Mean Well RSDH-150-48 Ultra Wide Input DC-DC Converter, 250V-1500VDC Input, 48V Output 3.12A

The RSDH-150-48 is designed for high-voltage DC systems that need a regulated 48V output from a very wide DC input range. Its 250-1500VDC input capability makes it relevant for industrial and other specialized DC bus applications where input voltage can vary significantly. Buyers typically choose this model when they need 150W output with 48VDC at up to 3.12A.

The main differentiator is its 250-1500VDC 6:1 ultra-wide input range, which is far broader than conventional DC-DC converters. This model also withstands 1700VDC surge input for 10 seconds, uses a fanless fully encapsulated design, and operates across a wide -40°C to +80°C temperature range with derating above +50°C. Those features make it a more specialized option for demanding DC input environments.

Yes. The RSDH-150-48 is built for DC inputs from 250VDC to 1500VDC and can tolerate 1700VDC surge input for 10 seconds. That specification is a key reason to select this model when the upstream DC source is much higher than typical low-voltage converters are designed for.

This model is specified for operation from -40°C to +80°C, with derating required above +50°C. It is also rated for operating altitudes up to 5000 meters. Combined with its fanless, fully encapsulated construction, that makes it a strong candidate for demanding ambient conditions.

The converter provides a nominal 48VDC output with a 150W power rating and rated output current of 3.12A. Its output voltage is also adjustable within the 48-58V range. That flexibility can help when a system needs a regulated 48V class DC output with some adjustment margin.

The RSDH-150-48 includes protection for short circuit, overload, over voltage, DC input under voltage, and DC input reverse polarity. These built-in protections are part of the model's design for higher-risk DC environments. Mean Well also backs this unit with a 3-year warranty.