Abstract: One embodiment of the present invention relates to a coupling arrangement for transmission of the rotational movement of a switching shaft of an electrical switch to at least one position signalling device including a mount and including at least one coupling, which is mounted on the mount so that it can rotate, via which the switching shaft is mechanically operatively connected to a device for operation of the at least one position signalling device, when the electrical switch is in the test position or in the operating position.

Abstract: A transport housing for receiving an electronic flat assembly, the electronic assembly having at least one controllable electronic component in the form of a DIP switch and a connecting line, has two housing halves receiving the flat assembly, wherein the one housing half is inserted at least partially into the other housing half, and wherein the two housing halves have a plurality of molded elements that are disposed in a staggered arrangement, for creating a molded lock having two detent positions successively disposed in the locking direction.

Abstract: One embodiment of the present invention relates to a coupling arrangement for transmission of the rotational movement of a switching shaft of an electrical switch to at least one position signalling device including a mount and including at least one coupling, which is mounted on the mount so that it can rotate, via which the switching shaft is mechanically operatively connected to a device for operation of the at least one position signalling device, when the electrical switch is in the test position or in the operating position.

Abstract: A locking device for an electric switch is disclosed which is movably guided in a withdrawable rack via an actuating shaft wherein the electric switch is placed in a preferred position, in particular in a disconnected position. In at least one embodiment, the locking device is movable from a release position in which the switch is displaceable in the withdrawable rack to a locking position in which the locking device blocks the switch displacement in a predetermined direction and the actuating shaft is actuated via an actuating crank. In order to safe the switch locking in the preferred position thereof, the locking device is movable to the locking position when the actuating crank actuation is blocked, only. The withdrawable rack, provided with the inventive locking device for the electric switch displaceable in the withdrawable rack via the actuating shaft, is also disclosed.

Abstract: A transport housing for receiving an electronic flat assembly, the electronic assembly having at least one controllable electronic component in the form of a DIP switch and a connecting line, has two housing halves receiving the flat assembly, wherein the one housing half is inserted at least partially into the other housing half, and wherein the two housing halves have a plurality of molded elements that are disposed in a staggered arrangement, for creating a molded lock having two detent positions successively disposed in the locking direction.

Abstract: A locking device for an electric switch is disclosed which is movably guided in a withdrawable rack via an actuating shaft wherein the electric switch is placed in a preferred position, in particular in a disconnected position. In at least one embodiment, the locking device is movable from a release position in which the switch is displaceable in the withdrawable rack to a locking position in which the locking device blocks the switch displacement in a predetermined direction and the actuating shaft is actuated via an actuating crank. In order to safe the switch locking in the preferred position thereof, the locking device is movable to the locking position when the actuating crank actuation is blocked, only. The withdrawable rack, provided with the inventive locking device for the electric switch displaceable in the withdrawable rack via the actuating shaft, is also disclosed.

Abstract: Mechanical signals which are made available in the form of limited travel distances can be fed, for obtaining at least one output variable, to an arrangement in which plungers assigned to the input variable are arranged in space parallel to each other, wherein a slide movably guided likewise parallel to the plungers is provided for the transmsision of force between the plungers. For obtaining a logical AND interconnection, at least one plunger for a first input signal can be guided at the slide and at least one plunger can be arranged approximately opposite the former for the output signal and the slide an have a working surface for at least one corresponding plunger for action by a further input signal. Arrangements of this kind can be used in conjunction with wire tripping devices in electrical switching installations for interlocking purposes.

Abstract: A circuit breaker comprises base angles to which sliding rails are connected. To the sliding rails are fastened coupling claws which have recesses for extending over coupling pins of a positioning drive. By posts of the coupling claws provision is made in conjunction with locking pieces attached to the rolling floor that the circuit breaker can be detached from the positioning drive only in its disconnected position.

Abstract: An electric switchboard cell includes a positioning drive with a threaded spindle for a movably arranged switchgear and a door. At the bottom of the switchboard cell, a latch lever is pivoted which has a cam with which a guiding member of the positioning drive cooperates. The latch lever is pivoted by means of the cam, when the disconnect position of the switchgear is reached, into a position in which its locking projection is disengaged from a lock bracket attached to the door. The lock bracket is attached pivotally to a pillow block mounted to the door and can be disengaged from the locking projection by authorized personnel for defeating the locking device, e.g., for servicing.

Abstract: A pull-out frame for a switching device with a threaded spindle and a tripping device which can be actuated by a tool provided for actuating the threaded spindle. In the switching device, a coupling member is arranged which transmits the motion of the tripping device of the pull-out frame to a tripping device of the switching meachanism of the switching device. A latching device controlled by the positioning drive makes provision that the tripping device is released only in the course of the travel motion of the switching device for resetting.

Abstract: A low-voltage circuit breaker comprises a current transformer which at least partly encloses a first connecting bar and is supported by a stationary carrier independently of a second connecting bar. In the region opposite this support, the current transformer is disposed between an L-shaped carrier (angled-off), of the contact arrangements of the circuit breaker and an insulating piece inserted between the connecting bars. In this arrangement, the current transformer can be exchanged with a relatively small amount of labor, while at the same time, adequate strength of the connecting bars against forces is achieved which are introduced into the connecting bars by the continuing current bars.