The 440R-M23143 is a Safety Relay module designed and manufactured by Rockwell Automation, specifically part of their Guardmaster series. This safety relay provides monitoring and control functions for safety circuits. It is typically used for implementing safety applications, such as emergency stops, safety gates, light curtains, and more.

The 440R-M23143 safety relay offers various built-in features, including relay outputs and auxiliary contact outputs. It supports a wide range input configurations to accommodate safety devices and systems The module features self-monitoring capabilities to ensure the proper functioning of the safety circuits and provide fault detection.

It is important to note that when using safety components like the 440R-M23143, it is crucial to adhere to the manufacturer's instructions, local safety regulations, and industry standards to ensure proper safety measures are implemented.