Switching arrangement for ascertaining measurement data relating to a network voltage of an electrical device; wherein the switching arrangement comprises - a conversion transistor and a reference resistor, which are arranged in series between the network voltage and a reference potential, so that a measurement voltage, which is dependent upon the network voltage, is provided at a measuring point between the conversion transistor and the reference resistor when the conversion transistor is at least partially closed; and - a control unit with at least one measurement input (141, 142); wherein the at least one measurement input (141, 142) is coupled to the measuring point, so that measurement data relating to the measurement voltage can be captured by the control unit; wherein the control unit is configured - to determine a measurement time period for measuring measurement data relating to a peak of the network voltage on the basis of the measurement data; and - to actuate the conversion transistor as a function of the measurement time period, in order to capture measurement data relating to the peak of the network voltage via the at least one measurement input (141, 142) - wherein the switching arrangement comprises a measurement resistor and a measurement transistor, which are arranged in series between the measuring point and the reference potential; - a first side of the measurement resistor is coupled to the measuring point; - a second side of the measurement resistor is coupled to the measurement transistor; and - the control unit comprises a first measurement input, which is coupled to the first side of the measurement resistor, and a second measurement input, which is coupled to the second side of the measurement resistor. - a conversion transistor and a reference resistor, which are arranged in series between the network voltage and a reference potential, so that a measurement voltage, which is dependent upon the network voltage, is provided at a measuring point between the conversion transistor and the reference resistor when the conversion transistor is at least partially closed; and - a control unit with at least one measurement input (141, 142); wherein the at least one measurement input (141, 142) is coupled to the measuring point, so that measurement data relating to the measurement voltage can be captured by the control unit; wherein the control unit is configured - to determine a measurement time period for measuring measurement data relating to a peak of the network voltage on the basis of the measurement data; and - to actuate the conversion transistor as a function of the measurement time period, in order to capture measurement data relating to the peak of the network voltage via the at least one measurement input (141, 142) - to determine a measurement time period for measuring measurement data relating to a peak of the network voltage on the basis of the measurement data; and - to actuate the conversion transistor as a function of the measurement time period, in order to capture measurement data relating to the peak of the network voltage via the at least one measurement input (141, 142) - wherein the switching arrangement comprises a measurement resistor and a measurement transistor, which are arranged in series between the measuring point and the reference potential; - a first side of the measurement resistor is coupled to the measuring point; - a second side of the measurement resistor is coupled to the measurement transistor; and - the control unit comprises a first measurement input, which is coupled to the first side of the measurement resistor, and a second measurement input, which is coupled to the second side of the measurement resistor.