RAC05-K/277 AC/DC Converters RECOM Power RAC05-K/277 AC/DC Converters are multipurpose 5W AC/DC single-output power supplies for enhanced mains input conditions from 85VAC to 305VAC with a wide operating temperature range. RECOM Power RAC05-K/277 Converters feature fully protected outputs, high efficiency over the entire load range, and EMC class B emissions compliance without any external components. These converters are available in PCB-mount and wired packages. RAC05-K/277 converters have international safety certifications for industrial, domestic, Institute of Transportation Engineers (ITE), and household standards. Typical applications include automation, industry 4.0, IoT, household, and smart buildings.