To provide a distribution board case base that can maintain the strength of the base even when an opening for inserting and extracting an electric wire is large enough to easily connect the electric wire to a branch breaker.SOLUTION: A first area E1 to which a main breaker 11 is installed and a second area E2 to which a branch breaker 12 is installed are separately arranged on the left and right, and an opening 4 for drawing an electric wire from the rear is formed in each of the areas E1 and E2, a pillar member 3 is laid across the boundary between the areas E1 and E2, and further, from among the first area E1 and the second area E2, in at least the second area E2, a rod-shaped beam member 5 is provided horizontally near the center, and a central pillar 7 is vertically arranged near the center of any one of the openings 4 vertically separated by the beam member 5.SELECTED DRAWING: Figure 1
展开▼
