MEAN WELL LRS-350-12
Manwal tal-Utent tal-Provvista tal-Enerġija li swiċċja MEAN WELL LRS-350-12
Model: LRS-350-12 | Brand: MEAN WELL
1. Introduzzjoni
This manual provides essential information for the safe and efficient use of your MEAN WELL LRS-350-12 Switching Power Supply. This unit is designed to provide a stable 12V DC output from an AC input, suitable for various applications including LED projects, industrial automation, and electronic instruments.
Jekk jogħġbok aqra dan il-manwal bir-reqqa qabel l-installazzjoni u t-tħaddim, u żommu għal referenza futura.
2. Istruzzjonijiet tas-Sigurtà
- Periklu Elettriku: Din l-unità topera b'volum għolitage. L-installazzjoni u l-manutenzjoni għandhom jitwettqu biss minn persunal kwalifikat.
- Input Voltage Għażla: Żgura l-input AC voltage switch is set correctly (115VAC or 230VAC) before connecting to power. Incorrect setting can cause damage.
- Ventilazzjoni: Ensure adequate ventilation around the power supply to prevent overheating. Do not block ventilation openings.
- L-ertjar: Always connect the protective earth (ground) terminal to a proper ground connection.
- Protezzjoni ta' tagħbija żejda: Do not exceed the rated output current (29A) or power (348W) to prevent damage and ensure safe operation.
- Ambjent: Do not expose the unit to moisture, rain, or excessive dust. Operate within specified temperature and humidity ranges.
3. Karatteristiċi tal-prodott
- Ħruġ Voltage: 12V DC
- Kurrent Rated: 29A
- Qawwa Rated: 348W
- Input Voltage Range: 90 ~ 132VAC / 180 ~ 264VAC (selectable by switch)
- Built-in cooling FAN with ON-OFF control (activates at RTH3 ≥ 50℃, turns off at RTH3 ≤ 40℃)
- Protezzjonijiet: Short Circuit, Overload, Over Voltage, Temperatura żejda
- Certifications: UL and CE
4. Setup u Installazzjoni
Segwi dawn il-passi għall-installazzjoni xierqa tal-provvista tal-enerġija LRS-350-12 tiegħek.
4.1 Disimballaġġ
Carefully remove the power supply from its packaging. Inspect the unit for any physical damage. If damage is found, do not proceed with installation and contact your supplier.
4.2 Input Voltage Għażla
Before connecting any power, ensure the AC input voltagL-iswiċċ tal-għażla huwa ssettjat għall-vol korretttage for your region (115VAC for North America, 230VAC for most other regions). This switch is typically located on the side of the unit.

Immaġni: Ġenb view of the LRS-350-12 power supply, highlighting the red switch for AC input voltage selection (115V/230V).
Twissija: Failure to set the correct input voltage before powering on will result in damage to the unit.
4.3 Konnessjonijiet tal-Wiring
The LRS-350-12 uses screw terminal blocks for both AC input and DC output connections. Refer to the labels on the unit for correct terminal identification.

Immaġni: Dettaljata view of the LRS-350-12 terminal block, showing connections for AC input (L, N, Ground) and DC output (+V, -V).
- Input AC: Connect your AC mains power to the terminals labeled 'L' (Live), 'N' (Neutral), and '⊗' (Ground). Ensure secure connections.
- Prodott DC: Connect your load to the terminals labeled '+V' (Positive 12V DC) and '-V' (Negative/Ground). Multiple '+V' and '-V' terminals are provided for convenience and to distribute current.
- Voltage Aġġustament: A small potentiometer (labeled 'V.ADJ' or similar) is available near the output terminals to fine-tune the output voltage within a small range. Use a small screwdriver to adjust if necessary.
Vidjo: Overview of the Meanwell LRS 350 12 Power Supply, demonstrating the AC input, DC output terminals, and the voltage selection switch. This video provides a visual guide to the physical layout and basic connections of the power supply.
5. Istruzzjonijiet Operattivi
- Qawwa Inizjali: After all connections are secure and the input voltage switch is correctly set, apply AC power to the unit.
- LED indikatur: A green LED indicator (if present) will illuminate, signifying that the power supply is operational.
- Konnessjoni tat-Tagħbija: Connect your 12V DC load to the output terminals. Ensure the total current draw does not exceed 29A.
- Fann li jkessaħ: The built-in cooling fan operates automatically. It will turn on when the internal temperature (RTH3) reaches 50℃ and turn off when it drops below 40℃. This ensures optimal operating temperature.
6. Manutenzjoni
- Tindif: Periodically clean the exterior of the power supply with a dry, soft cloth. Ensure ventilation openings are free from dust and debris to maintain proper airflow for the cooling fan.
- Kontrolli tal-Konnessjoni: Regularly inspect all wiring connections to ensure they are tight and secure. Loose connections can lead to poor performance or safety hazards.
- Kundizzjonijiet Ambjentali: Ensure the operating environment remains within the specified temperature and humidity ranges to prolong the lifespan of the unit.

Immaġni: Fuq view of the LRS-350-12 power supply, illustrating the cooling fan and ventilation slots crucial for heat dissipation.
7 Issolvi l-problemi
| Problema | Kawża Possibbli | Soluzzjoni |
|---|---|---|
| L-ebda output voltage / L-unità mhux qed tixgħel |
|
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| Vol. Tal-ħruġtage hija żbaljata |
|
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| Unit overheating / Fan constantly running at high speed |
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8. Speċifikazzjonijiet
| Karatteristika | Valur |
|---|---|
| Isem tal-Mudell | LRS-350-12 |
| Brand | Jfissir tajjeb |
| Ħruġ Voltage | 12V |
| Kurrent Rated | 29 Amps |
| Output Wattage | 350 Watts |
| Input Voltage Firxa | 90 ~ 132VAC / 180 ~ 264VAC (by Switch) |
| Metodu tat-tkessiħ | Air (Built-in Fan) |
| Dimensjonijiet tal-oġġett (L x W x H) | 8.46 x 4.53 x 1.18 pulzieri |
| Piż tal-oġġett | 760 Gramm |
| Protezzjonijiet | Short Circuit / Overload / Over Voltage / Temperatura żejda |
| Apparati Kompatibbli | Industrial Automation Machinery, Industrial Control Systems, Mechanical and Electrical Equipment, Electronic Instruments, Equipment, or Apparatus |
| Tip ta' Konnettur | Blokk tat-Terminali tal-Invita |
| Manifattur | MEAN WELL INTRAPRIŻI, LTD. |
| UPC | 645312123032 |
9. Garanzija u Appoġġ
For warranty information, please refer to the documentation provided with your purchase or contact your authorized MEAN WELL distributor or reseller. Warranty terms and conditions may vary by region and point of purchase.
For technical support or further inquiries, please visit the official MEAN WELL website or contact their customer service department. The manual reference on the product label points to www.meanwell.com/manual.html għal riżorsi addizzjonali.
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