Abstract: A current-sensing resistor for measuring a current with two connection parts for introducing and discharging the current to be measured includes a resistor element made of a resistor material, a first voltage measurement contact at the first connection part for measuring the voltage at the first connection part, a second voltage measurement contact at the second connection part for voltage measurement at the second connection part, and a cut in the second connection part, the cut surrounding the second voltage measurement contact and preventing current flow across the cut. The resistor also includes a third voltage measurement contact arranged at the second connection part for measuring the voltage at the second connection part, and that the third voltage measurement contact is arranged at the second connection part offset with respect to the main current flow direction transversely to the second voltage measurement contact at the second connection part.

Abstract: The invention relates to a sensor (S), in particular for an electrical network of an electrically driven vehicle, in particular in an electric car. The sensor according to the invention comprises first of all a measuring device (ME) for current measurement and/or for voltage measurement in the electrical network, in particular with a low-resistance current sense resistor for current measurement according to the four-wire technique. Furthermore, the sensor (S) according to the invention comprises an integrated insulation monitoring device (ME, IQ, Rk, S3) for monitoring an electrical insulation of high-side and/or low-side of the electrical network. The sensor (S) according to the invention is characterized by the fact that the insulation monitoring device (ME, IQ, Rk, S3) operates actively and impresses measurement pulses into the electrical network for insulation monitoring.

Abstract: The invention relates to a current-sensing resistor for measuring an electric current (I), comprising two connection parts, a resistor element, a pair of voltage-sensing contacts for measuring a voltage drop across the resistor element, and at least one incision in at least one of the connection parts the incision surrounding one of the voltage-sensing contacts and preventing current flow across the incision. The invention provides for multiple pairs of voltage sensing contacts to be arranged in series in the direction of current flow.