DISTRIBUTION BOARD

PROBLEM TO BE SOLVED: To provide a distribution board having high convenience.SOLUTION: A distribution board 100 comprises: a trunk switch 110 of which a power source is supplied from an external power source, and shuts down a cable way by a trip operation when a conducting state is abnormal; and a plurality of branching switches 130 connected to an output side of the trunk switch 110. The distribution board 100 further comprises a branching conduction detection part 140 for a branching conduction detection part that detects the present/absent of abnormality of the conducting state of each branching switch 130 and outputs a branching conducting signal D2. Each branching switch 130 includes a branching relay 131 that electrically controls an open and a close of a cable way on the basis of the branching conducting signal D2. Further, the branching conduction detection part 140 and the branching relay 131 are arranged on a print substrate, and there is provided a switching part that is constructed so as to enable an on/off control of a connection and a shutdown of the cable way for connecting the trunk switch and the external power source.SELECTED DRAWING: Figure 19 【課題】利便性の高い分電盤を提供する。【解決手段】分電盤１００は、外部の電源から電源が供給されて、通電状態に異常があるときにトリップ動作によりその電路を遮断する主幹開閉器１１０と、主幹開閉器１１０の出力側に接続された複数の分岐開閉器１３０とを備える。分電盤１００は、さらに分岐開閉器１３０の通電状態の異常の有無を検知して分岐通電信号Ｄ２を出力する分岐通電検知部分岐通電検知部１４０を備え、分岐開閉器１３０は、分岐通電信号Ｄ２に基づいてその電路の開閉を電気制御する分岐リレー１３１を有する。さらに、分岐通電検知部１４０と分岐リレー１３１はプリント基板上に配置される。さらに、前記主幹開閉器と前記外部の電源とを接続する電路の接続、遮断をオンオフ制御可能に構成された切替部を備える。【選択図】図１９