Electronic circuit for redundant supply of an electric load, comprising a plurality of terminals including at least a first terminal, a second terminal and at least one third terminal (T3, T3'), wherein the first terminal is configured to be connected to a first energy source for primary supply of the electric load; the second terminal is configured to be connected to a second energy source for secondary supply of the electric load; the at least one third terminal (T3, T3') is configured to be connected to the electric load; the electronic circuit further comprises a plurality of electrical components interposed between the first terminal, the second terminal and the at least one third terminal (T3, T3'), the electrical components being configured to enable power flow from either the first terminal or the second terminal to the at least one third terminal (T3, T3') in dependence of an erroneous supply state for the electric load; wherein the electronic circuit further comprises means for detecting an erroneous supply state at the first terminal, the erroneous supply state at the first terminal preferably comprising that an electrical measurand, preferably voltage, at the first terminal violates a threshold condition, wherein the plurality of electrical components comprise a third electrical component, preferably third electrical switch, configured to enable power flow from the second terminal to the at least one third terminal (T3, T3') if the erroneous supply state at the first terminal is detected; and to disable power flow from the second terminal to the first terminal and/or the at least one third terminal (T3, T3') if the erroneous supply state at the first terminal is not detected; wherein the third electrical component is further configured to enable power flow from the first terminal to the second terminal if the erroneous supply state at the first terminal is not detected. the first terminal is configured to be connected to a first energy source for primary supply of the electric load; the second terminal is configured to be connected to a second energy source for secondary supply of the electric load; the at least one third terminal (T3, T3') is configured to be connected to the electric load; the electronic circuit further comprises a plurality of electrical components interposed between the first terminal, the second terminal and the at least one third terminal (T3, T3'), the electrical components being configured to enable power flow from either the first terminal or the second terminal to the at least one third terminal (T3, T3') in dependence of an erroneous supply state for the electric load; wherein the electronic circuit further comprises means for detecting an erroneous supply state at the first terminal, the erroneous supply state at the first terminal preferably comprising that an electrical measurand, preferably voltage, at the first terminal violates a threshold condition, wherein the plurality of electrical components comprise a third electrical component, preferably third electrical switch, configured to enable power flow from the second terminal to the at least one third terminal (T3, T3') if the erroneous supply state at the first terminal is detected; and to disable power flow from the second terminal to the first terminal and/or the at least one third terminal (T3, T3') if the erroneous supply state at the first terminal is not detected; wherein the third electrical component is further configured to enable power flow from the first terminal to the second terminal if the erroneous supply state at the first terminal is not detected.