A flexible shunt for a vacuum circuit breaker having a vacuum interrupter, a movable shaft, a heat sink, a clamp to connect the heat sink to the movable shaft, and a terminal (32, 40) connected to an electric power source side or an electric load side of an electric circuit, the flexible shunt comprising: a pair of conductive plates (38a, 38b), wherein each of the conductive plates (38a, 38b) comprises: a clamp connecting portion (38a1, 38b1) configured by a flat conductive member, the clamp connecting portion (38a1, 38b1) being connectable to the clamp of the vacuum circuit breaker; a terminal side connecting portion (38a3, 38b3) configured by a flat conductive member, the terminal side connecting portion (38a3, 38b3) being connectable to the terminal side of the vacuum circuit breaker; and a flexible curved portion (38a2, 38b2) configured to connect the clamp connecting portion (38a1, 38b1) to the terminal side connecting portion (38a3, 38b3), the flexible curved portion (38a2, 38b2) is projected outwardly, and wherein each of the conductive plates (38a, 38b) of the pair of conductive plates (38a, 38b) is symmetrical to each other, and characterised by the flexible shunt further comprising a shunt fixing block interposed between the terminal side connecting portion (38a3, 38b3) and the terminal to fix the terminal side connecting portion (38a3, 38b3) to the terminal, the shunt fixing block being made of a conductive material. a pair of conductive plates (38a, 38b), wherein each of the conductive plates (38a, 38b) comprises: a clamp connecting portion (38a1, 38b1) configured by a flat conductive member, the clamp connecting portion (38a1, 38b1) being connectable to the clamp of the vacuum circuit breaker; a terminal side connecting portion (38a3, 38b3) configured by a flat conductive member, the terminal side connecting portion (38a3, 38b3) being connectable to the terminal side of the vacuum circuit breaker; and a flexible curved portion (38a2, 38b2) configured to connect the clamp connecting portion (38a1, 38b1) to the terminal side connecting portion (38a3, 38b3), the flexible curved portion (38a2, 38b2) is projected outwardly, and wherein each of the conductive plates (38a, 38b) of the pair of conductive plates (38a, 38b) is symmetrical to each other, and characterised by the flexible shunt further comprising a shunt fixing block interposed between the terminal side connecting portion (38a3, 38b3) and the terminal to fix the terminal side connecting portion (38a3, 38b3) to the terminal, the shunt fixing block being made of a conductive material. a clamp connecting portion (38a1, 38b1) configured by a flat conductive member, the clamp connecting portion (38a1, 38b1) being connectable to the clamp of the vacuum circuit breaker; a terminal side connecting portion (38a3, 38b3) configured by a flat conductive member, the terminal side connecting portion (38a3, 38b3) being connectable to the terminal side of the vacuum circuit breaker; and a flexible curved portion (38a2, 38b2) configured to connect the clamp connecting portion (38a1, 38b1) to the terminal side connecting portion (38a3, 38b3), the flexible curved portion (38a2, 38b2) is projected outwardly, and wherein each of the conductive plates (38a, 38b) of the pair of conductive plates (38a, 38b) is symmetrical to each other, and characterised by the flexible shunt further comprising a shunt fixing block interposed between the terminal side connecting portion (38a3, 38b3) and the terminal to fix the terminal side connecting portion (38a3, 38b3) to the terminal, the shunt fixing block being made of a conductive material.