Siemens 6EP3332-0TA00-0AY0 SITOP PSU3400 uni 24 V/2.5 A Stabilized power supply. SITOP PSU3400 uni 24 V/2.5 A Stabilized power supply Input: 230 V AC (88…264 V) input: 24 V DC (18…264 V) output: 24 V DC/2.5 A. It belongs to SITOP PSU3400. Recorded manufacturer technical characteristics include Efficiency: 85 %; Buffering time: 5 ms; Line frequency: 47-63 Hz; Output current: 2.5 A; Output voltage: 24 V DC; Input voltage AC: 88-264 V AC; Input voltage DC: 18-264 V DC; Protection class: IP20.