The DIN rail-mount DDA dc-dc converter series uses step-down nonisolated power modules that operate from an input range of 9 to 53 Vdc, with an adjustable output voltage range of 3.3 to 24 V. The series is well-suited for generating additional high-current outputs from an existing 24-V bus in industrial, semifabrication and test and measurement equipment. Three models are available. A single nominal output +12 V 20 A, a dual-output +12 V 20 A/+5 V 20 A and a dual-output +12 V 14 A/-12 V 8 A. Output power typically is 250 W for the positive outputs and 75 W for the negative output. Convection cooled, the overall output power is 250 W, which can be increased up to 500 W with forced-air cooling.
