MEAN WELL NDR-75-24 High Reliability Industrial Switching Power Supply 76.8W 24V 3.2A

The MEAN WELL NDR-75-24 is a high-reliability industrial switching power supply engineered to deliver stable and efficient power for demanding applications. Boasting a 76.8W output, it provides 24V at 3.2A, making it a robust choice for automation, control systems, and various industrial machinery. Its compact design and robust build ensure performance even in challenging environments.

Product Specifications

| Parameter          | Value                                   |

| :----------------- | :-------------------------------------- |

| Model          | NDR-75-24                               |

| Output Power   | 76.8W                                   |

| Output Voltage | 24V DC                                  |

| Output Current | 3.2A                                    |

| Input Voltage  | 90-264VAC (AC), 127-370VDC (DC)         |

| Efficiency     | Up to 89%                               |

| Operating Temp.| -20°C to +70°C                          |

| Dimensions     | 100mm x 82mm x 52mm                     |

| Certifications | UL, CUL, TÜV, CB, CE                    |

| Protection     | Short circuit, Overload, Over voltage   |

Core Features & Market Positioning

The MEAN WELL NDR-75-24 distinguishes itself through its high reliability and robust design, crucial for industrial environments where uptime is paramount. It features a wide AC input range and DC input capability, offering significant flexibility in power source selection. The power supply adheres to stringent international safety and EMC standards, including UL, CUL, TÜV, CB, and CE, underscoring its suitability for global markets. Its slim profile (100mm x 82mm x 52mm) allows for easy integration into space-constrained enclosures, a common requirement in industrial control cabinets. The high efficiency rating of up to 89% minimizes heat generation and energy waste, contributing to a longer operational lifespan and reduced operating costs.

Key Application Scenarios

This industrial switching power supply is ideally suited for a broad spectrum of applications where consistent and dependable power is critical. It excels in powering programmable logic controllers (PLCs), sensors, actuators, and other control components within factory automation systems. Its robustness makes it a prime candidate for use in machinery for the food and beverage industry, packaging equipment, and automated assembly lines. Furthermore, the NDR-75-24 finds application in building automation, LED signage, and any scenario demanding a stable 24V DC power source that can withstand fluctuating environmental conditions and electrical noise, typical of industrial settings.

Practical System Integration Guidance

Integrating the MEAN WELL NDR-75-24 into an industrial system is straightforward due to its standard input and output terminals. For AC input, connect the Line, Neutral, and Ground wires to the corresponding L, N, and PE terminals. Ensure proper grounding for safety and noise reduction. The DC output terminals, marked as V+ and V-, should be connected directly to the 24VDC input of the connected load. It's recommended to use appropriate gauge wiring to handle the 3.2A current without excessive voltage drop. For systems requiring multiple power supplies, ensure they are installed with adequate spacing to prevent thermal buildup. Always refer to the unit's manual for detailed wiring diagrams and best practices regarding terminal connections and screw torque specifications.

Operation and Risk Mitigation

Safe operation of the MEAN WELL NDR-75-24 relies on adhering to installation guidelines and load parameters. The unit is protected against short circuits, overloads, and over-voltage conditions, which helps prevent damage to the power supply and connected equipment. However, it is crucial not to exceed the rated output power of 76.8W (24V x 3.2A). Operating continuously at maximum load may reduce lifespan. Ensure adequate ventilation around the power supply; the specified operating temperature range of -20°C to +70°C requires that ambient temperatures do not push the unit beyond its thermal limits, especially when enclosed. If the power supply fails to output voltage, first check input power and output connections. A stable input voltage within the specified range (90-264VAC) is essential.

Scalability & Long-Term Value

The MEAN WELL NDR-75-24 offers excellent long-term value through its durable construction and MEAN WELL's reputation for quality, ensuring a reliable power source for years to come. Its standard output voltage makes it compatible with a vast array of 24VDC industrial components and systems. While this specific model is rated at 76.8W, MEAN WELL offers a wide range of NDR series power supplies with varying wattages and voltages, allowing for system expansion or upgrades by selecting appropriately sized units from the same reliable product family. Integration with IIoT and digital monitoring solutions can be achieved by pairing the NDR-75-24 with compatible smart relays or data acquisition systems that can monitor its operational status and power output.

Frequently Asked Questions

What is the maximum ambient temperature for the MEAN WELL NDR-75-24?

The MEAN WELL NDR-75-24 is designed to operate within a broad temperature range from -20°C to +70°C. This wide operating window ensures reliable performance across diverse industrial climates. Proper ventilation is key to maintaining performance at the higher end of this range, preventing thermal stress.

Can I use the NDR-75-24 for non-industrial applications?

While engineered for industrial rigor, the NDR-75-24's reliability and certifications make it suitable for demanding non-industrial uses. Its stable 24V output is ideal for projects requiring robust power, such as advanced hobbyist electronics or specialized AV equipment.

What protections are built into the MEAN WELL NDR-75-24?

This power supply includes comprehensive protection features. It is safeguarded against short circuits, overloads, and over-voltage conditions. These protections are vital for preserving the integrity of both the power supply and the connected sensitive equipment.

How do I wire the MEAN WELL NDR-75-24?

Wiring involves connecting AC input to L, N, and PE terminals, and DC output to V+ and V- terminals. Always use appropriate wire gauges for the 3.2A current draw. Consult the product manual for precise terminal specifications and recommended torque values.

What is the typical efficiency of the NDR-75-24?

The NDR-75-24 boasts an efficiency of up to 89%. This high efficiency translates to less energy wasted as heat and lower operational costs. It also contributes to the power supply's extended lifespan and reliability.

Is the MEAN WELL NDR-75-24 compliant with international safety standards?

Yes, the NDR-75-24 holds numerous international certifications. It is compliant with UL, CUL, TÜV, CB, and CE standards. These certifications attest to its safety and suitability for global market deployment.

What are the dimensions of the NDR-75-24?

The power supply measures 100mm in length, 82mm in width, and 52mm in height. These compact dimensions facilitate easy installation in control panels and enclosures with limited space.

What is the input voltage range for the NDR-75-24?

The unit accepts a wide AC input voltage range of 90-264VAC. It can also be powered by a DC input ranging from 127-370VDC. This flexibility simplifies power source selection.

Can I connect multiple NDR-75-24 units in parallel?

While not explicitly designed for parallel operation without specific system configuration, multiple units can be used to power different circuits. Ensure adequate spacing and ventilation if deploying multiple units in close proximity.

What is the Mean Well NDR-75-24 used for?

This power supply is commonly used in factory automation, control systems, PLCs, sensors, and machinery requiring a stable 24V DC output. Its reliability suits demanding industrial environments and building automation.