Abstract: The invention relates to a device for locking an adjusting means (5), in particular an electrical addressing device, mounted on a printed circuit board (1) which extends in an x and/or y direction. The device includes an essentially flat base plate (2) having a length (L), a width (B), and a thickness (D), to which a first detent spring (4) is attached for locking engagement with marking means (23, 23?) of the adjusting means (5). The first detent spring preferably has an oblong spring leg (7), wherein in the installed state the base plate (2) is mounted on the printed circuit board (1).

Abstract: The invention relates to a redundant control system comprising an automation network with a first control device and a second control device. For data exchange, the first and the second control devices are in each case connected to the automation network via a network interface. For direct communication between each other, the first and the second control devices are connected to each other via a point-to-point connecting device. Furthermore, the first and the second control devices are designed to establish an alternative communication between each other via the automation network if the direct communication via the point-to-point connecting device is not available. The invention further relates to a method for operating such a redundant control system.

Abstract: The invention relates to a method for parasitic current detection in a power supply system, which comprises at least one electrical unit, a power grid having power paths for supplying the unit, and a central electrical feed apparatus for feeding electrical power into the power grid, wherein the feed apparatus is connected to a first of the power paths, at which a reference potential is present, and is connected to at least a second of the power paths, at which a potential for generating an operating current through the unit is present, wherein the first power path is earthed by means of a defined first earthing branch of a connecting portion of the first power path, said connecting portion being connected directly to the feed apparatus and being otherwise unbranched. The invention further relates to an apparatus for carrying out the method.

Abstract: Disclosed is an electrical distribution device (10), e.g. a distribution piece, for connection to line and/or connecting devices (12) having shielding devices (18), wherein the distribution device (10) having a conductive housing (20) for forming a shielding, and at least one conductor track mount (26, 28), arranged in the housing (20), for connection of line and/or connecting devices (12).

Abstract: The invention relates to a measurement arrangement for connection to an energy and power meter and for connection to a Rogowski coil for detecting of alternating currents of a conductor being metered. The measurement arrangement has an integrator circuit to create a voltage signal proportional to the detected alternating current and a voltage/current converter to create an output current that is proportional to the voltage signal created by the integrator circuit. Furthermore, the invention relates to a measurement system that has an above-described measurement arrangement and a Rogowski coil for detecting of alternating currents of a conductor being metered.