The invention relates to a voltage limiting device which has an electromagnetically operable switching device for producing an electrical connection between a first cable terminal and a second cable terminal wherein a first electrical conductor connects the first cable terminal to the one terminal of the switching device and a second electrical conductor electrically connects the second cable terminal to the other terminal of the switching device. The voltage limiting device is characterized in that one of the two electrical conductors comprises an electrically conductive support plate. The expansion of the support plate in the width direction allows, in contrast to an electrical conductor which is characterized by a small width in relation to the length, a current displacement in the width direction. As a result, the forces acting on the conductive parts of the switching device are reduced and the switching contacts are relieved, as a result of which the electrical properties of the voltage limiting device are improved. As an electrical conductor, the support plate improves not only the electrical properties of the voltage limiting device, but as a mounting plate also simplifies the assembly and mounting of the individual components of the voltage limiting device.

A switching device for an encapsulated electric power distribution switchgear and an electric power distribution switchgear with at least one such switching device are disclosed. The switching device has a first electrically conducting housing which encloses an actuator mechanism for a first contact assembly and a second electrically conducting housing which encloses a second contact assembly. The first electrically conducting housing is arranged at a distance from the second electrically conducting housing. The switching device further has a third housing which is electrically insulating and arranged between the first electrically conducting housing and the second electrically conducting housing. The switching device is a puffer type switch.

An electrical switch includes a fixed contact member and a plurality of movable contact fingers that pivot into and out of engagement with the fixed contact member. The electrical switch also includes a fixed magnetic member and a plurality of U-shaped magnetic members housing the plurality of movable contact fingers. Upon occurrence of a fault condition, each of the plurality of U-shaped magnetic members is magnetically pulled towards the fixed magnetic member, without contacting the fixed magnetic member, such that each of the plurality of movable contact fingers is held in engagement with the fixed contact member.

A rotary electronic component includes a base member, a shaft attached to the base member so as to be rotatable around an axis, and a regulating member that regulates a rotation angle of the shaft. The shaft includes a flange section including a projecting sections and recessed sections alternately disposed in a circumferential direction. The regulating member includes a contact member in contact with the projecting sections and the recessed sections of the flange section of the shaft, and a biasing member that biases the contact member radially inwardly toward the shaft.

An article comprising a bulk metallic glass skin having one or more functional features integrated therein is described and a method of forming the same is described. The one or more functional features exhibit a variation in stiffness between the one or more functional features and the bulk metallic glass skin that is defined by an applied force over an achieved deformation. The stiffness of each of the one or more functional features is at least 1000 times less than an average stiffness of the bulk metallic glass skin.

A hermetic terminal for a high-capacity relay includes: a metal container provided with a through hole; a pipe lead inserted through the through hole; an insulating glass hermetically sealing the metal container and the pipe lead; and a terminal base passing through and hermetically secured to the pipe lead and made of a low-resistance metal.

A power distribution switchgear including a housing to which a switch is mounted, housing has an opening, the first and second electric contact connected to a first and second conductors. A rotating operating shaft of inserted into the opening, and an actuator having a first end coupled to the shaft and a second end coupled to the second contact. The actuator and shaft made of an electrically insulating material. The shaft supported in the housing by the actuator member. The interface is located at a distance D from the longitudinal axis Y of the shaft that is longer than a distance d between axis Y and a circumferential edge that delimits the opening.

A safety switch for guarding access comprises a case housing switching means suitable for being connected to one or more power and/or service circuits of the machine or plant for their opening and/or closing upon interaction with an actuating device, a locking/unlocking mechanism of the actuating device housed in the case and provided with a movable locking/unlocking pin along a longitudinal direction to protrude at least partially with one of its ends from the case, a head fixed to the case and configured to allow the interaction of the locking/unlocking pin with the actuating device, mutual coupling means between the case and the head suitable to allow their mutual stable fixing by relative sliding along at least one sliding direction transverse to the longitudinal direction.

A power distribution switchgear including a housing to which a switch is mounted, housing has an opening, the first and second electric contact connected to a first and second conductors. A rotating operating shaft of inserted into the opening, and an actuator having a first end coupled to the shaft and a second end coupled to the second contact. The actuator and shaft made of an electrically insulating material. The shaft supported in the housing by the actuator member. The interface is located at a distance D from the longitudinal axis Y of the shaft that is longer than a distance d between axis Y and a circumferential edge that delimits the opening.

A fault current limiter arrangement for a low, medium and high voltage electricity grid, including a fault current limiter unit which is arranged in line with a circuit breaker unit including a fixed electrical contact which is connected to a lower electrical terminal and a movable electrical contact which is connected to an upper electrical terminal, in order to interrupt the current flow after the fault current limiter unit has limited the current flow in a detected fault event. The fault current limiter unit includes a movable electrical sliding contact part which is electrically arranged between the upper electrical terminal of the circuit breaker unit and the movable electrical contact of the circuit breaker unit, and which is movable between a short circuit position adjacent to the upper electrical terminal and a remote position far from the upper electrical terminal for providing a maximum electrical resistance for the current flow.