Direct current shut -off means

The utility model discloses a direct current shut -off means, including parallel connection's on state current branch road and electric current switching -over with divide disconnected unit, the on state current branch road includes mechanical switch and the current transfer module of series connection, electric current switching -over and branch break the unit and include bridge type branch road and breaking current branch road, two bridge arm parallel connection of breaking current branch road and bridge type branch road, include parallel connection's non -linear resistor in the breaking current branch road and control device series connection valves entirely, it controls entirely that the device both ends are parallelly connected to be had the buffering and reclose the circuit to control in the device series connection valves every entirely, during breaking operation, snubber circuit can alleviate the voltage spike of full accuse device, before heavy closing operation, open earlier and reclose the circuit