Siemens 6ES5300-5CA11 is an IM 300 CC interface module for SIMATIC S5 systems, designed for the central connection of expansion devices to the IM 300 central unit. As a dedicated interface, it links the main CPU/central unit with peripheral expansions, enabling modular growth of a legacy S5 installation while preserving the integrity of the IM 300 architecture. The item ships in original packaging as a spare part and carries article number 6ES5300-5CA11.
