Abstract: Provided is a distribution board which includes a plurality of breaker units which are disposed so as to be inserted and removed, through a front side of a housing, in a front-rear direction, relative to a vertical bus disposed on an inner depth side of the housing so as to extend in an up-down direction, the plurality of breaker units being electrically connected to and disconnected from the vertical bus by insertion and removal operation. In the distribution board, the breaker units include a first breaker unit and a second breaker unit that are aligned in line in a horizontal direction and that can be individually inserted and removed, and the vertical bus includes a first vertical bus corresponding to the first breaker unit and a second vertical bus corresponding to the second breaker unit.

Abstract: Provided is a distribution board which includes a plurality of breaker units which are disposed so as to be inserted and removed, through a front side of a housing, in a front-rear direction, relative to a vertical bus disposed on an inner depth side of the housing so as to extend in an up-down direction, the plurality of breaker units being electrically connected to and disconnected from the vertical bus by insertion and removal operation. In the distribution board, the breaker units include a first breaker unit and a second breaker unit that are aligned in line in a horizontal direction and that can be individually inserted and removed, and the vertical bus includes a first vertical bus corresponding to the first breaker unit and a second vertical bus corresponding to the second breaker unit.

Abstract: There is adopted a shape in which the portions, at the central side of a distribution board, of left and right unit bases on which respective breakers are mounted can be arranged in a staggered manner, so that there is realized a structure in which units can be horizontally arranged while the units share a central vertical bus-line. Alternatively, two insertion-type breakers are horizontally arranged on one and the same unit base and wiring is performed from a contactor provided on the unit base to the primary-side terminal of each of the breakers, so that the left and right breakers share the central vertical bus-line.

Abstract: There is adopted a shape in which the portions, at the central side of a distribution board, of left and right unit bases on which respective breakers are mounted can be arranged in a staggered manner, so that there is realized a structure in which units can be horizontally arranged while the units share a central vertical bus-line. Alternatively, two insertion-type breakers are horizontally arranged on one and the same unit base and wiring is performed from a contactor provided on the unit base to the primary-side terminal of each of the breakers, so that the left and right breakers share the central vertical bus-line.