Siemens g26004-a2105-p100-1 CPU Control Circuit Board

Siemens G26004-A2105-P100-1 is a CPU card (CPU-KARTE/CPU-Platine) designed for Siemens automation equipment and is catalogued with Rev. 1.2. In online listings, it is described as the B&K CPU-Platine Circuit Board, Rev. 1.2, and is sold as a PLC/add-on board by Siemens and third-party resellers. The part number, together with the revision, appears consistently across marketplaces such as eBay and Radwell, confirming its identity as a replacement circuit board intended for use in compatible Siemens PLC installations. Listed variants label the module as a PC Board, reinforcing its role as a core processing or control component within a Siemens control system. This board is identified for use in legacy Siemens automation architectures and is marketed as a spare part for technicians replacing a failed CPU module, rather than a standalone device. Because this is a specialized component with specific electrical interfaces and mounting requirements, buyers should confirm exact compatibility with their equipment documentation or a qualified technician before attempting installation.