| 摘要 |
PROBLEM TO BE SOLVED: To provide a new type distribution board, in which miniaturization and lightening are attained easily. SOLUTION: The distribution board comprises a main box 2 in which a group of wiring breakers 18 for branch is housed, and a sub-box 4 in which a master wiring breaker 6 is housed. Lightening is attained by miniaturizing the distribution board without being affected so much even when the sub-boxes 4 are made more than conventional devices because the main box 2 and the sub-box 4 can be set discretely in size corresponding to the master wiring breaker 6 and the group of wiring breakers 18 for branch respectively by housing the master wiring breaker 6 into the sub-box 4, not the main box 2. |
