Patent ID: 7323958

Claim:
Multipole circuit breaker, comprising: single-pole breaking units each having, respectively, a case with two large side faces and a bottom surface and having at least one movable contact which operates in conjunction with at least one stationary contact, each single-pole breaking unit being electrically independent, an operating mechanism common to all single-pole breaking units to command opening or closing of the contacts of said single-pole breaking units, first line-side electrical connection means, and second load-side electrical connection means, wherein the electrically independent single-pole breaking units are located in a first and a second superposed layers, at least one of the two layers comprising at least one pair of electrically independent single-pole breaking units, each movable contact of each electrically independent single pole being on the same layer, and the operating mechanism comprising mechanical connecting means for simultaneously actuating the single-pole breaking units of both layers.