Abstract: An installation switching device has a housing and screw connecting clamp with an essentially frame-shaped clamping part having longitudinal faces, narrow faces and broad faces, a head-clamp screw received in a clamping part threaded aperture, and a current rail arranged fixed in the device extending through the frame-shaped clamping part interior, wherein a current rail broad face is oriented, as assembled, parallel to a clamping part broad face facing the head clamping screw, the screw supporting itself, screwed in, on the current rail, wherein consequently, the clamping part is displaceable in its longitudinal direction, parallel to the narrow face, relative to the current rail by further screwing in the head clamping screw so a connecting conductor can be fixedly clamped between the current rail face remote from the screw and the clamping part broad face remote from the screw, the housing having a screw receiving region guiding the screw head.

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 apparatus includes: a housing; at least one contact point; an exhaust air duct which in an upstream portion thereof receives arc gases of a switching arc that has been created at the at least one contact point, and by way of an exhaust air opening in a housing wall of the housing in a downstream portion of the exhaust air duct the exhaust air duct releases the arc gases into an environment of the housing; at least one thermal release; and a set screw for setting the at least one thermal release. The set screw at an activation end thereof has a formed element for contacting in a form-fitting manner a tool for rotating activation of the set screw. An operative end of the set screw is coupled to the at least one thermal release.

Abstract: An electrical installation switching device has an insulating material housing; a switching knob protruding beyond the housing on a housing front face and able to pivot between a switched-on and switched-off position about a first pivot axis; a magnetic short circuit current and/or a thermal excess current trigger; a contact site formed from a fixed and a moveable contact piece, a switching lock having a latching site and being triggerable by an excess and/or short circuit current using the trigger when unlatching the latching site; an operator pivotable between a release and an operating position about a second pivot axis, aligned parallel to the first pivot axis, switching knob having an operating contour, the operator and operating contour cooperating by triggering the switching lock using the trigger when the operator pivots about the second pivot axis to hold the knob in an intermediate position between the on and off position.

Abstract: An electrical service switching device includes: a housing in which at least one contact point is arranged, the housing having a first terminal connection area, in which a plug-in terminal is arranged and is configured for for the purpose of connecting the service switching device to a busbar, and a second terminal connection area, in which a screw terminal for the connection of connection conductors is arranged, the first and the second terminal connection area being formed on opposite narrow sides of the housing; and an arc quenching device associated with the at least one contact point and having an arc inlet side and an exhaust air side at which an exhaust air flow can exit. The exhaust air side of the arc quenching device is oriented towards the first terminal connection area in the housing interior.

Abstract: An installation switching apparatus includes: a housing; at least one contact point; an exhaust air duct which in an upstream portion thereof receives arc gases of a switching arc that has been created at the at least one contact point, and by way of an exhaust air opening in a housing wall of the housing in a downstream portion of the exhaust air duct the exhaust air duct releases the arc gases into an environment of the housing; at least one thermal release; and a set screw for setting the at least one thermal release. The set screw at an activation end thereof has a formed element for contacting in a form-fitting manner a tool for rotating activation of the set screw. An operative end of the set screw is coupled to the at least one thermal release.

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 has a housing and screw connecting clamp with an essentially frame-shaped clamping part having longitudinal faces, narrow faces and broad faces, a head-clamp screw received in a clamping part threaded aperture, and a current rail arranged fixed in the device extending through the frame-shaped clamping part interior, wherein a current rail broad face is oriented, as assembled, parallel to a clamping part broad face facing the head clamping screw, the screw supporting itself, screwed in, on the current rail, wherein consequently, the clamping part is displaceable in its longitudinal direction, parallel to the narrow face, relative to the current rail by further screwing in the head clamping screw so a connecting conductor can be fixedly clamped between the current rail face remote from the screw and the clamping part broad face remote from the screw, the housing having a screw receiving region guiding the screw head.

Abstract: An electrical installation switching device has an insulating material housing; a switching knob protruding beyond the housing on a housing front face and able to pivot between a switched-on and switched-off position about a first pivot axis; a magnetic short circuit current and/or a thermal excess current trigger; a contact site formed from a fixed and a moveable contact piece, a switching lock having a latching site and being triggerable by an excess and/or short circuit current using the trigger when unlatching the latching site; an operator pivotable between a release and an operating position about a second pivot axis, aligned parallel to the first pivot axis, switching knob having an operating contour, the operator and operating contour cooperating by triggering the switching lock using the trigger when the operator pivots about the second pivot axis to hold the knob in an intermediate position between the on and off position.

