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 ; wherein the at least one measurement input 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 - 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 ; wherein the at least one measurement input 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 - 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 - 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 . <EOS>