an electrical enclosure for an electrical component includes a housing having a bus bar portion and an electrical component portion arranged to receive the electrical component . at least one shutter is moveably arranged between the bus bar portion and the electrical component portion . a shutter interlock is arranged in the electrical component portion . the shutter interlock is configured and disposed to prevent the at least one shutter from shifting from a closed position to an open position when the electrical component is absent from the electrical component portion of the housing .