Electric heater

摘要

The invention relates to an electric heater comprising at least two groups of heating elements which change their temperature by electrical power consumption, comprising a control unit with two switch arrangements such that the first switch arrangement includes at least two power switches for switching the at least two groups of heating elements in a High-side connection and such that the second power switch arrangement includes at least two switches for switching the at least two groups of heating elements in a Low-side connection.