Abstract: An installation switching device includes: a housing; and at least one contact clamp, which is arranged in the housing, for connecting at least one electrical conductor through a conductor insertion opening that is provided in the housing, the contact clamp including a clamping frame that has a rectangular cross section and a clamping screw that engages in a first narrow end side of the clamping frame and a clamping end of the clamping screw being cooperating with a section of a contact rail that is fixedly mounted in the housing of the installation switching device, the section being located within the clamping frame, so that a second narrow end side that lies opposite the first narrow end side and is connected thereto via two longitudinal sides that lie opposite one another presses an inserted connecting conductor against a surface of the contact rail that is remote from the clamping screw.

Abstract: An installation switching device includes: a housing; and at least one contact clamp, which is arranged in the housing, for connecting at least one electrical conductor through a conductor insertion opening that is provided in the housing, the contact clamp including a clamping frame that has a rectangular cross section and a clamping screw that engages in a first narrow end side of the clamping frame and a clamping end of the clamping screw being cooperating with a section of a contact rail that is fixedly mounted in the housing of the installation switching device, the section being located within the clamping frame, so that a second narrow end side that lies opposite the first narrow end side and is connected thereto via two longitudinal sides that lie opposite one another presses an inserted connecting conductor against a surface of the contact rail that is remote from the clamping screw.

Abstract: The invention describes an arc-quenching arrangement for an electrical service switching device, with a fixed contact piece, a movable contact piece, with an arc splitter stack having arc splitter plates, each arc splitter plate having a cutout which is open towards the arc formation point, has a V-shaped notch and tapers in the form of a funnel in the arc running direction, and the arc being guided into the arc splitter stack via a first arc guide rail, which is associated with the fixed contact piece, and a second arc guide rail, which is associated with the movable contact piece. The first arc guide rail has a first, rectangular section, which faces the arc formation location, and a second section, which adjoins the first section and is in the form of a rectangular trapezium and whose first limb extends at an angle with respect to the mid-longitudinal axis of the first section and away therefrom.

Abstract: An electrical service device having a housing is disclosed, in which voltage-carrying components are accommodated which are accessible via openings in the housing of the service device. At least one opening can have at least one wall-like insulating barrier associated with it which consists of an electrically insulating material and with which it is possible for the air gaps and leakage paths between two adjacent openings to be increased. The insulating barrier can be fixed to the housing of the service device.

Abstract: The invention describes an arc-quenching arrangement for an electrical service switching device, with a fixed contact piece, a movable contact piece, with an arc splitter stack having arc splitter plates, each arc splitter plate having a cutout which is open towards the arc formation point, has a V-shaped notch and tapers in the form of a funnel in the arc running direction, and the arc being guided into the arc splitter stack via a first arc guide rail, which is associated with the fixed contact piece, and a second arc guide rail, which is associated with the movable contact piece. The first arc guide rail has a first, rectangular section, which faces the arc formation location, and a second section, which adjoins the first section and is in the form of a rectangular trapezium and whose first limb extends at an angle with respect to the mid-longitudinal axis of the first section and away therefrom.

Abstract: The invention relates to an electric installation device comprising a housing (11) that contains current conductive components, said components being accessible via openings (27; 60, 61) in the housing (11) of the installation device. At least one partition-type insulation barrier consisting of electrically insulating material can be allocated to at least one opening (27; 60, 61), thus increasing the clearances and creepage distances between two neighbouring openings (27; 60, 61). The insulation barrier can be fixed to the housing (11) of the installation device.

Abstract: The invention relates to a connecting element for connecting two installation units that are positioned side by side with adjacent broad sides, in particular, circuit-breakers residual-current circuit-breakers or similar, at least one of said units having a narrower module width in relation to the normal module width of an installation unit. Said element can be used for example to connect an auxiliary switch to a circuit-breaker or residual-current circuit-breaker, or an auxiliary switch to a starting-circuit breaker, or an additional auxiliary switch to starting-circuit breaker, or an additional auxiliary switch to an auxiliary switch. The connecting element comprises a base body section with two sprung arms that project in parallel. Lugs that project radially outwards and follow diametrically opposed sawtooth lines are formed on the free ends of said arms and the end of the connecting element that lies opposite said arms comprises a peripheral strip that acts as the head.

