Introduzzjoni
This manual provides essential information for the safe and efficient operation of your MEAN WELL LRS-50-12 Regulated Switching Power Supply. Please read this manual thoroughly before installation and use, and retain it for future reference. This power supply is designed to convert AC input voltage to a stable 12V DC output, suitable for various electronic applications requiring 50W of power.
Istruzzjonijiet tas-Sigurtà
- Periklu Elettriku: Always disconnect the power supply from the AC mains before performing any installation, wiring, or maintenance.
- L-ert kif suppost: Kun żgur li l-provvista tal-enerġija hija ertjata sew biex tevita xokk elettriku.
- Ventilazzjoni: Do not obstruct the ventilation openings. Adequate airflow is crucial for proper cooling and to prevent overheating.
- Użu fuq ġewwa biss: This device is intended for indoor use in dry environments. Do not expose to moisture, rain, or excessive humidity.
- Wiring korrett: Verify all wiring connections are correct and secure before applying power. Incorrect wiring can damage the unit or connected devices.
- Persunal kwalifikat: L-installazzjoni u s-servizz għandhom jitwettqu biss minn persunal kwalifikat.
- Tagħbija tal-Output: Do not exceed the maximum output current (4.2A) or power (50W) ratings to avoid damage to the power supply.
Prodott Overview
The MEAN WELL LRS-50-12 is a compact, single-output switching power supply. It features a universal AC input range and protections against short circuit, overload, over voltage, u fuq it-temperatura.

Image: The MEAN WELL LRS-50-12 switching power supply unit, showing its compact design and terminal block for connections.
Karatteristiċi ewlenin:
- Input universali AC / Firxa sħiħa
- Jiflaħ dħul ta 'żieda ta' 300VAC għal 5 sekondi
- Protezzjonijiet: Short circuit / Overload / Over voltage / Temperatura żejda
- Tkessiħ b'konvezzjoni ta' arja ħielsa
- Indikatur LED għall-enerġija mixgħul
- L-ebda konsum ta 'enerġija tat-tagħbija <0.2W
Setup u Installazzjoni
Follow these steps for proper installation of the LRS-50-12 power supply.

Image: Included AC input power cable with exposed wires and a 2-pin plug, and DC output cable with exposed wires and a barrel connector.
- Immuntar: Mount the power supply in a location that allows for adequate air circulation. Ensure there is sufficient space around the unit for cooling by free air convection.
- Konnessjoni tal-Input AC:
- Connect the AC input power cable to the L, N, and FG (Frame Ground) terminals on the power supply.
- Ensure the live (L), neutral (N), and ground (FG) wires are correctly identified and securely fastened to their respective terminals. Refer to local electrical codes for proper wiring practices.
- The provided AC cable typically has a 2-pin plug and exposed wires for connection to the power supply's terminal block.
- Konnessjoni tal-Output DC:
- Connect the DC output cable to the +V and -V terminals on the power supply.
- Ensure the positive (+) and negative (-) wires are correctly identified and securely fastened.
- Connect the other end of the DC output cable (barrel connector or exposed wires) to your intended device, ensuring polarity matches.
- Ivverifika l-Konnessjonijiet: Double-check all wiring connections for tightness and correctness before proceeding.
Istruzzjonijiet Operattivi
- Qawwa Mixgħul: Once all connections are secure and verified, connect the AC input plug to a suitable power outlet. The LED indicator on the power supply should illuminate, indicating power is on.
- Ħruġ Voltage: The power supply provides a regulated 12V DC output. Do not attempt to adjust the output voltage unless the unit has a specific adjustment potentiometer (not typically present on LRS-50-12 models for user adjustment).
- Konnessjoni tat-Tagħbija: Connect your device to the DC output. Ensure the device's power requirements do not exceed 12V, 4.2A, or 50W.
- Itfi: To turn off the power supply, disconnect it from the AC mains outlet.
Manutenzjoni
The LRS-50-12 power supply is designed for reliable operation with minimal maintenance. Follow these guidelines:
- Tindif: Keep the unit clean and free from dust. Use a soft, dry cloth to wipe the exterior. Do not use liquid cleaners or solvents.
- Ventilazzjoni: Periodically check that the ventilation openings are not blocked by dust or debris.
- Konnessjonijiet: Kultant spezzjona l-konnessjonijiet tal-wajers biex tiżgura li jibqgħu sikuri.
- Ħażna: If storing the unit, do so in a cool, dry place away from direct sunlight and extreme temperatures.
Issolvi l-problemi
| Problema | Kawża Possibbli | Soluzzjoni |
|---|---|---|
| No power / LED indicator off |
|
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| No DC output voltage |
|
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| Vol. Tal-ħruġtage instabbli |
|
|
Speċifikazzjonijiet
| Parametru | Valur |
|---|---|
| Mudell | LRS-50-12 |
| Input Voltage Firxa | 100 - 240V AC (Universal) |
| Ħruġ Voltage | 12V DC |
| Kurrent tal-Ħruġ | 4.2A |
| Qawwa tal-Ħruġ | 50W |
| Metodu tat-tkessiħ | Free Air Convection |
| Protezzjonijiet | Ċirkwit Qasir, Tagħbija żejda, Volum żejjedtage, Temperatura żejda |
| Dimensjonijiet (Approx.) | (Irreferi għall-iskeda tad-dejta tal-prodott għad-dimensjonijiet eżatti) |
| Piż | 0.8 Liri (madwar 12.8 uqija) |
Garanzija u Appoġġ
MEAN WELL products are manufactured to high-quality standards. For warranty information and technical support, please refer to the official MEAN WELL website or contact your authorized distributor. Keep your purchase receipt as proof of purchase.





