Allen-Bradley 855EP-B24Y4 Remote IO Interface Module

The Allen-Bradley 855EP-B24Y4 Remote IO Interface Module is a Rockwell Automation device that serves as the interface between a controller and distributed I/O located remotely from the main rack, enabling centralized control and streamlined wiring within an industrial automation system. Listed on the manufacturer’s site and found in distributor catalogs, the 855EP-B24Y4 design is part of Rockwell’s 855EP Remote IO family, a range dedicated to bridging controllers with remote I/O points. Across the 855EP-B24Y4 line, suffix configurations such as 855EP-B24Y4Y3, 855EP-B24Y4Y4, and 855EP-B24Y4Y5Y3 appear in official pages and vendor listings, signaling configurable variants within the same base part number. Major distributors, including Kirby Risk, list the 855EP-B24Y4, underscoring its continued availability for Rockwell users. For precise technical specifications, operational limits, and compatibility notes, consult the Rockwell product page for your exact suffix variant, since each variant in the 855EP-B24Y4 family can differ in details while sharing the same service category as a Remote IO Interface Module.