DDA Series DIN Rail Power Supplies

TDK-Lambda's DDA series DIN rail mount DC/DC converters use step-down non-isolated power modules that operate from an input range of 9 V_DC up to 53 V_DC with a wide adjustable output voltage range of 3.3 V up to 24 V. The DDA series are ideally suited for generating additional low-cost, high current outputs from an existing 24 V bus in industrial, semi fabrication, and test and measurement equipment.

Three models are available in the DDA series. These include 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 is typically 250 W for each of the positive outputs and 75 W for the negative output. Convection cooled, the overall output power is 250 W, which can be increased to up to 500 W with forced air cooling.

Positive remote sense, remote on/off, and individual power good signals are fitted as standard. The DDA series is highly efficient, up to 95%, reducing internal waste heat for reliable operation. The models are 123.4 mm high, 115 mm deep, and have a very narrow 36.5 mm width, providing additional space on the DIN rail.

Safety certifications include IEC/EN/UL 62368-1 with CE marking for the low voltage, EMC and RoHS directives. The units also comply with EN 55032-A conducted and radiated emissions and meet the EN 61000-4 conducted, radiated, and magnetic field immunity standards.