Abstract: An electromagnetic actuator includes a fixed body, a moving part forming a magnetic core of the actuator and being movable in translation with respect to the fixed body between a retracted position and a deployed position, a magnetic piece forming a permanent magnet adjusted to generate a first magnetic force holding the moving part in the retracted position, and a coil adjusted to engender a second magnetic force opposed to the first magnetic force when the coil is supplied with an electrical excitation current. The moving part includes one or more notches formed in a body of the moving part.

Abstract: A new method for manufacturing a ferromagnetic part for an electromagnetic contactor, the ferromagnetic part having both particularly high impact mechanical durability, good ferromagnetic properties and good corrosion resistance, while integrating a non-magnetic gap. The method includes the following successive steps: a step a) of supplying a soft ferromagnetic metal blank part; and a step b) of electroless nickel plating at least one section of the blank part in order to obtain the ferromagnetic part, the section of which is surface coated with a nickel surface layer, with the obtained ferromagnetic part including the soft ferromagnetic metal, which, for at least one electroless nickel plated section, is disposed under the nickel surface layer.

Abstract: This monitoring unit (1) for monitoring an electrical circuit breaker (D) includes: a central body including: an interconnection device (120) capable of receiving primary voltages (V1) from the circuit breaker, and comprising an electrical power circuit (1220) for converting the primary voltages to secondary voltages (V2); a control device (110), for measuring the secondary voltages (V2) delivered by the power circuit (1220), a removable electrical power supply module (20), comprising a power converter (203), configured to transform the collected primary voltages (V1) into an additional secondary voltage (V2?) and to supply electrical power to a shared electrical power supply bus (1102) of the control device (110).

Abstract: An electromagnetic actuator includes a fixed body, a moving part forming a magnetic core of the actuator and being movable in translation with respect to the fixed body between a retracted position and a deployed position, a magnetic piece forming a permanent magnet adjusted to generate a first magnetic force holding the moving part in the retracted position, and a coil adjusted to engender a second magnetic force opposed to the first magnetic force when the coil is supplied with an electrical excitation current. The moving part includes one or more notches formed in a body of the moving part.

Abstract: A new method for manufacturing a ferromagnetic part for an electromagnetic contactor, the ferromagnetic part having both particularly high impact mechanical durability, good ferromagnetic properties and good corrosion resistance, while integrating a non-magnetic gap. The method includes the following successive steps: a step a) of supplying a soft ferromagnetic metal blank part; and a step b) of electroless nickel plating at least one section of the blank part in order to obtain the ferromagnetic part, the section of which is surface coated with a nickel surface layer, with the obtained ferromagnetic part including the soft ferromagnetic metal, which, for at least one electroless nickel plated section, is disposed under the nickel surface layer.

Abstract: This monitoring unit (1) for monitoring an electrical circuit breaker (D) includes: a central body including: an interconnection device (120) capable of receiving primary voltages (V1) from the circuit breaker, and comprising an electrical power circuit (1220) for converting the primary voltages to secondary voltages (V2); a control device (110), for measuring the secondary voltages (V2) delivered by the power circuit (1220), a removable electrical power supply module (20), comprising a power converter (203), configured to transform the collected primary voltages (V1) into an additional secondary voltage (V2?) and to supply electrical power to a shared electrical power supply bus (1102) of the control device (110).

Abstract: A module including at least two electrical components such as thyristors including a temperature sensor soldered on two conducting strips on a flat cable formed by a flexible dielectric plastic film glued onto the metallic electrode forming the top of one of the components and approximately at its center.