Allen-Bradley 440P-MSRB22E Safety Interlock Switch

The Allen-Bradley 440P-MSRB22E (440P-MSRB22E) is a safety interlock switch designed for machine guarding and safety monitoring applications within industrial automation systems. Engineered by Allen-Bradley, this safety interlock device is utilized to monitor movable physical guards, access gates, service doors, and protective enclosures across automated production lines, machinery cells, and robotic work areas. The switch operates by detecting the opening or displacement of safety barriers, signaling the primary control circuit to stop hazardous machine operations and prevent operator contact with active mechanical processes. With a net weight of 10 kg, this robust unit serves as a direct replacement component for scheduled maintenance, system repairs, and safety retrofit projects. It integrates with industrial safety control architectures, emergency stop loops, and standard interlocking circuits to maintain personnel protection and compliance with operational requirements. By reliably reporting guard positions to supervisory controllers, the Allen-Bradley 440P-MSRB22E safety switch helps reduce unplanned downtime, safeguards machine operators, and ensures dependable operation throughout rigorous manufacturing environments.