MEAN WELL LRS-350-24 High Power Industrial Switching Power Supply 350.4W 24V 14.6A

The MEAN WELL LRS-350-24 is a high-performance industrial switching power supply delivering 350.4W of power at a stable 24VDC and 14.6A current. This unit stands out with its robust design, high efficiency exceeding 89%, and a wide operating temperature range of -40°C to +70°C, ensuring reliable operation in demanding industrial environments. Key advantages include its compact size for its power output, built-in short circuit, overload, overvoltage, and overtemperature protections, and compliance with major international safety and EMC standards, making it a trusted choice for a variety of applications.

Product Specifications

| Parameter               | Value                    |

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

| Output Voltage          | 24V DC                   |

| Rated Current           | 14.6A                    |

| Rated Power             | 350.4W                   |

| Input Voltage Range     | 90-264VAC (47-63Hz), 127-370VDC |

| Efficiency              | 89%                      |

| Operating Temperature   | -40°C to +70°C           |

| Dimensions (L x W x H)  | 215 x 115 x 30 mm        |

| Protections             | Short circuit, overload, overvoltage, overtemperature |

| Cooling Method          | Free air convection      |

| Compliance              | UL62368-1, TUV BSMI, CB, CE |

Core Features & Market Positioning

The MEAN WELL LRS-350-24 distinguishes itself in the industrial power supply market through its exceptional power density and comprehensive protection features. Its ability to operate efficiently across a broad temperature spectrum, from -40°C to +70°C, positions it as a superior option for applications requiring resilience in extreme conditions, such as automation systems in harsh environments or outdoor equipment. The integration of advanced safety mechanisms, including short circuit, overload, overvoltage, and overtemperature protection, significantly enhances system reliability and longevity, reducing downtime and maintenance costs. Furthermore, its compliance with stringent international safety certifications like UL62368-1, TUV BSMI, CB, and CE underscores its suitability for global deployment across diverse industrial sectors.

Key Application Scenarios

The versatility of the MEAN WELL LRS-350-24 makes it an ideal power solution for a multitude of industrial applications. It is highly effective in powering automated manufacturing equipment, including robotics and conveyor systems, where consistent and reliable voltage is critical for precise operation. In the telecommunications sector, it serves as a robust power source for network infrastructure and communication devices, often requiring uninterrupted operation. Additionally, its ability to withstand environmental challenges makes it suitable for powering signage and display systems, LED lighting arrays in industrial settings, and various types of control panels and monitoring systems that require dependable, high-current 24V DC output.

Practical System Integration Guidance

Integrating the MEAN WELL LRS-350-24 into industrial systems is straightforward due to its standard form factor and robust connectivity. Ensure the input terminals (L, N, GND) are connected to the appropriate AC mains voltage, respecting local wiring codes. The DC output terminals (+V, -V) should be connected to the load, with careful attention paid to polarity to prevent damage. For optimal thermal management, the power supply should be mounted with adequate free air convection; avoid obstructing the vents and ensure sufficient clearance around the unit. It is recommended to use appropriately sized wiring for both input and output to handle the 14.6A current without overheating.

Operation and Risk Mitigation

Operating the MEAN WELL LRS-350-24 requires adherence to basic safety protocols. Always disconnect power before making any wiring changes. The unit's built-in protections are designed to safeguard the power supply and connected equipment against common faults. In the event of an overload, the unit will typically shut down; once the overload condition is removed, it should resume normal operation. Overvoltage or overtemperature conditions will also trigger a shutdown, necessitating investigation into the root cause before power is restored. Regular inspection of input/output connections for signs of wear or damage is advisable to mitigate operational risks.

Scalability & Long-Term Value

The LRS-350-24 offers a foundational power solution that can be scaled to meet growing demands. For applications requiring higher power, multiple units can be paralleled, provided appropriate current-sharing provisions are implemented, enhancing both capacity and redundancy. Its robust construction and adherence to high-quality manufacturing standards by MEAN WELL ensure a long operational lifespan, contributing to a lower total cost of ownership. Compatibility with standard industrial control systems and the increasing integration of IIoT solutions means that reliable power delivery from this unit supports the ongoing digitalization and automation of industrial processes, securing its value long-term.

Frequently Asked Questions

What is the input voltage range for the MEAN WELL LRS-350-24?

The power supply accepts a universal input voltage range from 90 to 264VAC for AC input. It can also operate from a DC input voltage ranging from 127VDC up to 370VDC. This wide range ensures flexibility for global deployment and compatibility with various power sources.

This broad compatibility simplifies installation in diverse electrical environments. It is designed to handle fluctuations commonly found in industrial power grids. The power supply features active power factor correction (APFC) within a specified input range for improved efficiency.

The dual AC/DC input capability makes it suitable for off-grid or backup power systems. It allows for flexible integration into systems powered by batteries or other DC sources. Always ensure the input voltage stays within the specified limits to prevent damage.

What are the key protection features of the LRS-350-24?

This power supply is equipped with essential protection mechanisms for operational safety and longevity. It includes built-in protection against short circuits, overloads, and overvoltage conditions. Additionally, it features overtemperature protection to prevent damage from excessive heat.

These integrated safeguards automatically shut down the unit when a fault is detected. This protects both the power supply itself and the sensitive electronic equipment it powers. The protections are designed to be robust and reliable under demanding industrial conditions.

Once a fault condition is rectified, the LRS-350-24 typically resumes normal operation through a power cycle or auto-recovery, depending on the specific fault. This feature minimizes downtime and simplifies troubleshooting in many scenarios.

Can the MEAN WELL LRS-350-24 be used in parallel for higher current applications?

Yes, the MEAN WELL LRS-350-24 can be paralleled to achieve higher current outputs. This configuration is suitable for applications that require more current than a single unit can provide. Proper current sharing is crucial for successful parallel operation.

Implementing a parallel setup involves connecting multiple power supplies to the same load. Ensure that the voltage outputs of all units are closely matched before connecting them in parallel. Redundancy is also achieved by paralleling units.

For optimal performance and safety in parallel operation, it is recommended to consult MEAN WELL's application notes or technical support. They can provide specific guidance on wiring, load balancing, and necessary protective measures.