Key features of the 440R-EM4R2 safety relay include:

Safety Inputs: It has four dual-channel safety inputs that can accept a variety of input devices such as emergency stop buttons, safety interlock switches, and light curtains.

Safety Outputs: The relay provides two normally open (NO) safety outputs and two normally closed (NC) auxiliary outputs. These outputs are used to control safety devices such as safety relays, contactors, or other safety-related equipment.

Monitoring and Diagnostics: The relay offers advanced monitoring and diagnostics capabilities, including comprehensive LED indicators for status and fault diagnosis. It also features monitoring of short-circuits and wire breaks in the safety circuit.

Reset Options: The 440R-EM4R2 relay supports manual and automatic reset modes, giving flexibility in system design and operation.

Safety Performance Level: The relay is designed to meet safety performance level PL e (EN ISO 13849-1) and safety integrity level SIL CL 3 (IEC 61508), making it suitable for a wide range of safety applications.

Configuration Software: To configure and program the safety relay, you can use Rockwell Automation's software tools, such as RSLogix 5000 and Connected Components Workbench.