Allen-Bradley MSR127RP 440R-N23135 Safety Relay

Allen-Bradley Guardmaster MSR127RP 440R-N23135 Safety Relay is a 24 V AC or DC single-function safety relay in Rockwell Automation’s Guardmaster MSR127RP family. It provides one normally closed safety contact and two normally open auxiliary contacts, enabling straightforward wiring for emergency stops and safety interlocks in industrial safety circuits. The 440R-N23135 variant is designed for monitored manual reset, meaning a fault condition requires a deliberate reset before the safety outputs can re-energize. This relay is intended to interface with standard safety devices and safety controllers to deliver a clear fault/status signal and a safe-stop action within automation environments.