The ABB IEPAS02 is a high-reliability power supply module designed for critical industrial control applications within the ABB INFI 90, Symphony, and Harmony control systems. This module functions by converting a primary input voltage into multiple, stable DC outputs required to power the backplane and other modules within a Module Mounting Unit (MMU). Engineered for durability and consistent performance, the IEPAS02 ensures the stable operation of control system components, featuring built-in protection mechanisms to safeguard against electrical anomalies. It is a fundamental component for maintaining the integrity and uptime of process control environments.