Abstract: A circuit breaker and impedance grounding switch having a first electrical terminal, a second electrical terminal, a third electrical terminal, a first vacuum bottle with a pair of contactors therein, a second vacuum bottle with a pair of contactors therein, and a mechanically interlocked linkage being electrically interconnected to the second electrical terminal and being movable between a first stable position and a second stable position. One of the pair of contactors of the first vacuum bottle is connected to the first electrical terminal. One the pair of contractors of the second vacuum bottle is electrically interconnected to the third electrical terminal. The linkage has a temporary position between the first and second stable positions electrically connecting simultaneously the first electrical terminal to the second electrical terminal and a third electrical terminal to the second electrical terminal.

Abstract: A transfer switch apparatus has first, second, and third electrical terminals extending outwardly from a housing. A first vacuum bottle is positioned in the housing and has a pair of contactors therein. A second vacuum bottle is positioned in the housing and has a pair of contactors therein. A mechanical linkage is movable between a first position and a second position. The first position electrically connects the first electrical terminal to the second electrical terminal. The second position electrically connects the third electrical terminal to the second electrical terminal. The first vacuum bottle and the second vacuum bottle are longitudinally aligned. The mechanical linkage is interposed between the first and second vacuum bottles.

Abstract: A circuit breaker and impedance grounding switch having a first electrical terminal, a second electrical terminal, a third electrical terminal, a first vacuum bottle with a pair of contactors therein, a second vacuum bottle with a pair of contactors therein, and a mechanically interlocked linkage being electrically interconnected to the second electrical terminal and being movable between a first stable position and a second stable position. One of the pair of contactors of the first vacuum bottle is connected to the first electrical terminal. One the pair of contractors of the second vacuum bottle is electrically interconnected to the third electrical terminal. The linkage has a temporary position between the first and second stable positions electrically connecting simultaneously the first electrical terminal to the second electrical terminal and a third electrical terminal to the second electrical terminal.