Digitised from the catalogue curve at standard air (20 °C, 101.3 kPa, 1.2 kg/m³); one curve per voltage / speed grade (1 here, rated 230 V). Data version: catalogue 2026-08. The system resistance curve depends on the actual ductwork — confirm the operating point on site. Need an engineer to verify the duty point? Contact us or add the model to your RFQ and note the duty point.
Representative image of the series — dimensions and configuration of this model are given in the drawing and data table below.
- ImpellerØ100 mm3.9 in
- Max airflow242 m³/h144 CFM
- Max static pressure326 Pa1.31 in. wg
- Voltage230 V
- Speed2,450 rpm
- Input power60 W
- Noise59 dB(A)
LWDA-100S-MBN-14 AC Metal Inline Duct Fan Ø100 mm
Ø100 mm | AC | Max airflow 242 m³/h | Max static pressure 326 Pa | 59 dB(A)
- Factory direct
- OEM / ODM
- Samples in 1–3 days
- Production 15–30 days
- 12-month warranty
- CE · RoHS · ETL on request
PDFDatasheet (PDF)electrical & performance dataPDFFull product catalogueAC&DC&EC AC&DC&EC Metal duct fans · SKU on PDF p. 7
All files for LWDA-100S-MBN-146 files · direct download
PDFFull product catalogue · model on PDF p. 7WEBPDimensional drawingWEBPPerformance curveWEBPWiring diagramMP4Product video
CAD models (STEP / DWG) are released on request — see “Engineering files” below. Another format or a non-standard variant? Ask an engineer · download center
Proven in: Smart home ERV · Range hoods, ovens & fan coils · Drying, heat treatment & ovens — all case studies on longwellfans.com
Typical applications: Building & agricultural ventilation · Vertical farming — all industries
Engineering files (on request)
CAD files exist for this model and can be released for assembly checks in SolidWorks / CATIA / Creo / Inventor.
CAD models contain the blade geometry and are not downloadable. Tell us the project; an engineer sends the file after a short check, normally within 1 business day.
LWDA-100S-MBN-14 — construction, airflow path and running condition.
Superior Airflow, Intelligent Living | LWDA-100S-MBN-14 · open in video library
Powerful & Quiet: The Reliable Choice – Longwell Duct Fan | LWDA-100(4″)S-PWN-14 · open in video library
Longwell AC Plastic Duct Fan, Breathe Fresh Vitality into Your Space | LWDA-100(4)S-PWN-18 · open in video library
Downloads for LWDA-100S-MBN-14
PDFDatasheetPDFFull product catalogue · AC&DC&EC AC&DC&EC Metal duct fans · model on PDF p. 7 · 16.4 MBNeed a non-standard size or another format? Ask an engineer or search the download center.
LWDA-100S-MBN-14 is a LONGWELL AC Metal Inline Duct Fan from the Metal Inline Duct Fans range, impeller Ø100 mm, rated 230 V AC, maximum airflow 242 m³/h, maximum static pressure 326 Pa, noise 59 dB(A), input power 60 W. The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.
Technical data
| Model | LWDA-100S-MBN-14 |
|---|---|
| Series | LWDA100 |
| Motor type | AC |
| Phase | 1-phase |
| Rated voltage | 230 V |
| Frequency | 50 Hz |
| Input power | 60 W |
| Speed | 2,450 rpm |
| Max. airflow | 242 m³/h |
| Max. airflow (CFM) | 144 CFM |
| Max. static pressure | 326 Pa |
| Noise | 59 dB(A) |
| Ambient temperature | -25 ~ 60 °C |
| Storage temperature | -35 ~ 60℃ |
| Humidity | 5 ~ 95% RH |
| Altitude | < 1000m |
| Impeller diameter | Ø100 mm |
| Inlet diameter | 100mm |
| Impeller material | PA6+GF ( Impeller ) |
| Protection class | IP44 |
| Insulation class | F |
| Balance grade | G6.3 |
| Vibration standard | JB/T 8689 |
| Service life | 40,000Hours(L10), At 40 °Croom, humidity 15%~65%RH |
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-100S-MBN-14 this model | 242 m³/h | 326 Pa | 2,450 rpm | 60 W | 59 dB(A) | 230 V | |
| LWDA-100(4")S-MWN-08 | 140 m³/h | 58 Pa | 2,800 rpm | 20 W | 48 dB(A) | 220 V | View |
| 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-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 |
Not sure which one? Send us the duty point (airflow / static pressure / noise limit) — use the selector or ask an engineer.
Other models in the LWDA100 seriesSame impeller, different speed grade or wiring
LWDA-100 (4")U-MWN-03Ø100 mm · 410 m³/h · ACsame series
LWDA-100 (4")S-MWN-04Ø100 mm · 605 m³/h · ACsame series
LWDA-100 (4")U-PWN-01Ø100 mm · 410 m³/h · ACsame series
LWDA-100 (4")S-PWN-02Ø100 mm · 605 m³/h · 168 Pa · ACsame series
LWDA-100(4")S-PWN-14Ø100 mm · 325 m³/h · 163 Pa · ACsame series
LWDA-100(4")S-PWN-15Ø100 mm · 205 m³/h · 135 Pa · ACsame seriesAdjacent sizesOne size up when airflow is short, one size down when it is too much
LWDE3G100-IS-01Ø98 mm · 385 m³/h · 269 Pa · ECadjacent size
LWDE3G100-IS-03Ø98 mm · 385 m³/h · 269 Pa · ECadjacent size
LWDD-125M-MBN-08Ø125 mm · 270 m³/h · 365 Pa · DCadjacent size
LWDA-125S-PWN-11Ø125 mm · 319 m³/h · 185 Pa · ACadjacent size
LWDA-125 (5")S-PWN-02Ø125 mm · 605 m³/h · 168 Pa · ACadjacent size
LWDA-125 (5")U-PWN-01Ø125 mm · 410 m³/h · ACadjacent sizeAlternatives at a similar dutySimilar airflow, different construction or motor platform
LWAD12025LM-09120 mm · 241.2 m³/h · 196 Pa · DCsimilar duty
LWAD12025MM-09120 mm · 241.2 m³/h · 196 Pa · DCsimilar duty
LWAD12025HM-09120 mm · 241.2 m³/h · 196 Pa · DCsimilar duty
LWDD-100L-MBN-11Ø100 mm · 241 m³/h · 365 Pa · DCsimilar duty
LWDD-100M-MBN-12Ø100 mm · 241 m³/h · 365 Pa · DCsimilar duty
LWDD-100H-MBN-13Ø100 mm · 241 m³/h · 365 Pa · DCsimilar dutySee all Impeller Ø100–150 mm · select by duty point