Siemens 6ES7971-1AA00-0AA0 — SIMATIC S7-300 spare part

Original Siemens part 6ES7971-1AA00-0AA0 for SIMATIC S7-300 automation systems. Serves as a module/connector component within the S7-300 platform — suitable for replacement or extension of controller module assemblies. Compatible with SIMATIC S7-300 series devices and provides reliable electrical/mechanical connection between modules. Verify the part number against your system documentation before installation.