Representative image of the series — dimensions and configuration of this model are given in the drawing and data table below.
- ImpellerØ45 mm1.8 in
- Max airflow307 m³/h181 CFM
- Max static pressure27 Pa0.11 in. wg
- Voltage230 V
- Speed1,600 rpm
- Input power36 W
- Noise41 dB(A)
LWCA-45300SN-07 AC Cross Flow Fan Ø45 mm
Ø45 mm | AC | Max airflow 307 m³/h | Max static pressure 27 Pa | 41 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
Dimensional drawing LWCA-45300SN-07

Files for LWCA-45300SN-07: datasheet, catalogue and drawing PDFs are listed above ↑ · CAD (STEP / DWG) on request — ask an engineer.
Technical description LWCA-45300SN-07
LWCA-45300SN-07 is a LONGWELL AC Cross Flow Fan from the AC Cross Flow Fans range, impeller Ø45 mm, rated 230 V AC, maximum airflow 307 m³/h, maximum static pressure 27 Pa, noise 41 dB(A), input power 36 W. The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.
Technical data
| Model | LWCA-45300SN-07 |
|---|---|
| Series | LWCA45300 |
| Motor type | AC |
| Phase | 1-phase |
| Inlet | Dual inlet |
| Rated voltage | 230 V |
| Frequency | 50 Hz |
| Input power | 36 W |
| Speed | 1,600 rpm |
| Max. airflow | 307 m³/h |
| Max. static pressure | 27 Pa |
| Noise | 41 dB(A) |
| Ambient temperature | -25 ~ 60 °C |
| Impeller diameter | Ø45 mm |
| Outlet length | 300mm |
| Impeller material | Aluminum alloy |
| Insulation class | B/F/H |
| Bearing | Maintenance-free ball bearings |
| Duty | S1 |
Typical applications
- Indoor air-conditioning units
- Air curtains and door air barriers
- Elevator and cabinet ventilation
- Linear air supply in appliances
Series LWCA45300: 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 LWCA-45300SN-07
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 (Ø45 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 | |
|---|---|---|---|---|---|---|---|
| LWCA-45300SN-07 this model | 307 m³/h | 27 Pa | 1,600 rpm | 36 W | 41 dB(A) | 230 V | |
| LWCA-45120SN-06 | 69 m³/h | 22 Pa | 1,700 rpm | 16 W | 35 dB(A) | 230 V | View |
| LWCA-45180SN-06 | 103 m³/h | 23 Pa | 1,700 rpm | 18 W | 35 dB(A) | 230 V | View |
| LWCA-45120SN-07 | 123 m³/h | 26 Pa | 1,600 rpm | 28 W | 39 dB(A) | 230 V | View |
| LWCA-45240SN-06 | 138 m³/h | 24 Pa | 1,700 rpm | 21 W | 36 dB(A) | 230 V | View |
| LWCA-45300SN-06 | 172 m³/h | 25 Pa | 1,700 rpm | 23 W | 36 dB(A) | 230 V | View |
| LWCA-45180SN-07 | 184 m³/h | 26 Pa | 1,600 rpm | 30 W | 39 dB(A) | 230 V | View |
| LWCA-45360SN-06 | 207 m³/h | 25 Pa | 1,700 rpm | 26 W | 37 dB(A) | 230 V | View |
| LWCA-45240SN-07 | 246 m³/h | 27 Pa | 1,600 rpm | 33 W | 40 dB(A) | 230 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 LWCA45300 seriesSame impeller, different speed grade or wiring
Adjacent sizesOne size up when airflow is short, one size down when it is too much
LWCD-43420LN-06Ø43 mm · 191 m³/h · 16 Pa · DCadjacent size
LWCA-43420SN-07Ø43 mm · 163 m³/h · 21 Pa · ACadjacent size
LWCA-43190UN-06Ø43 mm · 86 m³/h · 22 Pa · ACadjacent size
LWCD-43420MN-07Ø43 mm · 191 m³/h · 16 Pa · DCadjacent size
LWCD-43350LN-06Ø43 mm · 158 m³/h · 15 Pa · DCadjacent size
LWCD-43290MN-07Ø43 mm · 136 m³/h · 14 Pa · DCadjacent sizeAlternatives at a similar dutySimilar airflow, different construction or motor platform
LWAD12038LX-12120 mm · 306.6 m³/h · 252 Pa · DCsimilar duty
LWAD12038MX-12120 mm · 306.6 m³/h · 252 Pa · DCsimilar duty
LWAD12038HX-12120 mm · 306.6 m³/h · 252 Pa · DCsimilar duty
LWAA2D145S-5MNW-02Ø145 mm · 309 m³/h · ACsimilar duty
LWA-600(24")TM-02Ø600 mm · 310 m³/h · ACsimilar duty
LWAE17251SL-03175 mm · 311 m³/h · 108.55 Pa · ECsimilar dutySee all AC Cross Flow Fans · select by duty point
Go deeper on longwellfans.com
Application guides, project stories and engineering calculators for cross flow fans — on our main site.
Solutions
- Home appliance coolingHoods, ovens, dryers, air conditioners
- Commercial HVACAHU, rooftop, fan coil, air curtain








