Allen-Bradley 440K-MT55138 Safety Interlock Switch

The Allen-Bradley 440K-MT55138 (440K-MT55138) is a safety interlock switch designed for machine safeguarding and industrial automation safety applications. Engineered to monitor the status of movable machine guards, access panels, perimeter gates, and protective enclosures, this switch ensures that hazardous machine movements stop immediately whenever a barrier is breached or an access point is opened. By preventing unauthorized access to operating equipment, the unit provides critical personnel protection and reduces mechanical downtime in production environments. This Allen-Bradley safety device features a robust construction suitable for challenging industrial settings, with a total weight of 10 kg. It is widely implemented across automated assembly cells, manufacturing machinery, material handling systems, and packaging lines that require dependable electromechanical interlocking. Functioning as a replacement or maintenance component within existing safety circuits, the 440K-MT55138 integrates seamlessly with industrial automation systems to ensure compliance with operational safety standards. Proper inspection, mounting, and wiring verification according to original equipment manufacturer guidelines help safeguard operators while maintaining consistent production throughput and reliable system operation.