Converter arrangement comprising - a first phase module branch having a first series circuit containing two-pole submodules, which each comprise at least one energy store and at least two power semiconductor switches connected in series, wherein the first phase module branch extends between a first AC voltage connection and a first DC voltage pole, - a second phase module branch having a second series circuit containing the two-pole submodules, wherein the second phase module branch extends between the first AC voltage connection and a second DC voltage pole, - a third phase module branch having a third series circuit containing the two-pole submodules, wherein the third phase module branch extends between a second AC voltage connection and the first DC voltage pole, - a fourth phase module branch having a fourth series circuit containing the two-pole submodules, wherein the fourth phase module branch extends between the second AC voltage connection and the second DC voltage pole, wherein each submodule can be bypassed in a manner independent of current direction by means of a bypass unit arranged in parallel with the connection terminals (26, 27) of said submodule, and wherein the first DC voltage pole is connected to a first DC voltage connection and the second DC voltage pole is connected to a second DC voltage connection, wherein a DC voltage switch is arranged between the first DC voltage pole and the first DC voltage connection or between the second DC voltage pole and the second DC voltage connection, and - wherein a freewheeling path extends between the two DC voltage connections (5, 6) and comprises a semiconductor element having a reverse and a forward direction, wherein the DC voltage switch comprises at least one power semiconductor switching module having a power semiconductor switch, wherein the DC voltage switch comprises a surge arrester, which is arranged in parallel with the at least one power semiconductor switching module, wherein the converter arrangement is designed for a DC-voltage-side rated voltage of at least 320 kV and the DC voltage switch has a reverse voltage of at most 10 kV. - a first phase module branch having a first series circuit containing two-pole submodules, which each comprise at least one energy store and at least two power semiconductor switches connected in series, wherein the first phase module branch extends between a first AC voltage connection and a first DC voltage pole, - a second phase module branch having a second series circuit containing the two-pole submodules, wherein the second phase module branch extends between the first AC voltage connection and a second DC voltage pole, - a third phase module branch having a third series circuit containing the two-pole submodules, wherein the third phase module branch extends between a second AC voltage connection and the first DC voltage pole, - a fourth phase module branch having a fourth series circuit containing the two-pole submodules, wherein the fourth phase module branch extends between the second AC voltage connection and the second DC voltage pole, wherein each submodule can be bypassed in a manner independent of current direction by means of a bypass unit arranged in parallel with the connection terminals (26, 27) of said submodule, and wherein the first DC voltage pole is connected to a first DC voltage connection and the second DC voltage pole is connected to a second DC voltage connection, wherein a DC voltage switch is arranged between the first DC voltage pole and the first DC voltage connection or between the second DC voltage pole and the second DC voltage connection, and wherein each submodule can be bypassed in a manner independent of current direction by means of a bypass unit arranged in parallel with the connection terminals (26, 27) of said submodule, and wherein the first DC voltage pole is connected to a first DC voltage connection and the second DC voltage pole is connected to a second DC voltage connection, wherein a DC voltage switch is arranged between the first DC voltage pole and the first DC voltage connection or between the second DC voltage pole and the second DC voltage connection, and - wherein a freewheeling path extends between the two DC voltage connections (5, 6) and comprises a semiconductor element having a reverse and a forward direction, wherein the DC voltage switch comprises a surge arrester, which is arranged in parallel with the at least one power semiconductor switching module, wherein the converter arrangement is designed for a DC-voltage-side rated voltage of at least 320 kV and the DC voltage switch has a reverse voltage of at most 10 kV.