ABB MARN4-22-AT Safety Relay Module For Industrial Automation

ABB MARN4-22-AT is a four-pole safety relay module for industrial automation that provides failsafe monitoring and safe-machine shutdown in safety circuits. It carries two normally open and two normally closed auxiliary contacts (2NO/2NC) within a compact, rugged housing, enabling safety devices such as emergency stops, safety interlocks, and protective sensors to interface with a controller through clearly defined safe states. Front-mounted screw terminals simplify field wiring and ensure robust, vibration-resistant connections in typical industrial environments, while compliance with EN 50005 anchors its role as a certified safety relay component. This MARN4-22-AT belongs to ABB's safety-relay family and is designed to integrate safety signals from protective devices into control systems, supporting safe-stop logic and monitoring within a machine-guarding architecture. Typical applications include safeguarding presses, packaging lines, conveyors, and robotics cells where a compact safety relay streamlines control panel design and supports straightforward integration with ABB Jokab Safety products.