Reliance Electric 57C413-3F Memory Module is a Common Memory Module for AutoMax PLC racks that expands a processor’s memory to store configuration tasks and system common variables. In typical configurations it provides 64K or 128K words of memory, helping to support continued operation in single-processor setups. Variants in the 57C413 family include battery-backed options (such as 57C413B and 57C423) with on-board backup to preserve memory during power interruptions, and related IDs like 57413-3F reflect its role in older Reliance/Baldor AutoMax systems.
