Safety shutter and locking block for MasterPact MTZ3 drawout
The LV848694 is a front face shutter (VIVC) and locking block assembly for the MasterPact MTZ3 drawout chassis, rated for 6300 A, 4-pole configurations. It provides a physical barrier over the primary disconnect fingers when the circuit breaker is in the disconnected or test position, preventing accidental contact with live stabs during maintenance or racking operations. The locking mechanism secures the shutter in the closed position, adding a padlockable isolation point per the chassis design.