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LWDE-400 (16")S-MWN-04 product photo
  • ImpellerØ400 mm
  • Max airflow6,850 m³/h
  • Voltage220-240 V
  • Speed2,800 rpm
  • Input power1,200 W
  • Noise70 dB(A)

LWDE-400 (16″)S-MWN-04 EC Ultra Silent Metal Duct Fan Ø400 mm

Ø400 mm | EC | Max airflow 6,850 m³/h | 70 dB(A)

SKU: LWDE-400 (16")S-MWN-04 Categories: , ,
  • Factory direct
  • OEM / ODM
  • Samples in 1–3 days
  • Production 15–30 days
  • 18-month warranty
  • CE · ETL · RoHS
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Dimensional drawingDimensions in mm. Confirm against the final approval drawing before machining cut-outs.
LWDE-400 (16")S-MWN-04 Dimensional drawing

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

LWDE-400 (16")S-MWN-04 is a LONGWELL EC Ultra Silent Metal Duct Fan from the Ultra Silent Duct Fans range, impeller Ø400 mm, rated 220-240 V EC, maximum airflow 6,850 m³/h, noise 70 dB(A), input power 1,200 W. The EC motor integrates the drive electronics: stepless speed control by 0–10 V or PWM signal, speed feedback and high efficiency at part load.

Technical data

Model LWDE-400 (16")S-MWN-04
Series LWDE400
Motor type EC
Phase 1-phase
Rated voltage 220-240 V
Frequency 50 Hz
Input power 1,200 W
Speed 2,800 rpm
Max. airflow 6,850 m³/h
Noise 70 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 LWDE400: 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 · EC)

Same impeller, different speed grade, power or wiring. Step up for more airflow, step down for lower noise.

ModelMax airflowMax static pressureSpeedPowerNoiseVoltage
LWDE-400 (16")S-MWN-04 this model 6,850 m³/hsee curve 2,800 rpm1,200 W70 dB(A)220-240 V
LWBE3G400-102PS-11 3,554 m³/h546 Pa 1,460 rpm300 W76 dB(A)230 V View
LWBE3G400-102NS-16 3,554 m³/h546 Pa 1,460 rpm300 W76 dB(A)230 V View
LWBE3G400-102PS-01 3,914 m³/h556 Pa 1,430 rpm330 W70 dB(A)230 V View
LWDE-400 (16")U-MWN-01 4,032 m³/hsee curve 2,800 rpm1,200 W81 dB(A)110-120 V View
LWDE-400 (16")U-MWN-03 4,032 m³/hsee curve 2,800 rpm1,200 W70 dB(A)110-120 V View
LWBE3G400-102PS-09 4,463 m³/h420 Pa 1,250 rpm297 W—230 V View
LWBE3G400-102NS-15 5,476 m³/h600 Pa 1,520 rpm500 W68 dB(A)230 V View
LWBE3G400-102PS-10 5,615 m³/h622 Pa 1,520 rpm500 W—230 V View
LWFE3G400-102PS-02 6,489 m³/h978.5 Pa 1,800 rpm700 W85 dB(A)230 V View
LWDE-400 (16")S-MWN-02 6,850 m³/hsee curve 2,800 rpm1,200 W81 dB(A)220-240 V View
LWBE3G400-138PT-04 7,459 m³/h840 Pa 2,060 rpm1,100 W77 dB(A)400 V View
LWBE3G400-138NT-12 7,459 m³/h840 Pa 1,100 rpm1,480 W71 dB(A)400 V View
LWBE3G400-188PT-07 9,682 m³/h1,627 Pa 2,650 rpm2,060 W84 dB(A)400 V View
LWBE3G400-188NT-17 9,682 m³/h1,627 Pa 2,650 rpm2,060 W84 dB(A)400 V View

Not sure which one? Send us the duty point (airflow / static pressure / noise limit) — use the selector or ask an engineer.

Related products

Other models in the LWDE400 seriesSame impeller, different speed grade or wiring

LWDE-400 (16")S-MWN-04 product photoLWDE-400 (16")U-MWN-03Ø400 mm · 4,032 m³/h · ECsame series混流风机LWDE-400 (16")U-MWN-01Ø400 mm · 4,032 m³/h · ECsame series混流风机LWDE-400 (16")S-MWN-02Ø400 mm · 6,850 m³/h · ECsame series

Adjacent sizesOne size up when airflow is short, one size down when it is too much

LWDE-400 (16")S-MWN-04 product photoLWDE-355 (14")U-MWN-03Ø355 mm · 3,467 m³/h · ECadjacent sizeLWDA-355 (14")S-MWN-04 product photoLWDA-355 (14")S-MWN-04Ø355 mm · 6,450 m³/h · ACadjacent sizeLWDE-400 (16")S-MWN-04 product photoLWDE-355 (14")S-MWN-04Ø355 mm · 6,200 m³/h · ECadjacent sizeLWDA-355 (14")U-MWN-03 product photoLWDA-355 (14")U-MWN-03Ø355 mm · 2,130 m³/h · ACadjacent size混流风机LWDE-350 (14")S-MWN-02Ø350 mm · 6,200 m³/h · ECadjacent size混流风机LWDE-350 (14")U-MWN-01Ø350 mm · 3,467 m³/h · ECadjacent size

Alternatives at a similar dutySimilar airflow, different construction or motor platform

LWAA4E500B-5MKB-12 product photoLWAA4E500B-5MKB-12Ø500 mm · 6,850 m³/h · ACsimilar dutyLWEA500S(T)M-069E product photoLWA-500S(T)M-03EØ490 mm · 6,800 m³/h · 185 Pa · ACsimilar dutyLWWAF-5A-0.37-4P-1-0026,920 m³/h · ACsimilar dutyLONGWELL product videoLWBE3G355-188NT-29Ø355 mm · 6,756 m³/h · 2,523.5 Pa · ECsimilar dutyLWBE3G355-188PT-26 product photoLWBE3G355-188PT-26Ø355 mm · 6,756 m³/h · 2,524 Pa · ECsimilar duty

See all Impeller Ø200–400 mm  ·  select by duty point

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