Allen-Bradley 440R-N23126 Safety Relay Module

Allen-Bradley Guardmaster 440R-N23126 MSR127T Safety Relay is a 24V AC/DC single-function safety relay designed to monitor safety devices and drive up to three normally open safety outputs (OSSDs) plus one auxiliary contact. It features automatic or manual reset, fixed screw terminals, and a compact 22.5 mm-wide enclosure suitable for standard safety relay installations. The unit is powered from 24V AC/DC and provides three NO safety outputs along with one NC auxiliary output for safety circuits such as light curtains and guarded interlocks, enabling safe shutdown and verification of guard conditions in machine guarding systems.