X-ray facility with error protection circuit

The invention relates to a residual-current circuit breaker for an X-ray device. In one embodiment, the residual-current circuit breaker comprises at least one input, via which a detector identification signal of a detector identification element can be received, said signal characterizing the presence of an X-ray detector and at least one input, via which a selection signal for an exposure measurement element can be received, said signal characterizing the activation of an exposure measurement element. A deactivation signal can be issued via at least one output of the residual-current breaker, the deactivation signal being generated as long as a detector identification signal and a selection signal that is assigned to the same detector as the detector identification signal are not received at the same time.