steuergeru00e4teschutz for a zweispannungsbordnetz

摘要

The invention relates to a controller protective device for a dual-voltage electric system (1). Said protective device comprises two galvanically linked electric systems of different voltage in which electric consumers R1, R2 are located. According to the invention, a protective diode (3) is switched to the non-conducting direction in parallel to the electric consumers R1 in the electric system with the lower voltage.