Abstract: Load limiter making it possible to set off an electric signal subsequent to a tensile stress exceeding a certain maximum value. It is based on the principle of rotation by axial stretching of a twisted part, the said rotation deplacing an armature of an electric contact switch.

Abstract: Locking device of low control power for an electrical device having, between the locked part and the locking control element, a locking assembly having a rolling movement. This locking assembly has a rotating bearing and at least one coaxial disk is installed floating in a yoke connected with the control element. The device is installed more particularly on circuit-breakers for which it ensures accurate controlling, low consumption of power and high reliability.

Abstract: A device is disclosed for mounting an electrical apparatus on standard channel iron comprising a stand portion, a mechanical gripping portion and an electrical contact portion. One edge of the channel iron is engaged by a notch in said stand portion while the opposite edge is engaged between the stand portion and one end of the mechanical gripping portion.The other end of the mechanical gripping portion engages the electrical apparatus and serves to correctly position such apparatus. The electrical contact portion is inserted into a corresponding connector in the electrical apparatus.

Abstract: This device comprises means for detecting, respectively, overcharges, by means of bimetallic strips and short-circuiting, by means of mobile magnetic plates effecting independently from each other the controlling of the switching off of a circuit-breaker for the protection of a circuit. The thermal safety means operate through a mechanical power amplifier comprising a cage with uprights, a rotating catch dependent on the thermal phase-detectors and a plunger transmitting the power of a spring to effect the switching off.