Abstract: A capacitor including an expandable part fabricated on a capacitor housing is enclosed. The expandable part is expandable by a fault that occurs within the capacitor housing, thereby extending the capacitor housing to contact with an external interrupter. The external interrupter includes an external electrode and an external sensing circuit. The external sensing circuit detects a contact between the capacitor housing and the external electrode and sends a signal to disconnect the capacitor from an apparatus circuit.

Abstract: A capacitor including an expandable part fabricated on a capacitor housing is enclosed. The expandable part is expandable by a fault that occurs within the capacitor housing, thereby extending the capacitor housing to contact with an external interrupter. The external interrupter includes an external electrode and an external sensing circuit. The external sensing circuit detects a contact between the capacitor housing and the external electrode and sends a signal to disconnect the capacitor from an apparatus circuit.

Abstract: A segmented metallized film having a dielectric film, a metallized layer, and at least one fuse disposed within each segment of a plurality of segments along a center margin of the metallized layer. The metallized layer is on a portion of the dielectric film such that the dielectric film has a metallized edge, an unmetallized edge, and an uncoated area between the metallized layer and the unmetallized edge. The center margin is substantially parallel to the machine direction of the film. The center margin is disposed in the metallized layer approximately equidistant to the metallized edge and to the unmetallized edge. The metallized layer has a plurality of transverse margins running from the center margin to the uncoated area. The center margin and the plurality of transverse margins define the plurality of segments.