An accumulator control system for one or more electrical breaker poles, the system comprising: • an accumulator mechanism comprising a control handle that is movable at least between a closing position and a breaking position, and vice versa, an inner carriage connected to the control handle and an outer carriage, the inner carriage sliding in the outer carriage during movement of the control handle between the closing position and the breaking position, and vice versa, a spring being interposed between the inner carriage and the outer carriage; • a first link connected to the outer carriage and pivoting about a first pivot point between a first position and a second position, and vice versa, by actuating the control handle of the accumulator mechanism between the breaking position and the closing position, and vice versa; • a second link pivotable about a pivot axis for connecting to one or more breaker poles, the second link being connected to the first link by a sliding connection (710, 613) so that the movement of the first link between the first position and the second position, or conversely between the second position and the first position, causes the second link to pivot about the pivot axis between a position for opening the breaker pole(s) and a position for closing the breaker pole(s), or conversely between a position for closing the breaker pole(s) and a position for opening the breaker pole(s); the control system includes means for exerting additional pivoting force on the second link when the control handle is actuated beyond the breaking position, characterized in that the inner carriage includes at least one abutment suitable for coming into contact with the outer carriage when the inner carriage is moved by the control handle towards the breaking position of the breaker pole(s) while the outer carriage is blocked in the position for closing the breaker poles so as to force the outer carriage to move towards the position for opening by means of the control handle. • an accumulator mechanism comprising a control handle that is movable at least between a closing position and a breaking position, and vice versa, an inner carriage connected to the control handle and an outer carriage, the inner carriage sliding in the outer carriage during movement of the control handle between the closing position and the breaking position, and vice versa, a spring being interposed between the inner carriage and the outer carriage; • a first link connected to the outer carriage and pivoting about a first pivot point between a first position and a second position, and vice versa, by actuating the control handle of the accumulator mechanism between the breaking position and the closing position, and vice versa; • a second link pivotable about a pivot axis for connecting to one or more breaker poles, the second link being connected to the first link by a sliding connection (710, 613) so that the movement of the first link between the first position and the second position, or conversely between the second position and the first position, causes the second link to pivot about the pivot axis between a position for opening the breaker pole(s) and a position for closing the breaker pole(s), or conversely between a position for closing the breaker pole(s) and a position for opening the breaker pole(s);