Abstract: The DAC (Digital-to-Analog Converter) function is designed in combination with the intelligent control of the contactor, so that the contactor system interacts and controls with the external ...

The contactor box (reffered to as the SBox) is usually found inside the battery packs of BMW Hybrid vehicles e.g. 530e Inside there are 2 contactors , one precharge relay , precharge resistor, 350A ...