Electrically driven brake device and control apparatus thereof

The invention relates to an electrically driven brake device including a plurality of brake actuators (1a, 1b, 1c, 1d; 2a, 2b, 2c, 2d) for generating braking force when driven electrically, a power supply source (11) for storing electric energy and supplying power to the brake actuators, a power source line (31) for connecting the power supply source and the brake actuators, and a power breaker (20) at a position of the power source line at which the brake actuators can be insulated and separated into at least two systems.