MEAN WELL LRS-350-12
MEAN WELL LRS-350-12 Anahtarlamalı Güç Kaynağı Kullanım Kılavuzu
Model: LRS-350-12 | Marka: MEAN WELL
1. Giriş
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.
Lütfen kurulum ve çalıştırmadan önce bu kılavuzu dikkatlice okuyun ve ileride başvurmak üzere saklayın.
2. Güvenlik Talimatları
- Elektrik Tehlikesi: Bu ünite yüksek voltajla çalışır.tage. Installation and maintenance should only be performed by qualified personnel.
- Giriş VoltagSeçim: AC giriş hacmini sağlayıntage switch is set correctly (115VAC or 230VAC) before connecting to power. Incorrect setting can cause damage.
- Havalandırma: Ensure adequate ventilation around the power supply to prevent overheating. Do not block ventilation openings.
- Topraklama: Always connect the protective earth (ground) terminal to a proper ground connection.
- Aşırı Yük Koruması: Do not exceed the rated output current (29A) or power (348W) to prevent damage and ensure safe operation.
- Çevre: Do not expose the unit to moisture, rain, or excessive dust. Operate within specified temperature and humidity ranges.
3. Ürün Özellikleri
- Çıkış Hacmitage: 12V DC
- Anma Akımı: 29A
- Anma Gücü: 348W
- Giriş 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℃)
- Korumalar: Kısa Devre, Aşırı Yük, Aşırı Hacimtage, Aşırı Sıcaklık
- Certifications: UL and CE
4. Kurulum ve Kurulum
Follow these steps for proper installation of your LRS-350-12 power supply.
4.1 Paketin açılması
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 Giriş Hacmitage Seçim
Before connecting any power, ensure the AC input voltage seçim anahtarı doğru hacme ayarlanmıştage for your region (115VAC for North America, 230VAC for most other regions). This switch is typically located on the side of the unit.

Resim: Yan view of the LRS-350-12 power supply, highlighting the red switch for AC input voltage selection (115V/230V).
Uyarı: Failure to set the correct input voltage before powering on will result in damage to the unit.
4.3 Kablo Bağlantıları
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.

Resim: Ayrıntılı view of the LRS-350-12 terminal block, showing connections for AC input (L, N, Ground) and DC output (+V, -V).
- AC Girişi: Connect your AC mains power to the terminals labeled 'L' (Live), 'N' (Neutral), and '⊗' (Ground). Ensure secure connections.
- DC Çıkışı: 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.
- Cilttage Ayarlama: 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.
Video: Bir fazlaview 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. Kullanım Talimatları
- İlk Güçlendirme: After all connections are secure and the input voltage switch is correctly set, apply AC power to the unit.
- Gösterge LED'i: A green LED indicator (if present) will illuminate, signifying that the power supply is operational.
- Yük Bağlantısı: Connect your 12V DC load to the output terminals. Ensure the total current draw does not exceed 29A.
- Soğutma Fanı: 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. Bakım
- Temizlik: 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.
- Bağlantı Kontrolleri: Regularly inspect all wiring connections to ensure they are tight and secure. Loose connections can lead to poor performance or safety hazards.
- Çevresel Koşullar: Ensure the operating environment remains within the specified temperature and humidity ranges to prolong the lifespan of the unit.

Resim: Üst view of the LRS-350-12 power supply, illustrating the cooling fan and ventilation slots crucial for heat dissipation.
7. Sorun Giderme
| Sorun | Olası Neden | Çözüm |
|---|---|---|
| çıkış hacmi yoktage / Cihaz açılmıyor |
|
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| Çıkış hacmitage yanlış |
|
|
| Unit overheating / Fan constantly running at high speed |
|
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8. Özellikler
| Özellik | Değer |
|---|---|
| Model Adı | LRS-350-12 |
| Marka | İyi Niyetli |
| Çıkış Hacmitage | 12V |
| Anma Akımı | 29 Amps |
| Çıkış Watttage | 350 Watt |
| Giriş Voltage Aralık | 90 ~ 132VAC / 180 ~ 264VAC (by Switch) |
| Soğutma Yöntemi | Air (Built-in Fan) |
| Ürün Boyutları (U x G x Y) | 8.46 x 4.53 x 1.18 inç |
| Ürün Ağırlığı | 760 Gram |
| Korumalar | Short Circuit / Overload / Over Voltage / Aşırı Sıcaklık |
| Uyumlu Cihazlar | Industrial Automation Machinery, Industrial Control Systems, Mechanical and Electrical Equipment, Electronic Instruments, Equipment, or Apparatus |
| Bağlayıcı Türü | Vida Terminal Bloğu |
| Üretici | MEAN WELL ENTERPRISES CO., LTD. |
| UPC | 645312123032 |
9. Garanti ve Destek
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 ek kaynaklar için.
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