By using three different voltages in the three time phases, it is possible to achieve faster energizing of the previously non-energized inductive load during the first phase, more secure maintenance of the energizing during the second phase, and energy-saving maintenance of a reduced energization level. Particularly when the inductive load produces a magnetic field which moves a magnetic armature, the phases can be so matched in time that, for example, in the first phase the armature is attracted from a greater distance, in the second phase from a smaller distance, and in the third phase the already fully attracted armature is held in position with lower energy consumption.

A device for operating a plurality of switchable inductive loads connected between two terminals comprises a half-bridge for applying a predetermined voltage between the terminals; and a control device designed to control the half-bridge in such manner that it applies a predetermined voltage between the terminals. The loads can be connected in parallel with one another between the two terminals. In addition, the control device is designed to set the voltage between the terminals to a predetermined first value when a previously non-energized load is connected between the terminals, and after the lapse of a predetermined time interval, to reduce the voltage to a second value lower than the first value.

Basically, the device can be a known device which, for example, adjusts the voltage at the terminals on the basis of a temperature of one of the loads. By designing the control device in the manner described, the above-described method can be implemented and its advantages realized. The features of the method and the device can correspondingly be reciprocally combined with one another.