| 摘要 |
PURPOSE: To provide unit by which a wiring operation is performed easily and which prevents erroneous wiring operations by a method wherein input terminals for respective branch overcurrent breakers at respective branch loads which are connected to a bus connected to an input-side leading-in trunk, a branch breaker and output terminals are arranged rectlinearly along lines crossed with the bus. CONSTITUTION: Every unit 1 for branch power distribution is constituted by a combination of a branch overcurrent breaker 2, and input-side connection means 3 and an output-side connection means 4. The branch overcurrent breaker 2 is provided with a cutoff mechanism in the intermediate, and it is provided with input-side connecting terminals 5 on one end side and with output-side connecting terminals 6 on the other end side. In the input-side connection means 3, a first bus B1 is connected to the input-side connecting terminals 5 for the branch overcurrent breaker 2. In the output- side connection means 4, loads are connected to the output-side connecting terminals 6 for the branch overcurrent breaker 2 and to a second bus B2. The branch overcurrent breaker 2, the input-side connection means 3 and the output-side connection means 4 are arranged rectlinearly along lines crossed with the respective buses. Thereby, a wiring operation is performed, and an erroneous wiring operation is prevented. |
