Abstract: A channel supporting device includes a support member having two clamps between which trunking is accommodated. The clamps each have an upper projection which defines between them and above the trunking housing for receiving a channel. The channel locks the support member around the trunking.

Abstract: Manufacture of electrical trunking containing, in a metal enclosure, a set of parallel electrical conductors supported at regular intervals on insulative contact blocks. A single sheet metal blank is bent and crimped to produce a tubular profile with joined edges 27, 28, the conductor assembly 31 is then slid into the tube and each support contact block 30 is centered in a respective branch opening 18 using a tool inserted through the opening. The contact block is clamped against the opening by an elastic expansion device.

Abstract: The invention concerns a suspension member (1) for electrical trunking including clamps (2, 3) between which the trunking (5) is accommodated and a fixing member (23b) for fixing the trunking to a support (5a). One of the clamps is a pivoting clamp assembled and articulated to the suspension member by assembly and pivot means (6) and retained in a holding position on the trunking by elastic locking means (9).

Abstract: Prefabricated electrical trunking made up of butt-jointed unit enclosure sections. A mechanical coupling is provided by use of flanges clamped by bolts passing through tubular spacers inside the enclosure sections. The spacers include openings receiving in a watertight manner swaged portions of orifices formed in the enclosure sections. A unit conductor assembly is housed in the coupling.

Abstract: Connector for electrical trunking containing parallel conductors accommodated in an enclosure. The body of the connector is associated with a latch which can be locked manually and preferably released by use of a tool. The latch cooperates with a contact block accommodated in the enclosure in order to operate lugs which guide and/or lock the connector.

Abstract: A coupling device for prefabricated electrical trunking. An internal member fits inside enclosure sections of the trunking which are to be butt-jointed. The internal member has water drainage grooves on its outer surface near a mating plane of the butt-joint. An exterior member fits over the joints and its two halves are bolted together.

Abstract: A power distributor device is disclosed for electric installations, comprising, for housing a set of power bars, an insulating case formed preferably of several interlockable modules. A member, for example an end-piece in the form of a lyre is associated with a zone for fixing the case on a support allowing expansion between the case and the support. An upstream connection box may be assembled to the case and comprise a zone for fixing to the support.

Abstract: A power distribution device is disclosed for electric apparatus, comprising a set of power bars housed inside an insulating case mounted fixedly in the central cavity of a profiled rail and a removable support element having a flat bottom bordered by two parallel lateral flanges provided with a hooking device for removably fixing the support element on the rail. The bottom of the support plate carries the electric apparatus, as well as a connector pluggable on the set of bars and having guide cheeks permitting plugging/unplugging by a translational movement remaining substantially perpendicular to the plane of the set of bars.

Abstract: A top hat rail is disclosed for fixing snap-fit apparatus, formed by shaping in the form of an omega a metal strip of predetermined thickness and having a web and two flanges. The flanges of said rail are deformed towards their free ends so that the edge of the flanges has, for the apparatus to be snap-fitted, a useful fictitious thickness, this thickness being determined between two support zones situated on each side of the flange. The fictitious thickness is equal to the thickness of a standardized rail and substantially greater than the real thickness.

Abstract: Electromechanical protection cutting apparatus comprising a magnetic tripping device and an arc-breaking screen which may be interleaved between at least one fixed contact and one movable contact during an opening caused by the tripping device. The stop (24) associated with the casing (11) of the apparatus to receive the breaking screen (12) is deformable and so arranged as not to restore immediately to the screen the kinetic energy received therefrom.

Abstract: The support piece of a circuit-breaker's movable contact assembly has a one piece structure including a rigid sole piece carrying the mobile contacts and a resilient blade facing the sole piece, at a distance therefrom, and forming a contact pressure spring.

Abstract: The device for locking the manual control lever (14) of an electrical appliance such as a switch comprises two adjacent portions (1) pivotally joined together by means of a hinge portion (2), fastening means (3) each extending along an edge portion located in spaced relation to the hinge portion (2), at least one bearing surface (4) provided on one of the adjacent portions (1) and at least one locking orifice (5) formed in each adjacent portion and so arranged as to come into position in register with the corresponding locking orifice (5) of the other adjacent portion (1) when the device is in the locking position. The device can then be maintained in the locking position by the shackle of a padlock engaged in one of the orifices (5) or by a lead-sealed wire.

Abstract: A connection means serves for the electrical coupling of ends of bus bars situated in protection sheaths, and has clips under the action of resilient members and associated with each phase to be connected, the clips being actuated by as many locking means as there are phases to be coupled. The heads of the locking means have a shape and arrangement such that the mechanical association of the upstream and downstream sheath ends can only be effected in the open state of the clips, while the positive closing of the device can only be effected in the inverse state.