Key Transfer System

Key exchange systems for trapped key interlocking are used when a single point of isolation requires entry to multiple access points at the same time. Once the source of hazardous energy has been isolated, the isolation key is transferred to the key exchange system. Inserting and turning the key releases the access keys – this causes the isolation key to become trapped until all access keys are returned. Our vertical key exchange systems are robust, compact and suitable for installation on guard frames. More complex systems can be achieved using an MX panel, which can accept up to 5 keys IN and 15 Keys OUT. This is especially advantageous when there are multiple points of isolation or the use of "authority keys" is required to access the machinery.