Industrial MC42D-2-AC Light Curtain Controller

MC42D-2-AC light curtain controller, a member of the MicroSafe series, is a compact safety control unit designed to monitor light curtain inputs and govern guarding logic in industrial automation environments. It operates from a 115/230 VAC supply and weighs 9.95 lb, reflecting a rugged chassis suitable for factory floors. The model is listed as discontinued by the manufacturer, though it remains referenced in vendor catalogs as a light curtain controller within the MicroSafe family, typically used with safety light curtain systems to help protect personnel around machinery. This designation—MC42D-2-AC—identifies a dedicated controller for 115/230 VAC light curtain setups and is recognized in multiple third‑party listings as part of STI/Omron’s safety controller lineage.