Both the Castell 'BEMF' and the 'MSI' units are designed to control access to machinery that has a run-down time.
The 'MSI' relies on the detection of motion via two sensors, only when both sensors detect zero movement will a Castell key be released. Both units are suitable for category 4 safety applications.
The BEMF and MSI have been designed to provide the highest level of safety when installed as part of an access control system for dangerous machinery.
MSI Movement Sensing Interlock Install Sheet
