Industrial 803456-8R 16 Slot Card Rack 100 120V

Reliance Electric AutoMax 16-Slot Rack, model 803456-8R (also cataloged as 57C331/57C331A), is a panel-mounted chassis designed to host AutoMax distributed-control system cards. This 16-slot rack provides a common backplane for sixteen modular control cards, consolidating wiring and card-to-backplane connectivity within a dedicated expansion frame built for industrial automation. The unit accepts a 100/120 VAC power input at 50/60 Hz and draws about 8 A (7 A in some configurations), with a rated capacity up to 50 KVA as part of Reliance’s AutoMax ecosystem. It is used to expand capacity of Reliance Electric AutoMax PLC installations, enabling additional processing and I/O modules to be added within a single rack. The part numbers 803456-8R and 57C331/57C331A appear in supplier catalogs and surplus listings as the 16-slot Automax rack, confirming compatibility with Reliance Electric’s Automax line and its 100/120 VAC, 50/60 Hz power requirements.