RECOM Power's RAC04-K/277 series delivers 4 W of continuous output power in harsh environments up to 5000 m (16000 ft) altitude. This series features full load output power from -40°C to +75°C across the entire input range of 80 V_AC to 305 V_AC and is certified to operate with an ambient temperature of +90°C with derating.

This converter series is able to support Ecodesign Lot 6 standby mode operation for automation, IIoT, IoT, and household applications. The RAC04-K/277 also includes a reinforced class II installation rating for floating outputs. It boasts wide margin to class B emissions compliance without external components and is internationally certified for industrial, domestic, ITE, and household applications.