SITOP PSU3800 24V/30-40A Stabilized power supplies Input: 3 400-500 V AC Output: 24 V/30-40 A DC optimized for battery charging The SITOP PSU300B 3-phase power supply is optimally suited for battery charging thanks to the constant current characteristic. For other applications, the output characteristic can also be switched to latching disconnection. The 3-phase wide-range input enables worldwide use. The slim design takes up little space on the mounting rail. Installation clearances are not required. Regardless of the industry or requirements, Siemens offers reliable and efficient power supplies for every plant.