The Allen-Bradley GuardMaster 440R-N23132 safety relay (MSR127TP) is a 24 V AC/DC single-function safety relay designed for use in safety circuits across industrial machinery. It provides three normally open safety contacts and one normally closed contact, with automatic or manual reset and removable terminals for straightforward field wiring. The module accepts a 24 V AC/DC supply on the coil and is part of the GuardMaster MSR127TP family, enabling compact, modular integration into safety loops while preserving clear fault and trip behavior in stop/lockout scenarios.
