Changeover switching device, comprising a changeover switch, the changeover switch comprising a first input and a first output and a second output, the changeover switch is configured to couple the first input either to the first output in a first switching position or to the second output in a second switching position, characterized in that the switching device further comprises: a first and a second measuring element, wherein each of the measuring elements (4, 5) has a first measuring input (41, 51) and a second measuring input (42, 52) and a measuring output (43, 53), wherein the first measuring input of the first measuring element and the first measuring input of the second measuring element are coupled to the first input of the changeover switch, wherein the second measuring input of the first measuring element is coupled to the first output of the changeover switch, wherein the second measuring input of the second measuring element is coupled to the second output of the changeover switch, wherein the first measuring element and the second measuring element are configured to provide, according to a first and second electrical voltage, respectively, between the first measuring input (41, 51) and the second measuring input (42, 52), a third and fourth electrical voltage, respectively, at the measuring output (43, 53), the third and the fourth electrical voltage each having a voltage value which indicates whether the first and the second electrical voltage, respectively, is either below or above a threshold value, the switching device further comprising an evaluation element (61, 6) which is configured to evaluate the third and/or the fourth electrical voltage and which is further configured to provide an electronically evaluable information which indicates whether the first input has current flowing through it or not. the changeover switch is configured to couple the first input either to the first output in a first switching position or to the second output in a second switching position, characterized in that the switching device further comprises: a first and a second measuring element, wherein each of the measuring elements (4, 5) has a first measuring input (41, 51) and a second measuring input (42, 52) and a measuring output (43, 53), wherein the first measuring input of the first measuring element and the first measuring input of the second measuring element are coupled to the first input of the changeover switch, wherein the second measuring input of the first measuring element is coupled to the first output of the changeover switch, wherein the second measuring input of the second measuring element is coupled to the second output of the changeover switch, wherein the first measuring element and the second measuring element are configured to provide, according to a first and second electrical voltage, respectively, between the first measuring input (41, 51) and the second measuring input (42, 52), a third and fourth electrical voltage, respectively, at the measuring output (43, 53), the third and the fourth electrical voltage each having a voltage value which indicates whether the first and the second electrical voltage, respectively, is either below or above a threshold value, the switching device further comprising an evaluation element (61, 6) which is configured to evaluate the third and/or the fourth electrical voltage and which is further configured to provide an electronically evaluable information which indicates whether the first input has current flowing through it or not. a first and a second measuring element, wherein each of the measuring elements (4, 5) has a first measuring input (41, 51) and a second measuring input (42, 52) and a measuring output (43, 53), wherein the first measuring input of the first measuring element and the first measuring input of the second measuring element are coupled to the first input of the changeover switch, wherein the second measuring input of the first measuring element is coupled to the first output of the changeover switch, wherein the second measuring input of the second measuring element is coupled to the second output of the changeover switch, wherein the first measuring element and the second measuring element are configured to provide, according to a first and second electrical voltage, respectively, between the first measuring input (41, 51) and the second measuring input (42, 52), a third and fourth electrical voltage, respectively, at the measuring output (43, 53), the third and the fourth electrical voltage each having a voltage value which indicates whether the first and the second electrical voltage, respectively, is either below or above a threshold value, the switching device further comprising an evaluation element (61, 6) which is configured to evaluate the third and/or the fourth electrical voltage and which is further configured to provide an electronically evaluable information which indicates whether the first input has current flowing through it or not.