Abstract: A small-sized load-break switching device for a busbar system includes shunt resistors which are arranged close to the connection to the busbar system. A voltage drop over the shunt resistors is analysed to determine a current value flowing through the load-break switching device.

Abstract: A power supply module for rear-side power supply of a power distribution busbar system comprising a number of busbars for distribution of electrical power for busbar components connectable to said busbars, said rear side power supply module comprising at least one clamping block having a number of clamping contacts adapted to clamp electrical conductors to said clamping block and comprising a number of electrically conductive and touch-protected intermediate bars provided between the at least one clamping block and a number of touch-protected electrical contacts provided at a front side of said power supply module and adapted to establish an electrical connection between the busbars of said power distribution busbar system and the intermediate bars of said power supply module.

Abstract: A low-voltage device for electrical distribution boards and switching cabinet installations with components comprised in a housing of the low-voltage device, wherein the housing of the low-voltage device comprises a mounting interface for mounting the housing to a corresponding mating interface of the electrical distribution board or the switching cabinet or to a component installed in the electrical distribution board or to a component installed in the switching cabinet; a display housing portion of the housing, which is provided for a display unit of the low-voltage device and comprises one or more flexibly formed bendable and foldable display units, wherein the flexible display unit is provided bent to fit a contour of the display housing portion of the housing of the low-voltage device or is provided folded on the display housing portion of the housing of the low-voltage device and can be unfolded there to enlarge a display area of the display unit.

Abstract: A method for detection of a fuse failure of a protective fuse used to protect an associated load against overcurrent and/or against overload includes the steps of: measuring electrical current flowing through the protective fuse in a current path to the load by means of a current sensor element; determining one or more failure indicators adapted to indicate a possible failure of the protected fuse on the basis of the measured electrical current; and detecting automatically a failure of the protective fuse if the determined at least one failure indicator indicates a possible failure of the protective fuse and if the electrical current stopped to flow through the protective fuse or is below a predefined current threshold value.

Abstract: A fuse holder provides a safe device for connecting fuses to a three-phase busbar device. Each phase includes a corresponding load conductor and line conductor mounted within a housing. A mechanical lock is provided for each phase that locks a knife of the fuse to one of the conductors for the phase. In a further aspect, the fuse knives are frictionally locked within the housing. In both the mechanical lock and frictional lock, a release mechanism is provided that can be activated by a screwdriver to release the fuse knives from the fuse holder. In another aspect, certain conductors are provided with heat dissipation wings that contact the housing to dissipate heat generated by current flowing through the conductor.

Abstract: A method for detection of a fuse failure of a protective fuse used to protect an associated load against overcurrent and/or against overload includes the steps of: measuring electrical current flowing through the protective fuse in a current path to the load by means of a current sensor element; determining one or more failure indicators adapted to indicate a possible failure of the protected fuse on the basis of the measured electrical current; and detecting automatically a failure of the protective fuse if the determined at least one failure indicator indicates a possible failure of the protective fuse and if the electrical current stopped to flow through the protective fuse or is below a predefined current threshold value.

Abstract: A touch protected busbar system (TP-BSYS) includes at least one hybrid busbar (1) having a current-carrying rail profile (2) and a contact-receiving rail profile (3) providing contact openings (4) configured to receive protruding electrical contacts (6) of electrical devices (ED-A) to be connected to the touch protected busbar system (TP-BSYS). The at least one hybrid busbar (1) is at least partially covered by electrical isolating touch protection elements (TPE) of the touch protected busbar system (TP-BSYS) and/or at least partially encapsulated by an electrical isolating layer.

Abstract: A touch protected busbar system (TP-BSYS) comprising at least one hybrid busbar (1) having a current-carrying rail profile (2) and a contact-receiving rail profile (3) providing contact openings (4) configured to receive protruding electrical contacts (6) of electrical devices (ED-A) to be connected to said touch protected busbar system (TP-BSYS), wherein the at least one hybrid busbar (1) is at least partially covered by electrical isolating touch protection elements (TPE) of said touch protected busbar system (TP-BSYS) and/or at least partially encapsulated by an electrical isolating layer.

Abstract: A fuse holder provides a safe device for connecting fuses to a three-phase busbar device. Each phase includes a corresponding load conductor and line conductor mounted within a housing. A mechanical lock is provided for each phase that locks a knife of the fuse to one of the conductors for the phase. In a further aspect, the fuse knives are frictionally locked within the housing. In both the mechanical lock and frictional lock, a release mechanism is provided that can be activated by a screwdriver to release the fuse knives from the fuse holder. In another aspect, certain conductors are provided with heat dissipation wings that contact the housing to dissipate heat generated by current flowing through the conductor.

Abstract: Adapter device (1) for connecting at least one electrical device (2) adapted for a busbar subsystem (11, 12) to a busbar main system (7), wherein the adapter housing (4) of the adapter device (1) comprises a busbar main interface (22) on a rear side of the housing for electromechanical contacting of busbars (6) of the busbar main system (7) and one or more busbar sub-interfaces on a front side of the housing, which are provided for placing the at least one electrical device (2) on the adapter device (1) and for its electrical connection to the busbar main system (7) via busbars (15, 16) of the respective busbar sub-system (11, 12) integrated in the adapter housing (4) or attached thereto and via electrical conductors (28) contained in the adapter housing (4).

