Siemens 6EP4548-7XB00-3AX0 Power supply CHO 1400 Chopper Module. SITOP CHO1400 24/48 V chopper module 1 kW 24-28 V | 48 V - 56 V DC with monitoring interface. It belongs to Chopper module. Recorded manufacturer technical characteristics include Input voltage: DC 24-28 V / 48-56 V.