Meanwell LRS-350-4.2 LED Power Supply

The Meanwell LRS-350-4.2 LED Power Supply is a reliable and efficient solution for powering LED displays and lighting systems. Designed for a wide range of applications, this power supply delivers a stable output voltage of 4.2V with a maximum output current of 83A, providing up to 350W of total power.

It features a compact design, making it suitable for space-constrained environments, and comes with a built-in active PFC function for improved energy efficiency.

The LRS-350-4.2 operates within a wide input voltage range of 90-264VAC, ensuring compatibility with various electrical systems. Additionally, it includes protections against short circuits, overvoltage, and overcurrent, enhancing its durability and reliability in demanding applications.

With a working temperature range of -30°C to +70°C, the Meanwell LRS-350-4.2 is designed to perform effectively in various environmental conditions, making it an excellent choice for LED installations.

Functions And Features

The Meanwell LRS-350-4.2 LED Power Supply has the following functions and features.

1. Stable Output Voltage. Provides a constant output voltage of 4.2V, ideal for powering LED displays and lighting.
2. High Output Current. Supports a maximum output current of 83A, allowing it to deliver up to 350W of power to connected devices.
3. Wide Input Voltage Range. Operates within an input voltage range of 90-264VAC, making it compatible with various electrical systems worldwide.
4. Active Power Factor Correction (PFC). The built-in active PFC function improves energy efficiency, reducing power consumption and increasing the system’s overall performance.
5. Compact Design. Its slim and lightweight design allows for easy installation in space-constrained areas, such as LED displays and lighting fixtures.
6. Multiple Protections. Equipped with short circuit, overvoltage, and overcurrent protections, ensuring the safety and reliability of connected devices.
7. Wide Operating Temperature Range. Designed to function effectively in a temperature range of -30°C to +70°C, suitable for various environmental conditions.
8. Low Noise Operation. Features a fanless design in many applications, contributing to quieter operation, which is particularly important in noise-sensitive environments.
9. Efficiency. High efficiency ratings (up to 90% or more) contribute to lower energy costs and reduced heat generation, enhancing the longevity of the power supply.
10. LED Indicator. Includes a built-in LED indicator to display the status of the power supply, providing users with immediate feedback on its operation.

Specifications

Here are its specifications.

1. Output Voltage. 4.2V DC
2. Output Current. 83A
3. Rated Power. 350W
4. Input Voltage Range. 90-264VAC / 127-370VDC
5. Frequency Range. 47-63Hz
6. Efficiency. Up to 86%
7. Power Factor. >0.95 at 230VAC full load
8. Operating Temperature. -30°C to +70°C
9. Cooling. Natural air convection
10. Protection Functions.
    • Short Circuit Protection
    • Overload Protection (110% – 150% rated output power)
    • Overvoltage Protection (4.6V to 5.4V)
11. Dimensions. 215 x 115 x 30 mm
12. Weight. 770g
13. Safety Standards. UL62368-1, IEC62368-1, EN62368-1
14. EMC Standards. Complies with EN55032 Class B, EN61000-3-2, and EN61000-3-3
15. MTBF. 341.7K hours at 25°C
16. Warranty. 3 years

These technical details showcase the LRS-350-4.2’s reliability and suitability for a range of LED applications, ensuring high performance and operational safety.

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