Allen-Bradley 440R-H23180 MSR230P Safety Relay

The Allen-Bradley 440R-H23180 MSR230P Safety Relay is a Guardmaster modular monitoring safety relay from the Minotaur MSR230P family, powered by 24 V DC and delivering four normally open safety outputs for guarding circuits. It is designed to monitor multiple safety devices in a single module, suitable for applications such as emergency stops, safety interlocks, safety gates, and light curtains, where each output can independently de-energize a hazard when a safety condition is detected. The unit offers removable terminals to simplify wiring and maintenance, aligning with field-service needs in busy industrial environments. As part of the MSR230P line, it serves as the safety-monitoring core that interfaces with other MSR230P devices to provide a compact, scalable solution for multi‑channel safety monitoring in guarded systems. The 440R-H23180 is the 24 V DC input variant with four safety outputs, reflecting Guardmaster practices that emphasize monitored outputs and reliable shutdown behavior when safety conditions are not met. Typical installations include conveyors, presses, robotic workcells, and other automated equipment where rigorous safety oversight and rapid hazard shutdown are required.