Abstract: A busbar board (1) for connection of devices (11) to a power busbar system, wherein the busbar board (1) comprises a front side touch protection cover plate (2) having feedthrough openings (7) for electrical connection contacts (13) of devices (11) to be connected to the busbar board (1), wherein the touch protection cover plate (2) is adapted to cover power busbars (6) having contact openings (5) lying directly beneath the feed-through openings (7) of the touch protection cover plate (2) and comprising a touch protection base plate (3) connected to said touch protection cover plate (2), wherein the touch protection base plate (3) covers the power busbars (6) enclosed by the busbar board (1) from behind, wherein a power feed-in of electrical power into the power busbars (6) enclosed by the busbar board (1) is provided by power feed-in plugs (10) being pluggable into socket (26) of the touch protection base plate (3) of the busbar board (1).

Abstract: An elongated busbar board for connection of devices to a power busbar system comprises a front side touch protection cover plate consisting of touch protection cover plate segments made of an electrically insulating material and having feedthrough openings The touch protection cover plate is adapted to cover power busbars made of an electrically conductive material having contact openings lying directly beneath the feedthrough openings and comprises a touch protection base plate connected to the touch protection cover plate and consisting of touch protection base plate segments made of the electrically insulating material and adapted to cover the power busbars enclosed by the elongated busbar board from behind. A thermal expansion difference caused by different thermal expansion coefficients of the electrically insulating material and of the electrically conductive material is compensated.

Abstract: A fuse holder provides a safe device for connecting fuses to a three-phase busbar device. Each phase includes a corresponding load conductor and line conductor mounted within a housing. A mechanical lock is provided for each phase that locks a knife of the fuse to one of the conductors for the phase. In a further aspect, the fuse knives are frictionally locked within the housing. In both the mechanical lock and frictional lock, a release mechanism is provided that can be activated by a screwdriver to release the fuse knives from the fuse holder. In another aspect, certain conductors are provided with heat dissipation wings that contact the housing to dissipate heat generated by current flowing through the conductor.

Abstract: A busbar board (1) for connection of devices (11) to a power busbar system, wherein the busbar board (1) comprises a front side touch protection cover plate (2) having feedthrough openings (7) for electrical connection contacts (13) of devices (11) to be connected to the busbar board (1), wherein the touch protection cover plate (2) is adapted to cover power busbars (6) having contact openings (5) lying directly beneath the feed-through openings (7) of the touch protection cover plate (2) and comprising a touch protection base plate (3) connected to said touch protection cover plate (2), wherein the touch protection base plate (3) covers the power busbars (6) enclosed by the busbar board (1) from behind, wherein a power feed-in of electrical power into the power busbars (6) enclosed by the busbar board (1) is provided by power feed-in plugs (10) being pluggable into socket (26) of the touch protection base plate (3) of the busbar board (1).

Abstract: A method for detection of a failure of a protective fuse used to protect an associated load against overcurrent and/or against overload, wherein the method includes the steps of: measuring an electrical current, flowing through the protective fuse to the load by means of a current sensor element, determining a thermal energy generated in the protective fuse depending on the measured electrical current, and automatically detecting a failure of the protective fuse if the determined thermal energy exceeds a predetermined threshold value and if the electrical current, measured by the current sensor element has stopped flowing through said protective fuse.

Abstract: A fuse holder provides a safe device for connecting fuses to a three-phase busbar device. Each phase includes a corresponding load conductor and line conductor mounted within a housing. A mechanical lock is provided for each phase that locks a knife of the fuse to one of the conductors for the phase. In a further aspect, the fuse knives are frictionally locked within the housing. In both the mechanical lock and frictional lock, a release mechanism is provided that can be activated by a screwdriver to release the fuse knives from the fuse holder. In another aspect, certain conductors are provided with heat dissipation wings that contact the housing to dissipate heat generated by current flowing through the conductor.

Abstract: An elongated busbar board (1) for connection of devices (11) to a power busbar system comprises a front side touch protection cover plate (2) consisting of touch protection cover plate segments (2-i) made of an electrically insulating material and having feedthrough openings (7) for electrical connection contacts (13A) of devices (11) to be connected to the elongated busbar board.

Abstract: A hybrid busbar (1) for a busbar system, said hybrid busbar (1) comprising a current carrying rail profile (2) adapted to carry an electrical current with a predefined high current amplitude and at least one contact receiving rail profile (3) having a plurality of equally spaced contact openings (4) configured to receive protruding electrical contacts (6) of electrical devices (ED-A) to be connected to said busbar system, wherein the current carrying rail profile (2) and the contact receiving rail profile (3) are connected with each other to form said hybrid busbar (1) providing at least one bounding geometry with a rectangular cross section (CS), wherein the hybrid busbar (1) can be engaged from behind by hook-shaped mounting latches (7) of electrical devices (ED-B) to be connected to said busbar system.

Abstract: Adapter device (1) for connecting at least one electrical device (2) adapted for a busbar subsystem (11, 12) to a busbar main system (7), wherein the adapter housing (4) of the adapter device (1) comprises a busbar main interface (22) on a rear side of the housing for electromechanical contacting of busbars (6) of the busbar main system (7) and one or more busbar sub-interfaces on a front side of the housing, which are provided for placing the at least one electrical device (2) on the adapter device (1) and for its electrical connection to the busbar main system (7) via busbars (15, 16) of the respective busbar sub-system (11, 12) integrated in the adapter housing (4) or attached thereto and via electrical conductors (28) contained in the adapter housing (4).

Abstract: Device for securing an object on a rail, having an elongated base body which may be placed transversely on the rail and which at one end comprises an integrated actuating element which, when actuated by a user, moves opposing latching hooks which are integrated in the actuating element and are suitable for engaging behind the rail, in opposite directions.