1. Pengenalan
This manual provides essential information for the safe and efficient operation of your MEAN WELL RD-65A Dual Output Enclosed Power Supply. Please read these instructions thoroughly before installation and use, and retain them for future reference. This power supply is designed to provide stable 5V and 12V DC outputs from an AC input.
2. Arahan Keselamatan
AMARAN: Risiko renjatan elektrik. Pemasangan dan servis hanya boleh dilakukan oleh kakitangan yang berkelayakan.
- Pastikan input voltage range (88-264VAC) is compatible with your mains supply before connecting.
- Do not operate the unit in environments with high humidity or extreme temperatures outside the specified range (-25°C to 70°C).
- Ensure proper ventilation to prevent overheating. The unit uses air cooling.
- Jangan buka bekalan kuasa casing. Tiada bahagian yang boleh diservis pengguna di dalamnya.
- Protect the unit from short circuits, overloads, and overvoltage conditions. The unit includes built-in protections.
- Always disconnect power before making any connections or disconnections.
- Peranti ini direka untuk kegunaan dalaman sahaja.
3. Produk Lebihview
The MEAN WELL RD-65A is a 66W dual output AC/DC enclosed switching power supply. It provides a primary output of 5V DC and a secondary output of 12V DC, suitable for various electronic applications requiring multiple voltage rel.

Rajah 1: Depan view of the MEAN WELL RD-65A Dual Output Enclosed Power Supply. This image shows the compact, enclosed design with terminal blocks for connections.
Ciri-ciri Utama:
- Dual Output: 5V (6A) and 12V (3A)
- Universal AC Input: 88-264VAC
- High Efficiency: 79%
- Protections: Short-circuit, Overload, Overvoltage
- Compact Size: 5.1 x 3.9 x 1.5 inches
- Agency Approvals: UL/cUL/TUV/CE/CB
4. Persediaan dan Pemasangan
Follow these steps for proper installation of the RD-65A power supply:
- Pemasangan: Securely mount the power supply in a well-ventilated area. Ensure adequate clearance around the unit for proper airflow, as it relies on air cooling.
- Sambungan Input:
- Locate the AC input terminal block.
- Connect the Live (L), Neutral (N), and Ground (FG) wires from your AC mains supply to the corresponding terminals.
- Ensure all connections are tight and secure to prevent loose contacts.
- Sahkan input voltage is within the 88-264VAC range.
- Sambungan Output:
- Identify the DC output terminal blocks for +5V, +12V, and COM (common/ground).
- Connect your load devices to the appropriate output terminals. Ensure correct polarity.
- Do not exceed the maximum current ratings for each output (6A for 5V, 3A for 12V) or the total output power (66W).
- Tighten all output terminal screws securely.
- Kuasa Permulaan: After all connections are verified, apply AC power to the unit. The power supply should begin operating.
5. Arahan Operasi
The RD-65A power supply is designed for continuous operation within its specified parameters. Once properly installed and connected, it will provide stable DC power to your connected devices.
- Pengurusan Beban: Ensure the total power drawn by your connected devices does not exceed 66W. Exceeding this limit may trigger overload protection or damage the unit.
- Voltage Pelarasan: This model typically does not feature user-adjustable output voltage. The outputs are fixed at 5V and 12V.
- Keadaan Persekitaran: Operate the power supply within the specified operating temperature range of -25°C to 70°C. Avoid direct sunlight or heat sources.
6. Penyelenggaraan
The MEAN WELL RD-65A power supply requires minimal maintenance. Regular checks can help ensure its longevity and reliable performance.
- Pembersihan: Periodically clean the exterior of the unit with a soft, dry cloth to remove dust. Ensure the unit is disconnected from power before cleaning. Do not use liquid cleaners.
- Pengudaraan: Ensure that ventilation openings are not obstructed by dust or debris. Clear any blockages to maintain proper airflow.
- Pemeriksaan Sambungan: Occasionally inspect input and output terminal connections to ensure they remain tight and free from corrosion.
7. Penyelesaian masalah
If you encounter issues with your RD-65A power supply, refer to the following common troubleshooting steps:
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Tiada keluaran voltage | No AC input power; Blown fuse (internal); Overload protection activated; Unit failure. | Check AC power source and connections. Reduce load. If unit still fails, contact support. Do not attempt to replace internal fuses. |
| Keluaran voltage unstable or low | Overload; Poor connections; Faulty load device. | Reduce load. Check all wiring connections. Test with a different load. |
| Unit is excessively hot | Pengudaraan tidak mencukupi; Beban berlebihan. | Ensure proper airflow around the unit. Reduce load to within specifications. |
If the problem persists after attempting these solutions, contact MEAN WELL customer support or your distributor for further assistance.
8. Spesifikasi
Detailed technical specifications for the MEAN WELL RD-65A power supply:
| Parameter | Nilai |
|---|---|
| Model | RD-65A |
| Keluaran Voltage 1 | 5V DC |
| Arus Keluaran 1 | 6A |
| Keluaran Voltage 2 | 12V DC |
| Arus Keluaran 2 | 3A |
| Kuasa Output Maksimum | 66W |
| Kecekapan | 79% |
| Input Voltage Julat | 88-264VAC |
| Kekerapan Input | 47-63Hz |
| Ripple and Noise (mV p-p) | 80 |
| Peraturan Beban | 0.5% |
| Peraturan Talian | 0.5% |
| Isolasi Voltage | 3000V (minimum) |
| Suhu Operasi | -25°C hingga 70°C |
| Dimensi (L x W x H) | 5.1 x 3.9 x 1.5 inci (129.5 x 99 x 38.1 mm) |
| Berat badan | 4 auns (0.25 paun) |
| Kaedah Penyejukan | Udara |
| Perlindungan | Short-circuit, Overload, Overvoltage |
| Pensijilan | UL/cUL/TUV/CE/CB |
9. Waranti dan Sokongan
The MEAN WELL RD-65A Dual Output Enclosed Power Supply comes with a Waranti 3 tahun dari tarikh pembelian. Waranti ini melindungi kecacatan pada bahan dan mutu kerja di bawah penggunaan biasa.
For warranty claims, technical support, or service inquiries, please contact your authorized MEAN WELL distributor or visit the official MEAN WELL webtapak untuk maklumat hubungan.
Please have your product model number (RD-65A) and purchase information ready when contacting support.