Patent ID: 9338866
Filing Date: 2016-05-10
CPC Classification: H01H,H02B

Claim Text:
1. An arc resistant panelboard having arc transfer feature, comprising: a bus stack on the panelboard, the bus stack having a plurality of parallel and spaced apart busbars therein; a phase barrier disposed lengthwise between adjacent busbars substantially parallel to and equidistance from the busbars; a channel member fitted lengthwise between the adjacent busbars and bracketing a side of the phase barrier such that the channel member forms a shaped corridor with the phase barrier extending lengthwise between the adjacent busbars; and an arc barrier projecting from a back side of the channel member substantially perpendicularly thereto such that when a circuit breaker is connected to the bus stack, the arc barrier, the busbars and the channel member form a winding arc passage with the circuit breaker in which any arc forming between the adjacent busbars is captured; wherein any arc captured in the winding arc passage between the adjacent busbars is transferred by arc blast pressure in the winding arc passage into the shaped corridor through openings in the channel member.