Allen-Bradley 440R-EM4R2D Delayed Output Expansion Module

The Allen-Bradley 440R-EM4R2D Delayed Output Expansion Module adds time-delayed safety outputs to Guardmaster safety relays or safety controllers, enabling controlled, delayed responses in industrial safety circuits. As a safety relay expansion module, it provides safety-rated delayed relay outputs (Output Type) to expand monitored safety systems for machine safeguarding, emergency stops, and safety interlock applications where coordinated interlock timing and safe motion cessation are required, with a safety category designed to integrate with monitored safety systems. Mount it on a DIN rail or panel mount, powered from an industrial control voltage (model dependent), and it includes status LEDs to indicate output and module state; it is intended for installation within a safety control enclosure operating under industrial-rated temperature ranges with a protective enclosure. Compatibility is with Guardmaster safety relay and safety controller systems (model dependent); common replacements include Allen-Bradley 440R-EM2R2D and 440R-EM4R1, as well as Omron G9SX, for retrofit or expansion in production lines.