The ECD350D Series from Powerbox are Single Output DC-DC Power Supplies that step down DC input voltages from 18-33 V to regulated DC output voltages of 28 V. They deliver an output power of 350 W and have an efficiency of up to 92%. These single-output converters feature a rugged baseplate-cooled design and are engineered to deliver reliable power conversion in demanding environments. Available as off-the-shelf solutions, they comply with MIL-STD-461G and MIL-STD-1275F requirements, ensuring compatibility with military power systems and electromagnetic interference standards. They are available in chassis-mount packages that measure 280 x 49 x 200 mm and are ideal for defense applications.