Here are some key features and specifications of the relay:

Safety Functions: The 440R-M23147 relay is capable of performing safety functions such as monitoring emergency stops, safety gates, light curtains, and two-hand control systems.

Input Types: It supports a variety of input types including dual-channel inputs, single-channel inputs with monitored output, monitored manual reset, and monitored manual start.

Safety Outputs: The relay provides two safety output contacts. These outputs are designed to control safety-related functions in the machinery or equipment.

Diagnostic LEDs: The relay has diagnostic LEDs that provide visual indication of the relay status and diagnostics. They can help in troubleshooting and identifying faults.

Reset Types: It supports automatic/manual reset modes depending on the application requirements.

Safety Performance Level: The 440R-M23147 relay is designed to meet the requirements of safety standards and performance levels like ISO 13849-1, EN 62061, and IEC 61508.

Connection Options: It offers several connection options including screw terminal and plug-in terminal variants. This allows for flexible installation and wiring.