Abstract: A current switch including a main contact including an electrically conductive knife, and an electrically insulating element, fitted in a mobile manner on a first portion of electric line in order to alternatively follow an opening movement and a closing movement; a shunt branch including a first part electrically connected to a second portion of the line, including a vacuum interrupter configured to be actuated alternatively between an open state and a closed state, a second part fitted in a mobile manner on the first part and configured to actuate the vacuum interrupter. During the opening movement, the electrically conductive knife acts upon the second part in order to actuate the vacuum interrupter, and during the closing movement, the electrically insulating element acts upon the second part without actuating the vacuum interrupter).

Abstract: A lockable handle assembly, having an operating handle rotatably mounted on a frame, with a bore therein, having an axis extending laterally, a blocking bolt slideably mounted in the handle, one end of the bolt being slideable into a strike in the frame, a drum rotatably mounted in the bore, with a second end of the bolt in contact with the drum so that rotation of the drum moves the bolt into and out of the strike, a lateral hole through the handle and passing through the bore, the drum having a throughhole therein coaxial with the lateral hole in the handle when the drum is positioned with the bolt in the strike, so that a bar extending through both the throughhole in the drum and the lateral hole in the handle prevents rotation of the drum to maintain the bolt is the strike thereby preventing rotation of the handle.

Abstract: Rotary operating handle comprising blocking means placed in a body, the blocking means being designed to block rotation of the operating handle with respect to a frame and being designed to be locked by interacting with at least one padlock. The blocking means comprise a rotary drum having at least one pass-through hole. Said rotary drum can be placed in a blocking position preventing any rotation of the operating handle and where, in said blocking position, said at least one hole is aligned with a hole of the body allowing a shackle of a padlock to pass preventing any rotation of the rotary drum from the blocking position to an unblocked position.