Allen-Bradley 440R-C23018 Safety Relay 3 N.O. 3 N.C.

Allen-Bradley 440R-C23018 Guardmaster MSR6R/T safety relay is a dual-channel, 110 VAC-powered safety relay that provides three normally open safety outputs for controlling downstream devices in machine guarding circuits. It is designed to monitor two safety input channels, consolidating safety logic in a compact unit to support two-hand control and interlock configurations with built-in fault detection across both channels. Typical applications include safeguarding presses, conveyors, robotic cells, and other automation equipment that require reliable, monitored safety outputs; the three NO outputs are used to switch safety devices or contactors in the guarded circuit. When wiring, ensure the 110 VAC coil supply matches the controller, and connect safety input signals to the monitored channels so that events on either channel properly affect the safety outputs.