Industrial 45C400A UNMP Programmable Processor Module

45C400A is Reliance Electric’s Automate 40 logic processor module, the central processing unit for AutoMate PLC systems. This high‑performance processor executes the automation logic and coordinates the activity of related AutoMate modules within the AutoMate 40 family, enabling reliable control tasks across manufacturing lines and process environments. Catalogs and reseller listings describe the 45C400A as a compact logic processor housed in a rugged metal enclosure, built to withstand the harsh conditions typical of factory floors. Identified specifically as the Automate 40 Logic Processor, the 45C400A is associated with legacy Reliance AutoMate configurations designed for automation tasks in older installations. Even today, the module surfaces in surplus and repair markets, where technicians use it to repair, replace, or extend existing AutoMate 40 PLC configurations, underscoring its role in sustaining legacy automation systems. Multiple listings corroborate its part number (45C400A) and its classification as Automate 40 Logic Processor, reinforcing its identity across catalogs and second‑hand suppliers.