Pre-wiring device for contactors

摘要

A pre-wiring device creating a logic function such as an inverter function or a star-delta start function between at least two multi-pole contactors located side by side and used particularly in electrical control equipment of motors. A same pre-wiring device allows connections to be made in an identical way to several sizes of contactors which reduces accordingly the number of different terminal bars to be designed and manufactured. According to a characteristic of the invention, this pre-wiring device includes an upstream pre-wiring terminal bar 30 fitted with metal pins 31 to be inserted into the upstream wiring terminal blocks 11 of the contactors. The pre-wiring device also includes a downstream pre-wiring terminal bar.