Linear control apparatus for a circuit-breaker

Linear control apparatus for engaging and disengaging a circuit-breaker that includes a drive rod provided with a control end, the apparatus itself including a slidably-mounted tubular arm which is actuated by a solenoid, which has the same longitudinal axis as the drive rod, and which is coupled to the drive rod whose control end is inside the tubular arm, and a "disengagement" first slide which presses against the tubular arm and through which the drive rod passes, the first slide being subjected to a "disengagement" first spring assembly which displaces it from the circuit-breaker engaged position to the circuit-breaker disengaged position under the action of first control means actuated on disengagement, wherein the control end of the drive rod is coupled to the tubular arm via at least one projecting portion fixed to the drive rod and passing through a respective longitudinal slot provided along the tubular arm, and wherein the control apparatus includes an "engagement" second slide to which the drive rod is fixed via its projecting portion, the engagement second slide being subjected to an "engagement" second spring assembly which displaces it from the circuit-breaker disengaged position to the circuit-breaker engaged position under the action of second control means actuated on engagement.