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)
- Direct from LONGWELL
- OEM / ODM
- Samples in 1–3 days
- Production 15–30 days
- 12-month warranty
- CE · RoHS · ETL on request
CAD models (STEP / DWG) are released on request — see “Engineering files” below. Another format or a non-standard variant? Ask an engineer · download center
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 publicly downloadable. Tell us the project; an engineer sends the file after a short check, normally within 1 business day.
Performance curve (P-Q) LWDA-100S-MBN-14
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 curve re-digitised 2026-09-20 (axis-calibrated, cross-checked). 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.
Video LWDA-100S-MBN-14
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
Drawing, Curve & Wiring LWDA-100S-MBN-14
Files for LWDA-100S-MBN-14: datasheet, catalogue and drawing PDFs are listed above ↑ · CAD (STEP / DWG) on request — ask an engineer.
Technical description LWDA-100S-MBN-14
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.
Company certificates
Scans of original documents held by Ningbo Longwell Electric Technology Co., Ltd.: the company ISO 9001 / 14001 / 45001 management-system certificate. Click a scan to open the original.
ISO 9001 / 14001 / 45001Management systems of Ningbo Longwell Electric Technology Co., Ltd. (company certificate).
PDFISO 9001 / 14001 / 45001 management system certificateNeed a Declaration of Conformity for this model and your destination market? Ask us — we arrange additional certification on request.
How to order LWDA-100S-MBN-14
Most first orders follow the same eight steps. Quantities, terms and lead times are confirmed in your quotation.
- 1SelectFind models by duty point in the selector or by model number, compare on the curve and add them to your RFQ list.
- 2Engineering checkWithin 1 business day you receive the duty-point check on the curve, price and lead time.
- 3SamplesStock models ship in 1–3 days.
- 4Validation supportDatasheets, drawings, wiring diagrams and DoC per model; test reports, CAD and register maps after a short project check or NDA.
- 5Order & paymentProforma invoice; first orders on T/T 30 / 70.
- 6Production & release15–30 days at the partner factory that builds your model, then inspected and released to LONGWELL standards with outgoing sampling to AQL 2.5.
- 7ShippingFOB / CIF / DDP by sea from Ningbo or Shanghai; express and air on EXW / FCA / DAP.
- 8After-sales12 months standard, extendable to 18–24 months by project agreement; test records retained for 5 years; 8D closed-loop for any issue; annual technical review for framework customers.
Test & release at LONGWELL
Specified and drawn by LONGWELL; built to LONGWELL drawings by qualified partner factories; inspected and released to LONGWELL standards before shipment.
See test and release photos (8)
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
Go deeper on longwellfans.com
Application guides, project stories and engineering calculators for inline duct fans — on our main site.
Solutions
- Residential ventilationERV / HRV, bathroom and duct fans
- Commercial HVACAHU, rooftop, fan coil, air curtain