Abstract:
A switching device include at least two switching poles. Each of the switching poles has one current path and one switching contact system for opening and closing the current path, wherein a movable contact arrangement of the switching contact system of the switching poles has an integral switching shaft segment, formed from insulating material, which bears a contact lever arrangement and in which the switching shaft segments of adjacent switching poles are connected by way of at least two connecting branches; so as to form the switching shaft. The connecting branches extending at a distance parallel to the axis of rotation and are formed from corresponding connecting elements. In at least one embodiment, all of the connection elements of the at least two connecting branches are formed by first sections of the integral switching shaft segments, which bear the contact lever arrangements.
Abstract:
An arresting device is disclosed for a drive train which, in order to close a movable contact of an electric switch, can be moved from an OFF position into an ON position. In at least one embodiment, the arresting device includes an arresting including a pivot axis which extends outside its pivoting point. When the drive train is in its OFF position, the arresting element pivots from a position of rest into an arresting the position owing to a force which acts on its pivoting point, in the closing direction of the drive train, and in its arresting position, the arresting element is operatively connected to the drive train and blocks the movement of the drive train into it ON position. In at least one embodiment, the arresting device is suitable for use on transportation device, in particular on ships, and there is provision that in its position of rest, the arresting element is under the force effect of a restoring spring, and does not pivot into its arresting position until a defined acceleration of the electric switch is acting in the closing direction of the drive train.
Abstract:
A hinge construction is for connecting two components. The hinge construction includes a first securing part which can be fixed on a first of the two components, a second securing part which can be fixed on the second component, and a hinge part. The hinge construction further includes a first coupling device for the rotatable coupling of the first securing part to the hinge part, and a second coupling device for the pivotable coupling of the hinge part to the second securing part. The second coupling device, in order to set a distance between the two components, includes two corresponding, curved coupling surfaces, which run parallel to the pivot axis and of which a first is provided on the hinge part and the second is provided on the second securing part.
Abstract:
A multi-pole low-voltage power switch designed with several switching chambers per pole and a common switching shaft which acts for the pole units is formed by the switching chambers. The switching shaft is made up of shaft sections which correspond to the pole units. While the central shaft section has central pins and levers, the peripheral shaft sections are fitted with levers and have central apertures in which the pins engage. Bolts which pass through the levers are used to couple the shaft sections together. The pole units rest on a support which is dimensioned to accommodate the maximum width of the pole units and to allow for possible variations in their dimensions. Side walls of the correct dimensions for a pull-out rack enclosed the supporting framework of the power switch on each side.
Abstract:
An arresting device is disclosed for a drive train which, in order to close a movable contact of an electric switch, can be moved from an OFF position into an ON position. In at least one embodiment, the arresting device includes an arresting including a pivot axis which extends outside its pivoting point. When the drive train is in its OFF position, the arresting element pivots from a position of rest into an arresting the position owing to a force which acts on its pivoting point, in the closing direction of the drive train, and in its arresting position, the arresting element is operatively connected to the drive train and blocks the movement of the drive train into it ON position. In at least one embodiment, the arresting device is suitable for use on transportation device, in particular on ships, and there is provision that in its position of rest, the arresting element is under the force effect of a restoring spring, and does not pivot into its arresting position until a defined acceleration of the electric switch is acting in the closing direction of the drive train.
Abstract:
A latching mechanism is for locking a spring energy store of an electric switching device. The store is tensioned by a rotary drive and an extensible lever system. In the latching mechanism, the extensible lever system is locked with the spring energy store under tension by way of a support element, an auxiliary lock and a primary lock, in addition to a stop that is allocated to the primary lock. The auxiliary lock can be pivoted by the extension of the lever system and the position of the primary lock during the pivoting of the auxiliary lock can be influenced by working surfaces that are allocated to one another. To configure the locking mechanism for pivoting the primary lock in a manner which obviates the use of a return spring that acts on said primary lock, the auxiliary lock and the primary lock respectively have at least two working surfaces. In a first pivoting phase of the auxiliary lock, the respective first surfaces of the two sets of working surfaces lie adjacent to one another and in a second pivoting phase of the auxiliary lock, the second working surfaces lie adjacent to one another, intermeshing in the manner of a toothed gear.
Abstract:
A low-voltage circuit breaker has a contact arrangement, a drive mechanism for actuating the contact arrangement , and an actuating shaft, which is used for transmitting a drive force from the drive mechanism to the contact arrangement. A bearing device for the actuating shaft has at least one bearing body, which is connected to a pole component accommodating the contact arrangement. Thus a unit is formed, which can be tested independently of the other components of the circuit breaker. In the case of multipole circuit breakers, a common actuating shaft is used for all contact arrangements and pole components, which is mounted approximately in the center of the main bearing body and near the ends of the auxiliary bearing bodies.
Abstract:
A low-voltage circuit breaker includes a retrofittable motor reset mechanism. Its output shaft can be coupled to a charging shaft, mounted in a bearing block, of the spring energy store of the low-voltage circuit breaker. Centering elements are provided on a flange of the bearing block of the charging shaft of the spring energy store so as to engage in mating elements on the gearbox output of the motor reset mechanism, in such a way that the motor reset mechanism can be pushed axially into these centering elements with little movement in the direction of the charging shaft. In order to lock the motor reset mechanism in the pivoting direction, a fixing element is provided at a point fitted at a specific distance from the centering elements. The motor reset mechanism is fixed axially in the centering elements of the flange of the bearing block of the charging shaft of the spring reset mechanism, and in the coupling of the charging shaft.
Abstract:
The arrangement for mutually locking the actuation of at least two power switches (A, B, C) has a position indicator (7) and an evaluation apparatus (10) for each power switch (A, B, C). A carrying plate (6) accommodating the position indicator (7) and the evaluation apparatus (10) is assigned to a side wall of the power switch (A, B, C). A shaft coupling (30) and a driver coupling (31) establish the connection with a switching shaft or a control shaft, respectively, of a device (32) that releases or locks the actuation of the power switch (A, B, C) when the carrying plate (6) is mounted on the power switch (A, B, C) or on a withdrawable rack (26).
Abstract:
An arrangement includes at least two separate switch pole housings and a joining facility for joining the switch pole housings. In at least one embodiment, each of the switch pole housings forms an insulating enclosure of a switching space for receiving a single switch pole of an electric switching device which has a lower wall, an upper wall, two side walls, a rear wall and a front wall and in which at least a first one of the two switch pole housings has on a first one of the side walls, facing the second one of the switch pole housings, at least one recess for receiving at least one joining device of the joining facility. In order to reliably join the switch pole housings to one another whilst maintaining a preferred installation direction extending transversely to the front walls of the switch pole housings, in at least one embodiment the at least one recess forms a first undercut with respect to the first one of the side walls and a first locating surface in parallel with the front wall, the at least one joining device being constructed as contour element in such a manner that it engages behind the first undercut and is braced against the first locating surface, and the contour element having a receiving opening, extending in parallel with the first one of the side walls, for receiving at least one fastening device of the joining facility.