Is connected between the battery and the 12 V consumer. Protects battery as well as consumer from harmful undervoltage (consumer off at 10.7 V) and the connected consumer from harmful overvoltage (off at 15.5 V).
MT USG 120: Functional principle as with the MT USG 40, but with much higher switching capacity. In addition, an interior control unit can be plugged in, with which the vehicle can be disconnected (battery main switch) at any time.
