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 disclosure relates to a protective device, for example an overload relay, for attaching the same to a switching device, such as a contactor. The housing wall of the protective device has at least one first and one second recess each on a first side facing the switching device, and on a second side facing away from the switching device, and the recesses are connected to each other such that the switching device is accessible through the recesses for the purpose of connecting a terminal lead.

Abstract: The disclosure relates to an electrical switching device, in particular a thermal relay having at least one contact point in which, in a first position, the contact point is open and, in a second position, the contact point is closed, having a swivelling contact carrier on which the at least one moving contact piece is held and having an actuator for driving the contact carrier. The actuator is a swivel element, which can rotate about a first axis of rotation, said swivel element being made up of two partial elements, which can be slid in mutually opposing directions and are pushed apart by spring force, of which the first partial element is rotatably mounted and the second partial element acts together with the contact carrier at its free end.

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 disclosure proposes an electrical switching device having at least one contact point having at least one drive, which opens the contact point directly and/or via a switching mechanism with a latching point and which drive has an element having a predetermined shape, which element consists of a shape memory alloy, which changes its shape under the influence of an electromagnetic field and, in the process, opens or closes a contact point or double contact point or unlatches a switching mechanism.

Abstract: The disclosure relates to an electrical switching device, in particular a thermal relay having at least one contact point in which, in a first position, the contact point is open and, in a second position, the contact point is closed, having a swivelling contact carrier on which the at least one moving contact piece is held and having an actuator for driving the contact carrier. The actuator is a swivel element, which can rotate about a first axis of rotation, said swivel element being made up of two partial elements, which can be slid in mutually opposing directions and are pushed apart by spring force, of which the first partial element is rotatably mounted and the second partial element acts together with the contact carrier at its free end.

Abstract: The invention relates to switching equipment comprising a housing, at least one contact point that has a fixed and mobile contact part and an electromagnetic trip device comprising a trip coil and a trip armature. Said equipment is wherein the trip armature is configured from a material with magnetic shape memory properties. According to the invention, when a short-circuit occurs, the trip armature is deformed by the influence of the magnetic field of the trip coil, thus causing the contact point to open.

Abstract: The invention proposes an electrical service device, in particular line circuit breaker or motor circuit breaker, having a housing having connection means (20, 21) for the purpose of connecting busbars and/or connection lines on at least one end side, having at least one switching contact having a fixed and a movable switching contact piece, an arc (6) being produced in an arc prechamber area (5) between said fixed and movable switching contact pieces in the event of a disconnection, said arc entering a current-limiting arc-quenching device (7) via arc guide rails. Prechamber plates (9, 12) are arranged in the region of the arc prechamber area (5), return-flow channels (10, 13) being formed by said prechamber plates (9, 12) from the arc-quenching device (7) to the arc prechamber area (5) between the housing wall (2) and the prechamber plates (9, 12).

Abstract: The invention proposes an electrical service device, in particular line circuit breaker or motor circuit breaker, having a housing having connection means (20, 21) for the purpose of connecting busbars and/or connection lines on at least one end side, having at least one switching contact having a fixed and a movable switching contact piece, an arc (6) being produced in an arc prechamber area (5) between said fixed and movable switching contact pieces in the event of a disconnection, said arc entering a current-limiting arc-quenching device (7) via arc guide rails. Prechamber plates (9, 12) are arranged in the region of the arc prechamber area (5), return-flow channels (10, 13) being formed by said prechamber plates (9, 12) from the arc-quenching device (7) to the arc prechamber area (5) between the housing wall (2) and the prechamber plates (9, 12).

Abstract: An electrical service distribution board is accommodated in a housing, has a feed conductor that is inserted into the housing and has outgoer conductors that lead to individual loads. Electrical service devices with different protection tasks, such as fault current protection, short circuit or over-current protection and the like, which can be connected to the feed conductor and to the outgoer conductors by a plug connection via a connection system which contains connection conductors connected to them. A mounting plate is providing for holding the service devices, with the connection conductors disposed underneath the mounting plate and the mounting plate having openings into which plug elements which are disposed on the service devices can be inserted.

Abstract: An arc quenching configuration for an electrical switching device has an arcing chamber in which an arc is produced between a stationary contact piece and a moving contact piece during a switching operation. An arc splitter stack is provided and has a number of arc splitter plates and into which the arc is passed via guide rails. At least one plate composed of an insulating material is disposed in or adjacent to the arc splitter stack, an external circumference of the plate does not project beyond the external circumference of the arc splitter plates, and the plate has an internal recess.

Abstract: An arc quenching configuration is described for an electrical switching device. The configuration has an arcing chamber in which an arc is produced between a stationary contact piece and a moving contact piece during a switching operation. An arc splitter stack is provided and has a number of arc splitter plates and into which the arc is passed via guide rails. At least one plate composed of an insulating material is disposed in or adjacent to the arc splitter stack, an external circumference of the plate does not project beyond the external circumference of the arc splitter plates, and the plate has an internal recess.

Abstract: An electrical service distribution board is accommodated in a housing, has a feed conductor that is inserted into the housing and has outgoer conductors that lead to individual loads. Electrical service devices with different protection tasks, such as fault current protection, short circuit or over-current protection and the like, which can be connected to the feed conductor and to the outgoer conductors by a plug connection via a connection system which contains connection conductors connected to them. A mounting plate is providing for holding the service devices, with the connection conductors disposed underneath the mounting plate and the mounting plate having openings into which plug elements which are disposed on the service devices can be inserted.

Abstract: A magnetic release is described for an electrical switching device, such as a circuit breaker, which has a coil, a core located inside the coil, and an armature in the form of a plunger-type armature which can move inside the coil or in the form of a hinged armature. The coil is stamped and bent from sheet metal composed of an electrically highly conductive material. It has first webs that are located at a distance from one another in a first plane and second webs that are likewise located at the same distance from one another in a second plane. The webs each run parallel to one another and are offset with respect to one another in such a manner that the webs are disposed with connecting webs in a helical shape around a center axis, and on the inside form a through-opening for accommodating at least one core.

Abstract: An electrical service switching device includes a contact point, a moveable contact piece, an auxiliary switch associated with the contact point and having a coupling element and an auxiliary switch contact point coupled to the moveable contact piece, the coupling element actuating the auxiliary switch contact point, and a T-shaped housing. The housing has a transverse web with two trailing narrow-side walls and a fastening surface perpendicular to the two trailing narrow-side walls, a longitudinal web with a leading front surface parallel to the fastening surface, leading narrow-side walls on both sides of the leading front surface, the leading narrow-side walls perpendicular to the leading front surface, and two trailing front surfaces parallel to the fastening surface. At least one of the two trailing front surfaces connects the transverse web and the longitudinal web. The auxiliary switch is releasably attachable to the housing.

Abstract: A magnetic release is described for an electrical switching device, such as a circuit breaker, which has a coil, a core located inside the coil, and an armature in the form of a plunger-type armature which can move inside the coil or in the form of a hinged armature. The coil is stamped and bent from sheet metal composed of an electrically highly conductive material. It has first webs that are located at a distance from one another in a first plane and second webs that are likewise located at the same distance from one another in a second plane. The webs each run parallel to one another and are offset with respect to one another in such a manner that the webs are disposed with connecting webs in a helical shape around a center axis, and on the inside form a through-opening for accommodating at least one core.