Allen-Bradley 21322-1 Circuit Board Card

The 21322-1 Circuit Board Card is a legacy electronic control board used in OEM machinery, process equipment, and automated control systems for machine control and signal processing. Identified by part numbers 21322-1 (213221) and 400457, this board is designed for chassis- or rack-mounted installation and employs mixed through-hole and surface-mount components to support internal control and signal connections. It targets board-level replacement in OEM machinery and manufacturing equipment that require electronic control functions within industrial automation and process equipment environments. Common replacements include direct 21322-1 circuit board, OEM refurbished 213221, and compatible industrial control board assemblies.