| 摘要 |
PURPOSE: To convert the voltage being fed to a branch breaker easily by applying different voltages to first and second bus bars, clamping the coupling piece of a coupler by means of a connector, and connecting the connector with any one of the first or second bus bar. CONSTITUTION: A main breaker is mounted on a box fixing base 1 and then a first bus bar 2, a second bus bar 7, and a third bus bar 10 are juxtaposed while being spaced apart and insulated in vertical and horizontal directions. A plurality of couplers 13 are then mounted on the box fixing base 1. Subsequently, a plurality of branch breakers 18 are mounted on the box fixing base 1 while inserting the insertion pieces 12b, 13a of the third bus bar 10 and the coupler 13 into terminal holes 19a at a terminal part 19 on the power supply side before each terminal holes 19a and the insertion pieces 12b, 13a are secured at the terminal screw part 19b. Finally, a connector 14 is connected with the first or second bus bar 2 or 7 depending on the voltage being fed to the branch breaker 18. With such structure, the branch voltage can be converted easily into a plurality of types. |
