MEISHILE 48V 25A 1200W AC to DC Power Supply User Manual

1. Киришүү

This manual provides essential information for the safe and efficient use of your MEISHILE 48V 25A 1200W AC to DC Power Supply, model SE-1200-48. Please read these instructions carefully before installation and operation.

Маанилүү коопсуздук эскертүүсү: This 48V power supply does not support programming. It cannot be used with devices operating in BUCK-BOOST mode, such as batteries, chargers, speed/brightness regulators, or PWM modules.

2. Продукциянын өзгөчөлүктөрү

• Өркүндөтүлгөн муздатуу системасы: Features a cooling fan, aluminum heat sinks, silicone cooling, and a cutout design for optimal heat dissipation. This design ensures a perfect balance of weight and strength, contributing to a longer product lifespan.
• Туруктуу курулуш: Equipped with a 2.0mm thickened aluminum casing, resistant to wear, pressure, and impact, preventing easy deformation. The baking paint process provides excellent corrosion resistance and minimizes fingerprints.
• Жогорку натыйжалуулугу: Designed for low standby power consumption and high operational efficiency.
• Туруктуу чыгаруу: Provides a constant DC 48V output, adjustable between 45V and 50.5V.
• Күчтүү коргоо: Includes overload protection with a threshold of 150%-200% of the rated current (37.5A-50A), with automatic recovery after a power cycle.
• Dual PCB Design: Utilizes double-sided PCBs with high-precision components, manufactured through a complex, fine, mechanized, and automated production process.
• Курчап турган чөйрөгө каршылык: Heat and fire resistant, flame retardant, resistant to corrosion, mold, and moisture.
• Сапатты камсыздоо: Each MEISHILE power supply undergoes rigorous testing for approximately 2 hours within a 6-hour period before factory release.
• Коопсуз таңгактоо: Protected by thick pearl cotton packaging to ensure internal components are firmly fixed and prevent damage during transit.

3. Орнотуу жана орнотуу

Follow these steps for proper installation of your power supply.

3.1 Монтаждоо

The power supply features multiple mounting holes for flexible installation. Ensure the mounting surface is stable and allows for adequate ventilation around the unit.

3.2 Input Voltage Тандоо

Before connecting the power supply, ensure the input voltage switch is set correctly for your region. The unit supports AC 85-145V and 185-265V. The switch is located on the side of the unit.

3.3 Электр зымдары

Connect your AC input and DC output wires to the screw terminals. Ensure all connections are secure using a Phillips head screwdriver. The terminals are designed for easy and damage-free wire pressing.

4. Иштөө нускамалары

Understand how to operate your power supply effectively.

4.1 Output Voltage Тууралоо

DC чыгаруу томtage is adjustable from 45V to 50.5V. Use a small screwdriver to carefully turn the adjustment potentiometer located on the unit. The output voltage difference is ±1%.

4.2 Ашыкча жүктөн коргоо

The power supply features overload protection that activates between 150% and 200% of the rated current (37.5A-50A). In case of an overload, the unit will shut down and recover automatically after the power is cycled off and on.

4.3 Муздаткыч желдеткичтин иштеши

The integrated fan is temperature-controlled and will activate when the internal temperature reaches 45°C to maintain optimal operating conditions.

4.4 Selecting the Correct Power Supply Capacity

To ensure proper operation and prevent overload, select a power supply with a capacity greater than the maximum peak power of your connected appliance.

• Soft-start equipment (e.g., LED lampс): For appliances with a soft start, the power supply capacity should be 80% or less of the appliance's peak power. For example, a 150W лamp with a maximum peak of 14.7A (150W / 80% = 187.5W) requires a power supply of 187.5W or more.
• Hard-start equipment (e.g., heaters): For appliances with a hard start, the power supply capacity should be 50% or less of the appliance's peak power. For example, a 150W heater with a maximum peak of 31.2A (150W / 50% = 300W) requires a power supply of 300W or more.

5. Техникалык тейлөө

Электр камсыздооңуздун узак мөөнөттүү жана оптималдуу иштешин камсыз кылуу үчүн, төмөнкү тейлөө көрсөтмөлөрүн аткарыңыз:

• Тазалыкты сактоо: Regularly clean the exterior of the unit with a dry, soft cloth. Avoid using liquid cleaners that could seep into the internal components.
• Вентиляцияны камсыз кылуу: Make sure the ventilation openings are clear of dust and obstructions to allow for proper airflow and cooling. The temperature-controlled fan is crucial for heat dissipation.
• Экологиялык шарттар: Operate the power supply in a dry, well-ventilated environment, away from excessive heat, humidity, and corrosive substances.

6. Кыйынчылыктарды

Бул бөлүм сиз кабылышы мүмкүн болгон жалпы көйгөйлөрдү карайт.

6.1 No Output Power

• Текшерүү Voltage Которуу: AC киргизүү көлөмүн камсыз кылыңызtage switch (115V/230V) is correctly set for your local power supply.
• Байланыштарды текшерүү: Confirm that all AC input and DC output wires are securely connected to the terminals.
• Power Cycle: If the unit experienced an overload, disconnect the load, power off the unit, wait a few minutes, then power it back on.

6.2 Желдетүүчү ызы-чуу

The power supply features a temperature-controlled cooling fan that activates at 45°C. It is normal for the fan to produce some audible noise during operation, especially under higher loads or in warmer environments. If the noise is excessive or unusual, ensure the fan vents are not obstructed.

7. Техникалык шарттар

8. Сертификаттар

The MEISHILE SE-1200-48 power supply complies with various international standards, ensuring product safety and quality.

9. Кепилдик жана колдоо

MEISHILE is committed to providing long-term support for its products.

If you have any questions or require assistance, please contact our customer service team immediately. Our team has extensive experience in power supplies and transformers and is ready to help with both pre-sale and post-sale inquiries.

A multilingual user guide is also available in the product guides and documents section online.

For more information about MEISHILE products, visit the official MEISHILE Brand Store.