Siemens Sitop PSU100S Stabilized power supply, 24VDC, 20AStabilized single phase, universal and powerful standard power supplies for machine and plant construction. To further increase the 24 V availability, the SITOP smart power supplies can be combined with buffer, DC UPS, redundancy and selectivity modules. Permanent overload capability with 1. 2 times the rated current up to 45 C ambient temperature. Up to 90% efficiency and cULus, cCSAus and DNV GL certifications.