Siemens 6ES7407-0KA02-0AA0 is the PS407 10 A power supply module for SIMATIC S7-400 racks, delivering a 5 V DC output at up to 10 A from a wide input range of 120/230 V AC. It powers the S7-400 backplane and attached modules, with the input range specified as UC 120/230 V. An optional backup battery is supported: 1× lithium AA cell, 3.6 V, 2.2 Ah, to preserve memory during brief power interruptions. This module is listed in Siemens Industry Mall as PS407 10A with 120/230 V input and 5 V DC/10 A output, and is part of the PS407 family used in fully populated S7-400 systems.