Abstract: An installation switching device includes a housing, a main contact point having an arc quenching chamber, an input terminal, an output terminal, an impact-style armature system configured to move the main contact point to an open position, a latching mechanism having a latching point and configured to open an isolating contact point disposed in a secondary current path parallel to a main current path, a main thermostatic bimetallic strip configured to act on the latching point to as to cause the main contact point to remain in the open position, a current limiting resistor disposed in the secondary current path, a selective thermostatic bimetallic strip disposed in the secondary current path and configured to act on the latching mechanism, a handle configured to act on the latching mechanism so as to open and close the main contact point, and a phase connecting rail.

Abstract: Exemplary embodiments are directed to an installation switching device, having a housing with a front side, a fastening side, narrow sides, and wide sides. The device also includes a screwless clamp terminal with a clamping spring for connecting conductors. The clamping spring is fixed in position in a clamp terminal chamber of the housing. The opening of the clamp terminal chamber can be partially covered by a clamp covering part which is pivotably connected to the housing. The clamp covering part includes a number of connection openings in a connection area, the number corresponding to the number of connecting conductors to be connected. The clamp covering part can act against the clamping spring in an opening manner in pivoting in the direction of the housing interior.

Abstract: The disclosure relates to an electrical service switching device, e.g., a circuit breaker, having a magnetic release with a magnet armature, a thermal release, a fixed and moving contact piece, a switching mechanism which can be tripped by the thermal and magnetic release and has a latching point which is formed by a tripping lever and a catch lever which is mounted in a fixed position such that it can rotate and has an elongated hole in order to guide a clip, wherein the magnet armature can act on the contact lever, to which the moving contact piece is fitted, in order to open the contact point in the event of a short, and the switching mechanism can hold the contact lever permanently in the open position, having a switching toggle for manual operation of the switching mechanism, and having an intermediate lever which is articulated at one of its ends with the contact lever and at its other end on the clip, wherein the clip is articulated with at least one limb on the switching toggle.

Abstract: An installation switching device having an insulating material housing with a front face and an attachment face connected by two broad faces and an input and an output narrow face; an input terminal; an output terminal, wherein a current path runs from the input terminal to the output terminal; a switching mechanism configured to open or close a main contact point so as to switch the current path off and on, respectively, the switching mechanism having a switching handle configured to operate the switching mechanism; and at least one phase connecting rail disposed in an interior of the housing close to and parallel to the attachment face and electrically and mechanically isolated from other components and assemblies in the housing.

Abstract: A locking apparatus for prevention of unauthorized switching-on of a service switching device includes a release lever disposed within a device housing, a switching mechanism movable from a latched state to an unlatched state by the release lever, and a release lever actuating part disposed in an area of the device housing in which the release lever is disposed. The release lever actuating part is movable from outside the switching device between a switched-on position and a switched-off position. The release lever actuating part is coupled to the release lever so as to hold the release lever in the unlatched state when the release lever actuating party is in the switched-off position.

Abstract: An installation switching device includes a housing, a main contact point having an arc quenching chamber, an input terminal, an output terminal, an impact-style armature system configured to move the main contact point to an open position, a latching mechanism having a latching point and configured to open an isolating contact point disposed in a secondary current path parallel to a main current path, a main thermostatic bimetallic strip configured to act on the latching point to as to cause the main contact point to remain in the open position, a current limiting resistor disposed in the secondary current path, a selective thermostatic bimetallic strip disposed in the secondary current path and configured to act on the latching mechanism, a handle configured to act on the latching mechanism so as to open and close the main contact point, and a phase connecting rail.

Abstract: An electrical switch with a main current path and an auxiliary current path comprises a first stationary contact piece, a first moveable contact piece, a contact lever, a second stationary contact piece, a second moveable contact piece, a contact carrier, a toggle switch, a first intermediate lever, a control lever, a second intermediate lever, a latching lever, a release lever configured to form a latching connection with the latching lever at a latching point, and a tripping spring.

Abstract: The disclosure relates to an electrical service switching device, e.g., a circuit breaker, having a magnetic release with a magnet armature, a thermal release, a fixed and moving contact piece, a switching mechanism which can be tripped by the thermal and magnetic release and has a latching point which is formed by a tripping lever and a catch lever which is mounted in a fixed position such that it can rotate and has an elongated hole in order to guide a clip, wherein the magnet armature can act on the contact lever, to which the moving contact piece is fitted, in order to open the contact point in the event of a short, and the switching mechanism can hold the contact lever permanently in the open position, having a switching toggle for manual operation of the switching mechanism, and having an intermediate lever which is articulated at one of its ends with the contact lever and at its other end on the clip, wherein the clip is articulated with at least one limb on the switching toggle.