The Allen Bradley 440R-M23086 is a GuardMaster safety relay designed for use with light curtains and other safety input devices. This single-function relay features delayed output timing, adjustable between 0.15 and 3 seconds, allowing precise control over safety circuit responses. It supports both normally closed and normally open contacts to accommodate a range of safety output and auxiliary functions. The unit is compatible with 115 Volt AC power and includes removable terminals for easier installation and maintenance. Reset options include automatic, manual, or monitored manual modes, providing flexibility in safety system design. This reliable safety relay is available through BSP Automation, ensuring access to quality industrial automation components.