440R‑W23218 Allen‑Bradley Guardmaster MSR320P Safety Relay. A discontinued DIN‑rail mounted, 17.5 mm wide modular safety relay input module, rated Category 4 / SIL3 / PL e (ISO 13849). Configurable inputs: up to three NC contacts, light‑curtain or safety‑mat inputs, plus 2 PNP auxiliary solid‑state outputs. 24 V DC power from base unit, removable terminals, provides diagnostic status via fieldbus or HMI.
DATASHEET For this Product...