Patent ID: 8174812

Claim:
A transfer switch apparatus comprising: a housing; a first electrical terminal extending outwardly of said housing; a second electrical terminal extending outwardly of said housing; a third electrical terminal extending outwardly of said housing; a first vacuum bottle being positioned in said housing and having a pair of contactors therein, one of said pair of contactors being electrically interconnected to said first electrical terminal; a second vacuum bottle being positioned in said housing and having a pair of contactors therein, one of said pair of contactors of said second vacuum bottle being electrically interconnected to said third electrical terminal; and a mechanical linkage being electrically interconnected to said second electrical terminal, said mechanical linkage being movable between a first position and a second position, said first position electrically connecting said first electrical terminal to said second electrical terminal, said second position electrically connecting said second electrical terminal to said third electrical terminal.