Allen-Bradley 440K-T11279 Safety Interlock Switch

The Allen-Bradley 440K-T11279 (440K-T11279) is an industrial safety interlock switch designed for machine guarding and safety interlocking applications across automated production environments. Engineered by Allen-Bradley, this switch functions as a critical protective device to monitor the open or closed status of movable guards, barrier gates, access covers, and safety enclosures. When integrated into safety control circuits and emergency shutdown architectures, the safety switch helps ensure hazardous machine motion is prevented while protective barriers remain open, protecting maintenance technicians and operators from operating hazards. With a substantial build weight of 10 kg, this rugged safety component provides reliable physical performance and enduring operation in demanding industrial installations. It serves as an essential replacement or spare part for existing Allen-Bradley safety systems, industrial machinery, robotic work cells, and automated processing lines requiring dependable perimeter interlocking. Regular inspection and proper replacement with authentic safety hardware maintain system integrity, minimize operational downtime, and ensure compliance with automated machinery safety standards.