| 摘要 |
PROBLEM TO BE SOLVED: To improve the workability of the connecting work of electric wires, by connecting the screw terminal inserting bars of screwless terminal units to the electric wire connecting terminal-side screw terminals of a master circuit breaker and a plurality of branch circuit breakers and electric wires to screwless terminals. SOLUTION: The electric wire connecting-side terminal 101 and conductive member connecting-side terminal 102 of a master breaker 1, and the electric wire connecting-side terminals 201 and conductive member connecting-side terminals 202 of branch circuit breakers 2, are composed of screw terminals, and screwless terminal units 5 are attached to all electric wire-side terminals of the breakers 1 and 2. The screwless terminal units 5 are shipped from a plant in a state where screw terminal inserting covers are inserted into the electric wire connecting-side terminals of the breakers 1 and 2, and connected and fixed to the electric wire connecting-side terminals of the breakers 1 and 2 with screws. Since all of the electric wires can be connected to the screwless terminals of the screwless terminal units 5, the workability of the connecting work of the electric wires can be improved remarkably. |
