An electrical installation for triggering switching functions in motor vehicles, with a central unit producing from input signals, coordinated output signals to switch load switches, and a redundancy unit; the input, respectively, output signals are thereby combined into groups of mutually similar switching functions and the redundancy unit is so connected that it prepares or readies for each group an output signal for the switching function which, in comparison with the other switching functions of the corresponding group, possesses the highest priority.