The Schneider Guardmaster MSR127T 440R-N23126 Safety Relay is a 24 V AC/DC powered, single-function safety relay that provides three normally open safety contacts and one normally closed auxiliary contact in a compact 22.5 mm frame with fixed terminals. It is designed for safety circuits such as E-stops, interlocks, and light curtains, serving to monitor and enforce safe-stop conditions, with support for automatic or manual reset modes as part of Rockwell Automation’s Guardmaster MSR safety relay family.
