Patent ID: 7646271

Claim:
An electrical switching apparatus comprising: an enclosure comprising a first side and a second side opposite and distal from said first side; a number of separable contacts enclosed by said enclosure; an operating mechanism structured to open and close said separable contacts; a plurality of terminals electrically interconnected with said number of separable contacts, said terminals protruding through the second side of said enclosure; and a number of phase barrier apparatus disposed on the second side of said enclosure, each of said number of phase barrier apparatus comprising: a plurality of separate phase barrier members, each of said separate phase barrier members being disposed about a corresponding one of said terminals, a number of interlocking members, each of said number of interlocking members interlocking with an adjacent pair of said separate phase barrier members; and wherein each of said separate phase barrier members comprises four sides, a first open end and a second open end; wherein said first open end is adjacent the second side of said enclosure; wherein a first side of said four sides is opposite and distal from a second side of said four sides; wherein the last said first side includes two first slots and a first runner parallel to said first slots; wherein the last said second side includes two second slots and a second runner parallel to said second slots; wherein each of said interlocking members comprises a first side including two first pins and a first recess parallel to said first pins, and a second side including two second pins and a second recess parallel to said second pins; wherein said two first pins are structured to mate with said two first slots and said first recess is structured to mate with said first runner of one phase barrier member of said adjacent pair of said separate phase barrier members; and wherein said two second pins are structured to mate with said two second slots and said second recess is structured to mate with said second runner of the other phase barrier member of said adjacent pair of said separate phase barrier members.