Abstract: A utility vehicle trailer having a vehicle electrical distribution system. The vehicle electrical distribution system includes a control unit having a first voltage transformer device. The electrical energy for operating at least one consumer connected to the control unit in a first operating state of the control unit is provided via an energy supply connection, via which the vehicle electrical distribution system is connected, at least in the first operating state, to an electrical energy source of an electronic braking system of the utility vehicle trailer. Electrical energy for operating the at least consumer in a second operating state of the control unit is provided by an electrical energy store of the utility vehicle trailer. The first voltage transformer device is configured to decouple a first ground potential connected to the energy supply connection from a second ground potential connected to the electrical energy store of the utility vehicle trailer.