Patent ID: 9595816
Date: 2017-03-14
CPC Classifications: H01H,H02B

Claim:
1. A shutter system for an electrical panelboard, comprising: a housing for mounting in a breaker slot of the panelboard, the housing having support bases at opposite ends thereof, the support bases connected together by side braces to form a substantially rectangular shape for the housing; a shutter having planar shutter plates disposed lengthwise in the housing, the shutter plates positioned on opposite sides of the housing, each shutter plate having one or more shield sections offset toward a middle of the housing such that the shield sections of one shutter plate overlap the shield sections of the other shutter plate, the overlapping shield sections positioned to block access to conductors in the panelboard; and a drive block provided on at least one end of each shutter plate, each drive block slidably mounted on one of the support bases, the drive block of one shutter plate being slidable toward the drive block of the other shutter plate to bring the shutter plates together; wherein bringing the shutter plates together causes the shield sections of the shutter plates to move apart and into positions to unblock access to conductors in the panelboard.