The Allen Bradley 440R-M23088 is a guard safety relay designed for controlling light curtains and safeguarding industrial machinery. This single-function safety relay operates on 24 V AC/DC and features a variety of output options, including normally closed, normally open, and delayed safety outputs, which allow for flexible control and monitoring of safety circuits. Its adjustable time delay ranges from 0.5 to 10 seconds, providing reliable timing for safety-related functions. The relay supports different reset modes such as automatic, manual, or monitored manual, and includes removable terminals for convenient wiring and maintenance. Distributed by BSP Automation, this GuardMaster MSR138.IDP model is a dependable choice for ensuring personnel safety in automated environments.