Catalog of Schneider Electric Sepam 20 and Sepam 40 grid protection devices with selection tables, specifications and configuration details.
The catalog presents Schneider Electric’s Sepam 20 and Sepam 40 series protection relays for substations, transformers, motors and busbars. It includes selection tables, sensor input options, general settings, measurement and diagnostic functions, and control‑monitoring features.
Additional sections cover module options, communication interfaces (RS485, fiber, Ethernet), technical and environmental specifications, and installation guidance. The document is intended for engineers and specifiers selecting protection solutions for medium‑voltage power systems. This manual is written in Chinese.