SITOP PSU400M 20 A DC/DC converter Input: DC 600 V Output: DC 24 V/20 A The SITOP PSU400M power supply with 600 V DC input is suitable as an efficient DC/DC converter for drive and battery systems. The DC/DC converter is characterized by a large input and temperature range, high efficiency, slim design and 50% extra power for 5 s/min. No matter what industry, no matter what requirement - Siemens offers reliable and efficient power supplies for every system.