ES190832U - Fused cartridge security cutting circuit. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Fusible cartridge cut-out of vertical type, constituted by a base of electrically insulating material in the form of a well for housing the fusible cartridge and by a plug holder of electrically insulating material, with a part that elastically rests at one of the ends to said fuse link, the hole of the well and the cartridge-holder plug being arranged in such a way that the latter can be fitted in said hole in a determined and sealed relative angular position. By turning the cap these two elements are inseparable in translation. Original arrangement, since on the one hand, the housing of the fusible cartridge is constituted by a cylindrical tube of electrically insulating material of internal diameter equal to the diameter of the bushes of the fusible cartridge, mounted freely in rotation about its longitudinal axis, between the bottom of the base and an inner flange of the hole of the well, and carries, at the level of each of the bushes of the fusible cartridge, two diametrically opposed windows open longitudinally, at least over a part of the height of the corresponding bushing; on the other hand, each of the wires of the conductor that must protect the circuit breaker, is connected to a contact clamp, whose arms tighten elastically with their free ends, bent inwards, the cylindrical rotating tube in diametrically opposite points, located at level of the corresponding windows. The upper part of the cylindrical tube and the cartridge stopper are provided with conjugate rotary drive means arranged so that they contact each other when said plug is fitted in the hole of the well, after having been placed in the relative angular position, call of rest, which allows this fit, while the windows of the cylindrical tube, are arranged so that they fall in front of the free ends of the arms of the contact clamps, at the end of the rotation movement of said cylindrical tube, dragged by the stopper, the amplitude of the rotation being limited from the rest position. (Machine-translation by Google Translate, not legally binding)