MEAN WELL NDR-480-48 Industrial Control Switching Power Supply 480W 48V 10A

The MEAN WELL NDR-480-48 stands as a robust 480W industrial control switching power supply, delivering a stable 48VDC output at 10A. Engineered for demanding industrial environments, this power supply excels with its high reliability, compact design, and comprehensive protection features. Key technical specifications include a wide operating temperature range from -20°C to +70°C, a universal AC input voltage range of 90-264VAC, and built-in active PFC function, ensuring efficient power conversion and system stability. Its overload, over-voltage, and short-circuit protections safeguard connected equipment, making it an ideal choice for automation, control systems, and various industrial machinery.

Core Features & Market Positioning

The NDR-480-48 differentiates itself through its adherence to stringent industrial standards, including compliance with UL508 and EN61000-3-2. This certification signifies its suitability for use in safety-critical industrial control applications. The unit's slim profile (40mm width) is a significant advantage in space-constrained control cabinets, allowing for higher power density installations. MEAN WELL's reputation for quality and durability in the industrial power supply market further solidifies the NDR-480-48's position as a trusted solution for engineers seeking dependable and long-lasting power. Its convection cooling design eliminates the need for a fan, reducing noise and maintenance requirements, a crucial factor in continuous operation scenarios.

Key Application Scenarios

This industrial switching power supply is exceptionally well-suited for a diverse range of applications. It is commonly deployed in industrial automation and control systems, powering PLCs, HMI panels, sensors, and actuators. Other key sectors include machine tools, material handling equipment, and building automation systems. The 48V output is particularly prevalent in many industrial communication and control networks, making the NDR-480-48 a versatile component for various machine-to-machine interfaces and robotic systems. Its ability to withstand harsh environmental conditions, including vibrations and temperature fluctuations, ensures reliable operation in factory floors and outdoor installations.

Practical System Integration Guidance

Integrating the MEAN WELL NDR-480-48 into existing systems is straightforward due to its standard mounting dimensions and screw terminal connections. Ensure proper ventilation around the unit, maintaining at least 20mm clearance on all sides for effective heat dissipation. When wiring, connect the AC input terminals (L, N) to the mains supply and the DC output terminals (+V, -V) to the load, respecting polarity. For safety, it is imperative to ground the unit's chassis to earth ground using the designated grounding screw. Overloading the unit beyond its 480W rating should be avoided to maintain optimal performance and longevity. It is recommended to use appropriately sized wiring to handle the 10A current draw.

Operation and Risk Mitigation

The NDR-480-48 is designed for safe and reliable operation. It incorporates comprehensive protection mechanisms: overload protection (OLP) activates when the output current exceeds 110-150% of rated load, typically shutting down the unit; over-voltage protection (OVP) triggers if the output voltage exceeds 57.6-64.8VDC, also causing shutdown; and short-circuit protection (SCP) provides a constant current mode to protect against output short circuits. In the event of a fault, always disconnect the AC power before attempting any inspection or troubleshooting. The unit should be operated within its specified input voltage and temperature range to prevent damage and ensure continuous operation.

Scalability & Long-Term Value

The MEAN WELL NDR-480-48 offers significant long-term value through its robust design and the inherent scalability of 48VDC systems. While this specific model is a single 480W unit, multiple NDR-480-48 power supplies can be paralleled (with appropriate load sharing accessories if required by the application) to increase the total available wattage, accommodating growing demands in complex industrial setups. Its compatibility with standard industrial control protocols and components ensures seamless integration into existing or future IIoT (Industrial Internet of Things) architectures, supporting digital transformation initiatives by providing a reliable power foundation for networked devices and intelligent systems.

Frequently Asked Questions

1. What are the main advantages of the MEAN WELL NDR-480-48?

This power supply offers high reliability and a compact, slim design suitable for industrial control panels. It features robust overload, over-voltage, and short-circuit protections for connected equipment. The unit also boasts a wide operating temperature range and active PFC for energy efficiency.

2. What industrial standards does the NDR-480-48 comply with?

The NDR-480-48 complies with essential industrial safety and electromagnetic compatibility standards. This includes UL508 for industrial control equipment and EN61000-3-2 for harmonic emissions. These certifications ensure its suitability for demanding operational environments.

3. How do I properly install the NDR-480-48 in a control cabinet?

Mount the unit on a DIN rail or panel, ensuring at least 20mm of clearance for convection cooling. Connect the AC input (L, N) and DC output (+V, -V) terminals using appropriate gauge wiring. Crucially, connect the chassis to earth ground for safety and reliable operation.

4. What is the input voltage range for the NDR-480-48?

The NDR-480-48 accepts a universal AC input voltage range from 90 to 264VAC. This wide input capability makes it suitable for deployment in various regions worldwide without requiring manual voltage selection. It ensures flexibility in global installations.

5. How does the overload protection (OLP) function?

When the output current exceeds 110-150% of the rated load, the OLP feature is triggered. This protection mechanism typically results in the unit shutting down to prevent damage to itself and the connected equipment. It's a crucial safety function for preventing system failures.

6. What happens if the output voltage exceeds the safe limit?

If the output voltage rises above the over-voltage protection (OVP) threshold, set between 57.6-64.8VDC, the power supply will shut down. This prevents damage to sensitive downstream electronic components that could be affected by excessive voltage.

7. Can I connect multiple NDR-480-48 units in parallel?

Yes, the NDR-480-48 can be paralleled to increase the total output power capacity. Ensure proper load sharing is managed, potentially with external accessories, to distribute the current evenly across the units and maintain system stability.

8. What is the recommended operating temperature for this power supply?

The NDR-480-48 is designed to operate reliably within a wide temperature range of -20°C to +70°C. This broad operational window makes it suitable for diverse industrial environments, from cold storage to hot factory floors, without compromising performance.

9. Does the NDR-480-48 require active cooling (a fan)?

No, the NDR-480-48 utilizes passive convection cooling. This design choice eliminates the need for a fan, reducing noise levels in the operating environment and minimizing potential points of mechanical failure, thereby enhancing long-term reliability.

10. How can this power supply support IIoT integration?

Its stable and reliable 48VDC output provides a foundational power source for IIoT devices and control systems. Its adherence to industrial standards and potential for paralleling allow it to scale with increasingly complex smart manufacturing and digital monitoring systems.