Siemens 6EP1433-2BA20 SITOP PSU300S 24 V/5 A Stabilized power supply. SITOP PSU300S 24 V/5 A stabilized power supply input: 400-500 V 3 AC output: 24 V DC/5 A. It belongs to 3-phase, 24 V DC. Recorded manufacturer technical characteristics include Efficiency: 89 %; Output Current: 5 A; Output Voltage: 24 V DC; Current Limitation: 6.6 A (typ.); Input Voltage Range: 340-550 V AC; Mains Buffering Time: 6 ms; Input Voltage (Rated): 400-500 V AC (3-phase); Short-circuit Protection: Constant current characteristic.