Abstract: A breaking device for interrupting current, the breaking device including an electrically conducting outer member; an electrically conducting inner member arranged radially inside the outer member with respect to a breaking axis; and an electrically insulating or semiconducting breaking tube arranged radially between the outer member and the inner member with respect to the breaking axis, the breaking tube being arranged to move along the breaking axis from a starting position to a protruding position in which the breaking tube protrudes from a space within the outer member for interrupting a current between the outer member and the inner member by means of the breaking tube.

Abstract: The present invention relates to a device for interrupting non-short circuit currents only, and in particular relates to a disconnector, more particularly high voltage disconnector, or to an earthing switch, more particularly make-proof earthing switch, and further relates to a low voltage circuit breaker. The device comprises at least two contacts movable in relation to each other between a closed state and an open state and defining an arcing region, in which an arc is generated during a current interrupting operation and in which an arc-quenching medium comprising an organofluorine compound is present. According to the application, a counter-arcing component is allocated to the arcing region, the counter-arcing component being designed for counteracting the generation of an arc and/or being designed for supporting the extinction of an arc.

Abstract: A mechanical breaker apparatus for breaking an electric circuit comprises two electrodes that are movable relative to each other, and including an electric arc splitter device having a multitude of distinct conductive elements that are spaced apart and electrically insulated relative to one another. The splitter device has a first portion and a second portion that are movable relative to each other between: an electrical contact position; and a spaced-apart position of the two portions. The splitter device has at least one series of the distinct conductive elements that, in an electrically closed position of the electrodes of the mechanical apparatus, are arranged along the continuous electrically-conductive path for the nominal electric current through the apparatus as defined by the two portions of the splitter device in the electrical contact position.

Abstract: A preferred embodiment of an interrupter assembly for a circuit breaker includes a first contact, a conductor, and a second contact mounted on the conductor. The second contact and the conductor are movable in relation to the first contact between a first position wherein the first and the second contacts are in electrical contact, and a second position. The interrupter assembly also includes a body having a first and a second half each having a plurality of recesses formed therein. The recesses form chambers within the body for holding insulating fluid when the first and the second halves are mated. The body receives the second contact and the conductor so that the conductor and the second contact are drawn through the chambers as the second contact moves from the first to the second position.