Allen-Bradley 440R-N23125 MSR127TP Safety Relay

Allen-Bradley Guardmaster 440R-N23125 MSR127TP Safety Relay is a 115 VAC input, single-function safety relay housed in a compact 22.5 mm-wide module designed for DIN-rail installation. Part of the MSR127 Minotaur family, the TP variant supports automatic or manual reset after a fault, enabling flexible integration into small- to mid-size machines. The unit combines safety monitoring with two safety output contacts that switch power to the machine control circuit when safety conditions are met, providing a compact, reliable means to de-energize equipment in the event of an emergency or fault. Typical applications include emergency stop circuits, safety gates, light curtains, and interlocks on conveyors, presses, and packaging lines where a compact, self-contained safety relay is advantageous. The MSR127TP is designed to deliver clear, discrete signaling to downstream safety controllers while preserving a straightforward wiring scheme and a minimal footprint, facilitating quick installation and dependable protection across automated workcells.