Here are some key features and specifications of the 440R-D23171 Safety Relay:

Safety Functions: The relay is designed to handle safety functions such as monitoring emergency stop buttons, monitoring safety gates and interlocks, and detecting faults in the safety system.

Inputs: It has multiple input channels for connecting various safety devices. These inputs can be configured for different types of signals, including two-hand control, light curtains, and safety switches.

Output Configuration: The relay provides safety-rated outputs, which can be used to interface with safety devices or other safety control systems.

Diagnostic and Monitoring Features: The 440R-D23171 safety relay includes built-in diagnostics and monitoring capabilities. These features help detect faults in the safety system and provide status information.

Connectivity Options: The relay supports various communication interfaces such as EtherNet/IP and DeviceNet, allowing integration into larger control systems.

Safety Integrity Level (SIL) Rating: The 440R-D23171 safety relay is typically designed to meet the requirements of specific safety integrity levels, such as SIL 3 according to the IEC 61508 standard.

Allen Bradley Safety relays

440R-D23171

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440R-EM4R2D

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440R-GL2S2P

440R-GL2S2T

440R-M23147

440R-M23148

440R-N23120

440R-N23126

440R-N23129

440R-N23132

440R-N23135

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440R-S13R2