Product details pictures Product Overview: Siemens 6ES7407-0KA02-0AA0 Parameter Specification Manufacturer Siemens Part Number 6ES7407-0KA02-0AA0 Product Name PS 407 10A Module Type System Power Supply for SIMATIC S7-400 Application & Fault Scenarios Common Uses: Central rack powering for multi-CPU S7-400H systems, redundant PSU pairs in process safety applications, retrofit replacement for aging PS 407 4A units. Typical Failures: Electrolytic capacitor dry-out after 12+