Meanwell NEL-400-4.2 LED Power Supply

The Meanwell NEL-400-4.2 is a high-efficiency, reliable LED power supply designed for various industrial applications. It provides a 400W output with a 4.2V DC voltage, ensuring consistent and stable power delivery to LED displays and other electronic equipment. This model is compact, fanless, and designed with high power density, making it ideal for space-constrained installations.

It features an active PFC (Power Factor Correction) function, a wide input voltage range, and multiple protection mechanisms, including short circuit, over-voltage, and over-temperature protections, ensuring durability and safety in operation.

Functions And Features

The Meanwell NEL-400-4.2 LED Power Supply has the following functions and features.

1. Power Conversion: Converts AC input to a stable 4.2V DC output, providing consistent power to LED displays and other electronic devices.
2. Power Factor Correction (PFC). Enhances the power efficiency by reducing reactive power, leading to better energy utilization and lower operational costs.
3. Protection Mechanisms. Safeguards connected equipment through various protection features, including short circuit, over-voltage, and over-temperature protection.
4. High-Efficiency Operation. Minimizes power loss during conversion, ensuring more energy is used effectively, which reduces heat generation and operational costs.
5. 400W Output Power. Delivers a robust power output of 400W, suitable for demanding LED applications.
6. 4.2V DC Output. Provides a specific voltage output ideal for certain LED systems and low-voltage devices.
7. Fanless Design. Ensures quiet operation and reduces maintenance needs by eliminating moving parts.
8. Compact And High Power Density. Designed for space-constrained environments, offering a high power output within a small form factor.
9. Wide Input Voltage Range: Can operate within a broad range of input voltages, enhancing its versatility in different electrical systems.
10. Multiple Protections. Equipped with short circuit, over-voltage, and over-temperature protections to ensure safe and reliable operation.
11. High Efficiency. Achieves high power conversion efficiency, leading to reduced energy waste and improved overall performance.
12. Active PFC Function. Improves power factor, making the power supply more efficient and reducing the load on the power grid.

Specifications

Here are its specifications.

1. Output Power. 400W
2. Output Voltage. 4.2V DC
3. Output Current. 95.24A
4. Input Voltage Range. 90 ~ 264V AC
5. Frequency Range. 47 ~ 63Hz
6. Efficiency. Up to 88%
7. Power Factor. > 0.95 at full load (115V AC input)
8. Protection.
   • Short Circuit Protection. Auto recovery after fault condition is removed
   • Over-Voltage Protection. Shut down and restart after the voltage returns to normal
   • Over-Temperature Protection. Shutdown and auto recovery after the temperature decreases
9. Operating Temperature. -30°C to +70°C (with derating)
10. Cooling Method. Fanless, convection-cooled
11. Dimensions. 244 x 120 x 40 mm (L x W x H)
12. Weight. 1.2 kg
13. Safety Standards. UL, CUL, TUV, CB, CE certified
14. EMC Compliance. Meets EN55032 Class B, EN61000-3-2, -3, EN61000-4-2, -3, -4, -5, -6, -8, -11 standards
15. Warranty. 3 years

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