 110-120 V AC, maximum airflow 2,500 m³/h, noise 75 dB(A), input power 440 W. The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.

Technical data

Model	LWDA-400 (16")U-MWN-01
Series	LWDA400
Motor type	AC
Phase	1-phase
Rated voltage	110-120 V
Frequency	60 Hz
Input power	440 W
Speed	1,780 rpm
Max. airflow	2,500 m³/h
Noise	75 dB(A)
Impeller diameter	Ø400 mm
Inlet diameter	400mm

Typical applications

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

Series LWDA400: 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 (Ø400 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-400 (16")U-MWN-01 this model	2,500 m³/h	see curve	1,780 rpm	440 W	75 dB(A)	110-120 V
LWA-400(16")U(S)M-01	90 m³/h	see curve	1,350 rpm	170 W	—	110-120 V	View
LWA-400(16")U(S)M-02	110 m³/h	see curve	1,350 rpm	200 W	—	110-120 V	View
LWA-400(16")U(S)M-03	150 m³/h	see curve	2,800 rpm	750 W	—	110-120 V	View
LWEA400S(T)M-068E	2,280 m³/h	see curve	1,450 rpm	370 W	—	220 V	View
LWEAF400-01	2,280 m³/h	see curve	1,450 rpm	370 W	—	220 V	View
LWFA-E-400-01	4,500 m³/h	612 Pa	—	—	68 dB(A)	—	View
LWEA400S(T)M-161E	4,687 m³/h	119 Pa	1,450 rpm	550 W	—	220 V	View
LWMFAF400-01	5,100 m³/h	1,390 Pa	—	—	90 dB(A)	380 V	View
LWFA-E-400-02	5,100 m³/h	610 Pa	—	—	70 dB(A)	—	View
LWMFAF400-02	5,400 m³/h	1,700 Pa	—	—	89 dB(A)	380 V	View
LWDA-400 (16")S-MWN-02	7,100 m³/h	see curve	2,940 rpm	1,300 W	83 dB(A)	220-240 V	View
LWDA-400 (16")S-MWN-04	7,100 m³/h	see curve	2,940 rpm	1,300 W	71 dB(A)	220-240 V	View
LWEA400S(T)M-162E	9,336 m³/h	474 Pa	2,900 rpm	1,100 W	—	220 V	View
LWA-400(16")U(S)M-04	11,000 m³/h	400 Pa	2,800 rpm	1,100 W	—	110-120 V	View