Siemens 6EP3447-7SB00-3AX0 SITOP PSU6200 48 V/20 A stabilized power supply. SITOP PSU6200 48 V/20 A Stabilized power supply Input: 400 - 500 V AC Output: 48 V DC/20 A with diagnostic interface. It belongs to 3-phase, 48 V DC. Recorded manufacturer technical characteristics include Efficiency: 96.6 %; Protection class: IP20; Output voltage DC: 48 V; Rated output current: 20 A; Input voltage AC range: 400 - 500 V.