Allen-Bradley 440T-AKEYE10AC Trapped Key Interlock

Allen-Bradley 440T-AKEYE10AC Guardmaster Trapped Key Interlock is a safety interlock device that traps a key as the guard closes, ensuring the machine cannot be re-energized or accessed for maintenance until the key is returned. This part belongs to the 440T Trapped Key Interlock family, designed to support controlled key exchange within Rockwell Automation’s Guardmaster safety system and to enforce lockout/tagout procedures in guarded equipment. It is specified with the key code Ac, indicating a defined keying arrangement used to coordinate with companion 440T exchange components to maintain a unique, sequential sequence of interlock actions. Common applications include guarding access doors on industrial machines, packaging lines, automotive assembly cells, and other manufacturing equipment where automatic securing of a guard and provisioning of a maintenance key are required to prevent unsupervised re-energization. The 440T-AKEYE10AC configuration provides a standardized, rugged solution for robust, repeatable safety interlocking in harsh industrial environments.