Abstract: Various embodiments of the teachings herein include a DC network comprising: an electrical conductor; a switching unit arranged at one end of the conductor to break the electrical connection via the conductor, the switching unit including a controllable power semiconductor connected in series in the current path of the conductor; wherein the conductor includes a first section and a second section starting from the switching unit with a connection point between the first section and the second section; a first overvoltage protection apparatus connected between the connecting point and a second pole of the DC network; and a second overvoltage protection apparatus connected between that end of the second section remote from the switching unit and the second pole. The overvoltage protection apparatuses each have a capacitor.

Abstract: In an embodiment a connecting element includes a base configured to be fixed to a housing, an electrical conductor and a retainer for guiding and fixing the electrical conductor, the retainer being connected to the base, wherein the electrical conductor is in direct contact with the retainer, wherein the retainer is shaped such that a first contact face of the electrical conductor is configured to contact a first functional part of an electrical component and a second contact face of the electrical conductor is configured to contact a second functional part of the electrical component, the first functional part and the second functional part being located spatially distant from each other in an interior space of the housing, and wherein the connecting element is configured to connect the first functional part and the second functional.

Abstract: An electrochemical measuring sensor having a solid electrolyte, a first electrode exposed to a gas to be measured and a second electrode exposed to a reference gas, with the electrodes preferably being arranged on opposite sides of the solid electrolyte. At least one of the electrodes (16, 20) is provided with a contouring (24) on its side (22) that is exposed to the gas to be measured or to the reference gas, with the contouring being a trench-shaped groove (26) embossed into the surface of the electrode such that the electrode is pressed into the adjacent solid electrolyte in the region of the groove. According to the method, the embossing is done while the electrode and the solid electrolyte are in the non-sintered state, and the sensor is subsequently sintered.