Mean Well LRS-150-24 Switching Power Supply vs Mean Well LRS-350-24 350.4W 24V 14.6 Amp Single Output Switchable Power

Power Output and Capacity

The Mean Well LRS-350-24 delivers significantly higher power output compared to the Mean Well LRS-150-24. Specifically, the LRS-350-24 offers a maximum output power of 350.4 watts and an output current of 14.6 amps at 24 volts, while the LRS-150-24’s exact wattage is not stated but implied to be lower given its model number and typical series capacity.

This difference makes the LRS-350-24 better suited for applications requiring higher power loads. The 14.6-amp output current of the LRS-350-24 nearly triples the typical current expected from a 150W power supply, indicating its capacity to handle more demanding equipment or multiple devices simultaneously. Meanwhile, the LRS-150-24’s power capacity is more appropriate for lighter loads or situations where lower wattage is sufficient.

Price and Value

The Mean Well LRS-150-24 is priced at C$41.29, making it approximately C$5.71 less expensive than the LRS-350-24, which retails for C$47.00. This price difference reflects the disparity in power capacity, with the LRS-350-24 offering a higher power rating and output current.

For buyers focused on budget considerations and lower power needs, the LRS-150-24 presents a more affordable entry point. Conversely, those requiring the greater output of the LRS-350-24 will find the slightly higher cost justifiable given its enhanced capabilities. The price gap of about 14% between the two models corresponds reasonably to the increased electrical performance of the LRS-350-24.

Input Voltage and Surge Protection

The Mean Well LRS-150-24 features a selectable AC input range and can withstand a 300Vac surge input for five seconds, enhancing its robustness against voltage spikes. This surge tolerance is a critical factor for environments with unstable power sources or potential transient voltage events.

By contrast, the LRS-350-24’s input voltage range and surge protection details are not specified in the available data. Therefore, based on the given information, the LRS-150-24 provides explicit assurance of surge resilience, which may be an advantage in certain industrial or harsh electrical conditions.

Efficiency and Power Consumption

The LRS-150-24 boasts a no-load power consumption of less than 0.5 watts, indicating energy efficiency when the device is powered but not actively supplying current. This low idle power draw helps reduce wasted energy and operating costs over time.

No specific no-load power consumption figures are available for the LRS-350-24 in the provided features. However, given its higher power rating, it is possible that its idle consumption could be higher, though this cannot be confirmed. For users prioritising low standby power use, the LRS-150-24 offers a documented advantage.

Size and Operating Temperature

The Mean Well LRS-150-24 is described as a miniature size and 1U low profile unit, capable of operating at temperatures up to 70 degrees Celsius. This compact form factor and high temperature tolerance make it well-suited for space-constrained installations or environments with elevated ambient temperatures.

There is no size or temperature operation data available for the LRS-350-24 in the features provided. Thus, the LRS-150-24’s known small footprint and high operating temperature rating could be key factors for applications requiring compactness and thermal resilience.

Output Voltage Consistency

Both products deliver a nominal output voltage of 24 volts DC, making them compatible with devices and systems designed for this voltage level. This consistency ensures that users can select either power supply without concerns about voltage mismatch.

The LRS-350-24 explicitly confirms a 24V output in the feature summary, while the LRS-150-24’s model number and typical series characteristics imply the same output voltage. Thus, voltage compatibility is equivalent for both products.

Brand and Reliability

Both power supplies are manufactured by MEAN WELL, a reputable brand known for reliable industrial power products. This common brand heritage suggests comparable build quality and adherence to industry standards.

The LRS-150-24 highlights features such as surge input tolerance and low no-load consumption that reinforce its reliability credentials. The LRS-350-24’s higher power rating and single output design also reflect MEAN WELL’s engineering consistency, though it lacks some detailed feature disclosures.

Which should you buy?

If your application requires higher power output, with 350.4 watts and 14.6 amps at 24 volts, the Mean Well LRS-350-24 is the clear choice despite its slightly higher price of C$47.00. It is suitable for demanding loads that exceed the capabilities of the LRS-150-24.

However, if you need a compact, efficient power supply with surge tolerance and low idle power consumption at a lower cost of C$41.29, the Mean Well LRS-150-24 is an excellent option. Its miniature size and high temperature rating make it ideal for limited space or warmer environments.

Ultimately, choose the LRS-350-24 for power capacity and the LRS-150-24 for efficiency, size, and cost savings, based on your specific power supply requirements.