Abstract: The invention relates to an electrical busbar for transportation and distribution of electrical power comprising several parallel, metal conducting bars spaced out from one another inside a metal enclosure, each conducting bar having a cross-section of elongate shape. At least one conducting bar is provided with a thickness near to the centre of the cross-section of said conducting bar that is greater than thickness of at least one of the ends of the cross-section of said conducting bar.

Abstract: The present invention concerns an electric power transmission and distribution system including transmission components each having several parallel, insulated transmission conductors laid against each other, and the ends of which are connected by a terminal block fitted with a tap-off device. This system includes at least one distribution component, having parallel distribution conductors spaced apart from each other, and one at least of the two ends of which is connected to a tap-off device, with no additional means of electrical protection against current overloads. The cross-section of the distribution conductors is smaller than the cross-section of the transmission conductors.

Abstract: The present invention concerns an electric power transmission and distribution system including transmission components (10) each having several parallel, insulated transmission conductors (11) laid against each other, and the ends of which are connected by a terminal block (15) fitted with a tap-off device (14). This system includes at least one distribution component, having parallel distribution conductors (21) spaced apart from each other, and one at least of the two ends of which is connected to a tap-off device (14), with no additional means of electrical protection against current overloads. The cross-section of the distribution conductors (21) is smaller than the cross-section of the transmission conductors (11).

Abstract: A remote-control system, in particular for lighting, is provided for premises incorporating controllable distribution zones with variable conformations, which system comprises, in the same zone to be controlled, at least one transmitter controlling a plurality of receivers each having receiver address coding means and means for controlling user appliances. In each of the receivers of the same zone to be controlled an address is coded which is assigned thereto in a pre-established fixed order and which is different form one receiver to another, whereas in the transmitter of the same zone, the list of the receivers which it controls is coded.

Abstract: The invention relates to a device for assembling modular blocks of electric equipment side by side. The two molded cases of modular elements are first of all coupled together in the manner of a hinge by means of two hooks which fit respectively into two mating housings, then are applied one against the other by pivoting one of the cases, and are finally locked together by means of a flexible tongue which snap-fits on to a mating part of the other case.

Abstract: An additive block is provided which may be coupled to a circuit breaker comprising two separable contacts and a resettable tripping mechanism controlled by a thermal trip and/or a magnetic trip. It comprises an auxiliary tripping and/or signalling member, a connecting mechanism between the tripping mechanism of the circuit breaker and the auxiliary member and a manual resetting member cooperating with the connecting mechanism for resetting the active part of the mechanism associated with said auxiliary member in its original position after tripping of the circuit breaker. The connecting mechanism has an interlocking piece which may assume two positions corresponding to engagement and disengagement of the circuit breaker and cooperating in its first position with the resetting member for preventing manual actuation thereof.

Abstract: The invention relates to a quick make and break switch, particularly to measures which permit the positive opening of the normally closed contacts if the contacts in question are welded, and then to utilize the measures taken to make possible the opening of contacts even in the case where the elastic element necessary for rapid opening is fractured.According to the invention, this is achieved in that the rocking lever has a second arm whose second end arranged opposite the first end is located in the vicinity of the movable contact and is supported beneath the inverter member in the form of a rigid bracket if the latter has not switched under the action of the elastic blade at the time when alignment is performed and in that the lever pivot is located substantially equidistantly from the push-button of the second end.