| 摘要 |
PROBLEM TO BE SOLVED: To provide a beforehand wiring device that can reduce correspondingly the number of various terminal blocks to be designed and manufactured, facilitate part-inventory control by a manufacturer and a constructor, and enable to connect to contactors of several sizes in the same manner. SOLUTION: A beforehand wiring device that allows to generate logic functions such as an inverter function or a star/delta.start-up function between at least two multipolar contactors used especially in an electric controller of a motor is structured so that electrical connection to contactors of several sizes may be made in the same manner. For this purpose, the beforehand wiring device comprises an upstream-side beforehand-wiring terminal bar (30) to which a metallic pin (31) to be inserted into an upstream-side wiring terminal block (11) of the contactors is mounted, and also a downstream-side beforehand-wiring terminal bar (60).
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