Representative image of the series — dimensions and configuration of this model are given in the drawing and data table below.
- ImpellerØ43 mm1.7 in
- Max airflow48 m³/h28 CFM
- Max static pressure22 Pa0.09 in. wg
- Voltage115 V
- Speed3,000 rpm
- Input power17 W
- Noise37 dB(A)
LWCA-4390UN-06 AC Cross Flow Fan Ø43 mm
Ø43 mm | AC | Max airflow 48 m³/h | Max static pressure 22 Pa | 37 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
Catalogue table LWCA-4390UN-06
Files for LWCA-4390UN-06: datasheet, catalogue and drawing PDFs are listed above ↑ · CAD (STEP / DWG) on request — ask an engineer.
Technical description LWCA-4390UN-06
LWCA-4390UN-06 is a LONGWELL AC Cross Flow Fan from the AC Cross Flow Fans range, impeller Ø43 mm, rated 115 V AC, maximum airflow 48 m³/h, maximum static pressure 22 Pa, noise 37 dB(A), input power 17 W. The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.
Technical data
| Model | LWCA-4390UN-06 |
|---|---|
| Series | LWCA4390 |
| Motor type | AC |
| Phase | 1-phase |
| Inlet | Single inlet |
| Rated voltage | 115 V |
| Frequency | 60 Hz |
| Input power | 17 W |
| Speed | 3,000 rpm |
| Max. airflow | 48 m³/h |
| Max. static pressure | 22 Pa |
| Noise | 37 dB(A) |
| Ambient temperature | -25 ~ 60 °C |
| Impeller diameter | Ø43 mm |
| Outlet length | 98mm |
| 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 LWCA4390: 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-4390UN-06
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 (Ø43 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-4390UN-06 this model | 48 m³/h | 22 Pa | 3,000 rpm | 17 W | 37 dB(A) | 115 V | |
| LWCA-4390SN-07 | 41 m³/h | 18 Pa | 2,700 rpm | 14 W | 37 dB(A) | 230 V | View |
| LWCA-43150SN-07 | 61 m³/h | 16 Pa | 2,500 rpm | 15 W | 38 dB(A) | 230 V | View |
| LWCA-43190SN-07 | 70 m³/h | 14 Pa | 2,400 rpm | 15 W | 38 dB(A) | 230 V | View |
| LWCA-43150UN-06 | 72 m³/h | 22 Pa | 3,000 rpm | 17 W | 38 dB(A) | 115 V | View |
| LWCA-43190UN-06 | 86 m³/h | 22 Pa | 2,900 rpm | 18 W | 39 dB(A) | 115 V | View |
| LWCA-43250SN-07 | 90 m³/h | 15 Pa | 2,500 rpm | 19 W | 38 dB(A) | 230 V | View |
| LWCA-43250UN-06 | 110 m³/h | 21 Pa | 2,800 rpm | 22 W | 39 dB(A) | 115 V | View |
| LWCA-43290SN-07 | 115 m³/h | 11 Pa | 2,300 rpm | 19 W | 37 dB(A) | 230 V | View |
| LWCA-43350SN-07 | 130 m³/h | 15 Pa | 2,400 rpm | 21 W | 39 dB(A) | 230 V | View |
| LWCA-43290UN-06 | 135 m³/h | 21 Pa | 2,800 rpm | 23 W | 40 dB(A) | 115 V | View |
| LWCA-43350UN-06 | 150 m³/h | 19 Pa | 2,700 rpm | 21 W | 41 dB(A) | 115 V | View |
| LWCA-43420SN-07 | 163 m³/h | 21 Pa | 2,300 rpm | 21 W | 40 dB(A) | 230 V | View |
| LWCA-43420UN-06 | 170 m³/h | 20 Pa | 2,600 rpm | 22 W | 42 dB(A) | 115 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 LWCA4390 seriesSame impeller, different speed grade or wiring
Adjacent sizesOne size up when airflow is short, one size down when it is too much
LWCA-45120SN-07Ø45 mm · 123 m³/h · 26 Pa · ACadjacent size
LWCD-45870MN-06Ø45 mm · 454 m³/h · 26 Pa · DCadjacent size
LWCA-45300SN-06Ø45 mm · 172 m³/h · 25 Pa · ACadjacent size
LWCA-45360SN-06Ø45 mm · 207 m³/h · 25 Pa · ACadjacent size
LWCD-45750MN-06Ø45 mm · 392 m³/h · 28 Pa · DCadjacent size
LWCA-45180SN-07Ø45 mm · 184 m³/h · 26 Pa · ACadjacent sizeAlternatives at a similar dutySimilar airflow, different construction or motor platform
LWA-250(10")U(S)M-02Ø250 mm · 48 m³/h · ACsimilar duty
LWAD6020LH-0260 mm · 48 m³/h · 102 Pa · DCsimilar duty
LWAD8020HL-0480 mm · 48 m³/h · 27 Pa · DCsimilar duty
LWAD8020ML-0480 mm · 48 m³/h · 27 Pa · DCsimilar duty
LWAD8020LL-0480 mm · 48 m³/h · 27 Pa · DCsimilar duty
LWAD7010LM-0370 mm · 48.6 m³/h · 27 Pa · DCsimilar 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