Allen-Bradley 440R-N23125 - Monitoring Safety Relay, 115V AC supply, MSR127T, 3 N.O. + 1 N.C. outputs

Allen-Bradley 440R-N23125 Monitoring Safety Relay — Guardmaster MSR127T, 115V AC, 3 N.O. safety outputs. The Allen-Bradley 440R-N23125 is a Guardmaster MSR127T single-function monitoring safety relay operating at 115V AC. It provides 3 normally open safety outputs and 1 normally closed auxiliary output, and accepts 1 N.C., 2 N.C. or OSSD input configurations with single- and dual-channel evaluation. Reset can be automatic or manual, and the unit uses fixed screw terminals. It carries an Active lifecycle status with a one year standard warranty..

MPN / SKU: 440R-N23125

440R-N23125 Applications

The 440R-N23125 monitors emergency stop buttons, gate interlock switches and light curtain OSSD outputs in machines wired for 115V AC control. Its three N.O. safety outputs switch the machine's contactors while the N.C. auxiliary contact signals status to a controller. Single- or dual-channel input wiring allows the relay to be matched to the required safety category, and monitored manual reset guards against automatic restart. Fixed screw terminals suit permanent panel installations. Confirm the input type and reset mode against the machine risk assessment before commissioning.

440R-N23125 Specifications