Abstract: A device having an armature including a main wall; a rotary part intended to be mechanically coupled to a control shaft of an electrical switching unit; a bar integral with the rotary part and able to rotate between a first position and a second position and extending through a slot in the main wall; a position sensor having a movable contact pushed into a retracted position by the bar when the bar is in the first position; a stabilizing device having a resilient strip extending along the slot in order to exert a retaining force on the bar when it is in the first position.

Abstract: A device for switching an electric current with separable electrical contacts includes a switching mechanism including: a switching shaft that is coupled to a mobile electrical contact; a trip hook that is pivotably mounted on a fixed support of the mechanism; a linking system coupling the switching shaft to the trip hook. The linking system includes a first pair of connecting rods that are pivotably mounted on the trip hook and a second pair of connecting rods that are mounted so as to pivot with a crank of the switching shaft. The first connecting rods are connected to the second connecting rods with a single axis of articulation which forms a pivot link between the first connecting rods and the second connecting rods.

Abstract: A device for switching an electric current with separable electrical contacts includes a switching mechanism including: a switching shaft that is coupled to a mobile electrical contact; a trip hook that is pivotably mounted on a fixed support of the mechanism; a linking system coupling the switching shaft to the trip hook. The linking system includes a first pair of connecting rods that are pivotably mounted on the trip hook and a second pair of connecting rods that are mounted so as to pivot with a crank of the switching shaft. The first connecting rods are connected to the second connecting rods with a single axis of articulation which forms a pivot link between the first connecting rods and the second connecting rods.

Abstract: A device having an armature including a main wall; a rotary part intended to be mechanically coupled to a control shaft of an electrical switching unit; a bar integral with the rotary part and able to rotate between a first position and a second position and extending through a slot in the main wall; a position sensor having a movable contact pushed into a retracted position by the bar when the bar is in the first position; a stabilizing device having a resilient strip extending along the slot in order to exert a retaining force on the bar when it is in the first position.

Abstract: An air circuit breaker includes two separable electrical contacts connected to electric current input and output terminals; and a chamber for quenching an electric arc, including a stack of splitter plates that are spaced apart from one another, and lateral walls placed on either side of the stack and including a thermosetting-resin impregnated polyamide woven and being devoid of glass fibres. The quenching chamber furthermore includes protective elements made of crosslinked polyamide, the elements being placed in junction zones between the lateral walls and holding plates, the protective elements covering corners of the splitter plates, which corners are adjacent to the lateral walls, so as to separate these corners of the splitter plates from the electrical contacts.

Abstract: A pluggable electrical device for switching an electrical current includes a static frame including a rigid backplate fastened to the frame; connection terminals able to be connected to an electrical installation; and a removable portion including a device for switching an electrical current. The backplate is made of a thermosetting polymer and includes reinforcing beams integrated into the backplate and extending in a vertical direction.

Abstract: An air circuit breaker includes two separable electrical contacts connected to electric current input and output terminals; and a chamber for quenching an electric arc, including a stack of splitter plates that are spaced apart from one another, and lateral walls placed on either side of the stack and including a thermosetting-resin impregnated polyamide woven and being devoid of glass fibres. The quenching chamber furthermore includes protective elements made of crosslinked polyamide, the elements being placed in junction zones between the lateral walls and holding plates, the protective elements covering corners of the splitter plates, which corners are adjacent to the lateral walls, so as to separate these corners of the splitter plates from the electrical contacts.

Abstract: A pluggable electrical device for switching an electrical current includes a static frame including a rigid backplate fastened to the frame; connection terminals able to be connected to an electrical installation; and a removable portion including a device for switching an electrical current. The backplate is made of a thermosetting polymer and includes reinforcing beams integrated into the backplate and extending in a vertical direction.