Allen-Bradley 440R-C23205 is a 24 VDC monitored safety relay (MSR144RTP) from the Guardmaster MSR family, housed in a 45 mm‑wide enclosure designed for use in machine-safety circuits. It draws about 4 watts of power and features removable terminal connections to simplify field wiring and servicing. This single-function safety relay supervises protective devices such as light curtains, safety mats, and emergency-stop circuits, delivering monitored safety outputs that de-energize on fault or unsafe condition to help maintain safe machine operation.
