Circuit arrangement and method for disconnecting an electrical power source of a vehicle

The present invention relates to a circuit arrangement for switching off an electric power source of a vehicle, in which two switching elements are provided, which are mounted in the vicinity of the source of electrical energy in the two lines, are supplied via the consumers of the vehicle from the electric power source with electrical energy, wherein an all-pole disconnection by means of the two switching elements in case of failure realized by open in the event of a fault both switching elements, wherein one of the two switching elements illustrating the operation switch by means of which the electrical energy source during normal operation can be switched off. Furthermore, the invention relates to a method for disconnecting an electrical power source with this circuit arrangement, wherein, the shutdown takes place at a electric motor-powered vehicle in normal operation by the drive current of the electric motor is first regulated down, and by the operation switch is opened when the drive current is regulated down.