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LWDE-400 (16")S-MWN-04 product photo
  • ImpellerØ250 mm
  • Max airflow2,075 m³/h
  • Voltage220-240 V
  • Speed3,000 rpm
  • Input power195 W
  • Noise62 dB(A)

LWDE-250 (10″)S-MWN-04 EC Ultra Silent Metal Duct Fan Ø250 mm

Ø250 mm | EC | Max airflow 2,075 m³/h | 62 dB(A)

SKU: LWDE-250 (10")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-250 (10")S-MWN-04 Dimensional drawing

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

LWDE-250 (10")S-MWN-04 is a LONGWELL EC Ultra Silent Metal Duct Fan from the Ultra Silent Duct Fans range, impeller Ø250 mm, rated 220-240 V EC, maximum airflow 2,075 m³/h, noise 62 dB(A), input power 195 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-250 (10")S-MWN-04
Series LWDE250
Motor type EC
Phase 1-phase
Rated voltage 220-240 V
Frequency 50 Hz
Input power 195 W
Speed 3,000 rpm
Max. airflow 2,075 m³/h
Noise 62 dB(A)
Impeller diameter Ø250 mm
Inlet diameter 250mm

Typical applications

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

Series LWDE250: 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 (Ø250 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-250 (10")S-MWN-04 this model 2,075 m³/hsee curve 3,000 rpm195 W62 dB(A)220-240 V
LWBE3G250-072PS-15 1,215 m³/h391 Pa 2,150 rpm90 W68 dB(A)230 V View
LWDE-250 (10")U-MWN-01 1,219 m³/hsee curve 3,000 rpm195 W69 dB(A)110-120 V View
LWDE-250 (10")U-MWN-03 1,219 m³/hsee curve 3,000 rpm195 W62 dB(A)110-120 V View
LWDE-250S-MBN-07 1,231 m³/h1,030 Pa 2,700 rpm170 W71 dB(A)230 V View
LWBE3G250-092PS-21 1,421 m³/h556 Pa 2,600 rpm170 W69 dB(A)230 V View
LWBE3G250-072PS-17 1,421 m³/h639 Pa 2,760 rpm140 W77 dB(A)230 V View
LWBE3G250-102PS-22 1,524 m³/h773 Pa 3,150 rpm240 W78 dB(A)230 V View
LWBE3G250-092PS-16 1,531 m³/h785 Pa 3,010 rpm140 W72.1 dB(A)230 V View
LWBE3G250-102PS-24 1,700 m³/h1,082 Pa 3,500 rpm370 W82 dB(A)230 V View
LWBE3G250-092PS-20 1,730 m³/h525 Pa 2,500 rpm145 W74 dB(A)230 V View
LWBE3G250-102PS-23 1,751 m³/h824 Pa 3,170 rpm270 W84 dB(A)230 V View
LWDE-250 (10")S-MWN-02 2,075 m³/hsee curve 3,000 rpm195 W69 dB(A)220-240 V View
LWFE3G250-102PS-07 3,038.5 m³/h1,442 Pa 4,100 rpm750 W93 dB(A)230 V View
LWFE3G250-102PT-08 3,708 m³/h1,751 Pa 3,860 rpm1,000 W92 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 LWDE250 seriesSame impeller, different speed grade or wiring

LWDE-250S-MBN-07 product photoLWDE-250S-MBN-07Ø250 mm · 1,231 m³/h · 1,030 Pa · ECsame seriesLWDE-400 (16")S-MWN-04 product photoLWDE-250 (10")U-MWN-03Ø250 mm · 1,219 m³/h · ECsame seriesLWDE-300 (12")S-MWN-02 product photoLWDE-250 (10")U-MWN-01Ø250 mm · 1,219 m³/h · ECsame seriesLWDE-300 (12")S-MWN-02 product photoLWDE-250 (10")S-MWN-02Ø250 mm · 2,075 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-200 (8")S-MWN-04Ø200 mm · 1,310 m³/h · ECadjacent sizeImpeller Ø100–200 mmLWDE-200 (8")S-MWN-02Ø200 mm · 1,310 m³/h · ECadjacent sizeLWDE-300 (12")S-MWN-02 product photoLWDE-300 (12")U-MWN-01Ø300 mm · 1,763 m³/h · ECadjacent sizeLWDE-300 (12")S-MWN-02 product photoLWDE-300 (12")S-MWN-02Ø300 mm · 3,500 m³/h · ECadjacent sizeLWDA-200(8")S-PWN-09 product photoLWDA-200(8")S-PWN-09Ø200 mm · 910 m³/h · 384 Pa · ACadjacent sizeLWDA-300 (12")S-MWN-04 product photoLWDA-300 (12")S-MWN-04Ø300 mm · 3,150 m³/h · ACadjacent size

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

LWBA4E315-102NS-18 product photoLWBA4E315-102NS-18Ø315 mm · 2,079 m³/h · 399 Pa · ACsimilar dutyLWAA2E250S-7MEW-16 product photoLWAA2E250S-7MEW-15Ø250 mm · 2,060 m³/h · ACsimilar dutyLWAA2E250S-7MEW-16 product photoLWAA2E250S-7MEW-16Ø250 mm · 2,060 m³/h · ACsimilar dutyLWAA4D300S-5MEB-04 product photoLWAA4D300S-5MEB-04Ø300 mm · 2,060 m³/h · ACsimilar dutyLWAA4E300S-5MEB-02 product photoLWAA4E300S-5MEB-02Ø300 mm · 2,060 m³/h · ACsimilar duty

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

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