A breaking circuit comprising a power supply circuit, the power supply circuit comprising: a first connecting point connected to an input of the breaking circuit via a first switch of the breaking circuit and a second connecting point connected to an output of the breaking circuit via a second switch of the breaking circuit; a first switch and a second switch of the power supply circuit connected in series between the first connecting point and the second connecting point; a first rectifier and a second rectifier connected in series and in opposite direction to each other between the first connecting point and the second connecting point; $ a first capacitor having a first connecting point (CP1 C1) of the first capacitor connected to a connecting point between the first rectifier and the second rectifier and a second connecting point (CP2 C1) of the first capacitor connected to a connecting point between the first switch and the second switch of the power supply circuit, wherein the first connecting point (CP1 C1) of the first capacitor further is connected to a power consumer of the breaking circuit; a third connecting point connected between the input and the first switch of the breaking circuit and a fourth connecting point connected between the output and the second switch of the breaking circuit; a current limiter; a third rectifier and a fourth rectifier connected in series and in opposite direction to each other between the third connecting point and the fourth connecting point, wherein the first connecting point (CP1 C1) of the first capacitor is further connected, through the current limiter, to a connecting point between the third rectifier and the fourth rectifier; a second capacitor having a first connecting point (CP1 C2) of the second capacitor connected to a connecting point between the third rectifier and the fourth rectifier and a second connecting point (CP2 C2) of the second capacitor connected between the first switch and the second switch of the power supply circuit; wherein the power supply circuit is arranged to open the first switch of the power supply circuit so that a current running from the input to the output passes via the first rectifier and the first capacitor, thereby charging the first capacitor. a first connecting point connected to an input of the breaking circuit via a first switch of the breaking circuit and a second connecting point connected to an output of the breaking circuit via a second switch of the breaking circuit; a first switch and a second switch of the power supply circuit connected in series between the first connecting point and the second connecting point; a first rectifier and a second rectifier connected in series and in opposite direction to each other between the first connecting point and the second connecting point; $ a first capacitor having a first connecting point (CP1 C1) of the first capacitor connected to a connecting point between the first rectifier and the second rectifier and a second connecting point (CP2 C1) of the first capacitor connected to a connecting point between the first switch and the second switch of the power supply circuit, wherein the first connecting point (CP1 C1) of the first capacitor further is connected to a power consumer of the breaking circuit; a third connecting point connected between the input and the first switch of the breaking circuit and a fourth connecting point connected between the output and the second switch of the breaking circuit; a current limiter; a third rectifier and a fourth rectifier connected in series and in opposite direction to each other between the third connecting point and the fourth connecting point, wherein the first connecting point (CP1 C1) of the first capacitor is further connected, through the current limiter, to a connecting point between the third rectifier and the fourth rectifier; a second capacitor having a first connecting point (CP1 C2) of the second capacitor connected to a connecting point between the third rectifier and the fourth rectifier and a second connecting point (CP2 C2) of the second capacitor connected between the first switch and the second switch of the power supply circuit; wherein the power supply circuit is arranged to open the first switch of the power supply circuit so that a current running from the input to the output passes via the first rectifier and the first capacitor, thereby charging the first capacitor.