Key features of the 440R-M23148 safety relay include:

Dual-channel architecture: The relay has two independent channels that allow it to monitor and control two separate safety circuits.

Time delay functionality: The relay provides adjustable time delays, allowing for sequential machine shutdown or startup procedures as required by safety regulations.

Monitoring and diagnostics: The relay offers monitoring capabilities with LED indicators for channel status and fault conditions. It also supports the connection of external monitoring devices.

Expansion options: Additional modules can be added to the relay to provide additional safety functions or to expand the number of monitored inputs.