APPARATUS FOR AN ELECTROMAGNETIC SWITCHING DEVICE

摘要

The invention relates to an apparatus (18) for driving a coil (17) of an electromagnetic switching device, the apparatus (18) comprising a first switch (19) to supply a pick-up 10 current to the coil (17), a second switch (21) to supply a hold-on current to the coil (17), and wherein the first switch (19) and the second switch (21) are controllable responsive to a current flowing through the coil (17).