SITOP PSU4200 3AC 24 V/20 A Regulated power supply PSU4200 Input: AC 400/500 V Output: DC 24 V/20 A The 3-phase SITOP PSU4200 power supplies are designed for basic requirements in industrial environments and offer all the important functions at an affordable price. The wide-range input enables connection to a wide variety of 3-phase supply networks. Thanks to their narrow width, the power supplies require little space on the DIN rail and their good efficiency means that little heat is lost in the control cabinet. To further increase the 24 V availability, the SITOP PSU4200 power supplies can be combined with buffer, redundancy and selectivity modules. No matter what industry, no matter what requirement - Siemens offers reliable and efficient power supplies for every system.