These devices manage the access to High Voltage and Medium Voltage systems safely.
Locks from different manufacturers are available including CISA, DOM, KABA, keys as per UIC 552 and FS 47/1. CISA keys are conforming with standard FS 283253.
The devices are built to implement the access logic to different devices or subsystem. Specific keys can be released only when the correct set of keys is already in the key holder, those enabling keys cannot be removed until the released key is not put back in the key holder. The device can be integrated with microswitches for configuration monitoring. Enabling sequences, number and type of keys, shape of the device can be defined to customer specific requirements.