The Siemens 6AG1961-3BA21-4AX0 is a SIPLUS PSE202U redundancy module based on the 6EP1961-3BA21 platform, designed to decouple two SITOP 24 V DC power supplies for a shared load with failover capability. It uses conformal coating for harsh environments and operates from 0 to +60 °C. The module provides a 24 V DC input with a total 40 A capacity, split into two outputs limited to 20 A each, enabling reliable redundancy for SITOP power rails in industrial control systems.
