Siemens 6ES7138-4CA01-0AA0 Power Module

The Siemens 6ES7138-4CA01-0AA0 Power Module is a PM-E 24 V DC power module designed for the SIMATIC ET 200S distributed I/O system, providing the essential 24 V DC supply to downstream I/O modules while offering built-in diagnostics to monitor the health of the power feed in industrial automation panels. The part number 6ES7138-4CA01-0AA0 identifies this unit as a PM-E DC24V power module within Siemens’ ET 200S lineup, and Siemens catalogs it as a spare part appropriate for PM-E power distribution across ET 200S installations. Key specifications verified in official literature include 24 V DC operation and diagnostic capability, with the module designed for compatibility with SIMATIC ET 200S hardware ecosystems and standard industrial control environments. Used to power ET 200S I/O modules in automation panels, this PM-E DC24V module helps ensure stable voltage delivery and enables prompt fault indication, supporting reliable operation of automated processes in manufacturing and process environments.