Abstract: The invention describes a spring force terminal (1) for connecting electrical conductors (128), having a contact frame (3, 125), in which an electrical conductor (128) can be clamped against the contact frame (3, 125) by means of a clamping spring (7, 121) extending in the form of an arc over the contact frame (3, 125), and which is characterized in that the contact frame (3, 125) has two or more plug openings (9, 11, 124) and a retaining opening (13, 133), in that the clamping spring (7, 121) is held at a first free end in the retaining opening (13, 133) on the contact frame (3, 125), in that, at its second free end, the clamping spring (7, 121) is divided into a number of finger-like projections (23, 25, 122) which corresponds to the number of plug openings (9, 11, 124) by means of one or more slot-like cutouts (17), and in that each of the projections (23, 25, 122) is passed through in each case one of the plug openings (9, 11, 124), and a conductor (128) can be clamped tightly in each of the plug openings

Abstract: A connection device or distribution equipment for electrical installation equipment, which can be built into installation equipment, preferably a household distribution box, in which the electrical connection between two bus bars (21, 31) built into a household distribution box (10) is produced by an electrical line connector (40) which runs in the interspace between the two base housings (20, 30) containing the bus bars (21, 31) and the back wall (11) of the household distribution box (10). Connection contact pieces (42a, 42b, 42c) are provided at both ends of the line connector (40), and can be brought into engagement by vertical introduction into the plug sockets (13) located on the upper edges (23, 33) of the base housings (20, 30), whereby the electrical contact is produced between the first bus bar (21) and the second bus bar (31).

Abstract: The invention describes a spring force terminal (1) for connecting electrical conductors (128), having a contact frame (3, 125), in which an electrical conductor (128) can be clamped against the contact frame (3, 125) by means of a clamping spring (7, 121) extending in the form of an arc over the contact frame (3, 125), and which is characterized in that the contact frame (3, 125) has two or more plug openings (9, 11, 124) and a retaining opening (13, 133), in that the clamping spring (7, 121) is held at a first free end in the retaining opening (13, 133) on the contact frame (3, 125), in that, at its second free end, the clamping spring (7, 121) is divided into a number of finger-like projections (23, 25, 122) which corresponds to the number of plug openings (9, 11, 124) by means of one or more slot-like cutouts (17), and in that each of the projections (23, 25, 122) is passed through in each case one of the plug openings (9, 11, 124), and a conductor (128) can be clamped tightly in each of the plug openings

Abstract: A connection device or distribution equipment for electrical installation equipment, which can be built into installation equipment, preferably a household distribution box, in which the electrical connection between two bus bars (21, 31) built into a household distribution box (10) is produced by an electrical line connector (40) which runs in the interspace between the two base housings (20, 30) containing the bus bars (21, 31) and the back wall (11) of the household distribution box (10). Connection contact pieces (42a, 42b, 42c) are provided at both ends of the line connector (40), and can be brought into engagement by vertical introduction into the plug sockets (13) located on the upper edges (23, 33) of the base housings (20, 30), whereby the electrical contact is produced between the first bus bar (21) and the second bus bar (31).

Abstract: A connection for two items of installation equipment lined up beside each other with their end or broad sides against each other, in particular line-protection circuit breakers, residual current circuit breakers and the like, whose housings are each formed from two shell-shaped housing parts. The connecting element has an approximately cylindrical base body with a first outer diameter onto which, on both sides, two radially springy spreading arms projecting axially in opposite directions are integrally molded. The outside diameter of the spreading arms is smaller than the outside diameter of the base body and free ends of the spreading arms have radially protruding lugs which, when assembled, latch in behind protrusions on the housings of the items of installation equipment located beside each other and to be connected by the connecting element.

Abstract: A connection for two items of installation equipment lined up beside each other with their end or broad sides against each other, in particular line-protection circuit breakers, residual current circuit breakers and the like, whose housings are each formed from two shell-shaped housing parts. The connecting element has an approximately cylindrical base body with a first outer diameter onto which, on both sides, two radially springy spreading arms projecting axially in opposite directions are integrally molded. The outside diameter of the spreading arms is smaller than the outside diameter of the base body and free ends of the spreading arms have radially protruding lugs which, when assembled, latch in behind protrusions on the housings of the items of installation equipment located beside each other and to be connected by the connecting element.