Patent ID: 8309873

Claim:
A low-voltage circuit breaker comprising: a containment structure that comprises at least two sides that are complementary with surfaces of two opposite sides of a set of poles; a control mechanism; a plurality of circuit breaking poles, each of which comprises a housing containing a sealed ampoule that in turn contains at least one fixed contact and at least one moving contact, which can be mutually coupled and uncoupled, said housing consisting of a first side and a second side that define an interior containing said ampoule, the outer side wall on said first side being complementary to and associable with the outer side wall of said second side, said poles being located side-by-side to form a set of poles complementary to at least a part of said containment structure; an operative connection mechanism between said control mechanism and said poles; wherein said operative connection mechanism comprise a connecting rod that connects a first drive lever to a second drive lever for driving said moving contact; wherein said second drive lever comprises a cam-shaped surface operatively coupled to said moving contact so that the rotation of said second lever determines a translator movement of said moving contact along a predefined axis.