Siemens 6ES7951-0AG00-0AA0 Programmable Logic Controller Module

Siemens 6ES7951-0AG00-0AA0 is a RAM memory card for the SIMATIC S7-300 PLC family, delivering 128 KB of memory in a compact short-design module. This memory card plugs into the S7-300 CPU/memory interface to store PLC program blocks and runtime data, serving as a scalable memory extension or replacement for existing cards. Part number 6ES7951-0AG00-0AA0 is a Siemens spare part and is typically used in automation projects for memory expansion and safe replacement of worn memory modules. Compatible with SIMATIC S7-300 systems, it provides a compact, reliable solution for maintaining project integrity in control panels and manufacturing lines.