Allen-Bradley 1720-L1220 Diode Circuit Board

Allen-Bradley 1720-L1220 Diode Circuit Board is a diode PC board from Allen-Bradley, identified by model 1720-L1220 and catalog reference #223897. Described as a DIODE BOARD, this part serves as a discrete diode assembly within compatible Allen-Bradley control-system configurations. The designation 1720-L1220 denotes the specific diode-board variant used in legacy 1720-series hardware, and listings commonly present it as a replacement or renewal component for affected equipment. When replacing, match the exact part number 1720-L1220 (and any supplier listing) to ensure compatibility with your existing Allen-Bradley installation. This item is typically encountered in dealer catalogs and repair inventories that stock legacy 1720-series modules, and it is intended to restore or maintain diode-based circuitry within those assemblies. For buyers, this part represents a specific, verifiable AB component suitable for projects involving retrofits, repairs, or spare-parts stock for older automation systems that rely on the 1720-L1220 diode board.