Siemens 6EP1436-2BA10 SITOP PSU300S Stabilized Power Supply 24 V/20 A. SITOP PSU300S 20 A stabilized power supply input: 400-500 V 3 AC output: 24 V DC/20 A. It belongs to 3-phase, 24 V DC. Recorded manufacturer technical characteristics include Efficiency: 91 %; Output voltage: 24 V DC; Current limitation: typ. 25 A; Short-circuit proof: Yes; Rated output current: 20 A; Input voltage (rated): 400-500 V AC.