A termination unit for a deposition system, the termination unit comprising an electrical motor, the electrical motor comprising at least one component comprising electrical steel, wherein the electrical motor comprises a stator, and a rotor, wherein the stator is comprising the at least one component comprising electrical steel and/or the rotor is comprising the at least one component comprising electrical steel, and wherein the motor is configured such that a current can be applied to the electrical motor resulting in a contributing magnetic field resulting in a torque force between the stator and the rotor such that the motor can rotate a target when mounted or a magnetic bar connected to the termination unit, and characterized in that the device comprises a current transfer means which is configured such that it crosses a circumference of the at least one component comprising electrical steel, and wherein the current transfer means is configured for transferring power to the target when it is mounted on the termination unit, and wherein the device comprises at least one electrically conductive shielding element which is configured such that - if a current would be applied to the current transfer means, an effect of the current on the at least one component comprising electrical steel, which is not contributing to the torque force of the electrical motor, is mitigated by a current through the shielding element resulting in a counteracting field in the shielding element. at least one component comprising electrical steel, wherein the electrical motor comprises a stator, and a rotor, wherein the stator is comprising the at least one component comprising electrical steel and/or the rotor is comprising the at least one component comprising electrical steel, and wherein the motor is configured such that a current can be applied to the electrical motor resulting in a contributing magnetic field resulting in a torque force between the stator and the rotor such that the motor can rotate a target when mounted or a magnetic bar connected to the termination unit, and characterized in that the device comprises a current transfer means which is configured such that it crosses a circumference of the at least one component comprising electrical steel, and wherein the current transfer means is configured for transferring power to the target when it is mounted on the termination unit, and wherein the device comprises at least one electrically conductive shielding element which is configured such that - if a current would be applied to the current transfer means, an effect of the current on the at least one component comprising electrical steel, which is not contributing to the torque force of the electrical motor, is mitigated by a current through the shielding element resulting in a counteracting field in the shielding element. - if a current would be applied to the current transfer means, an effect of the current on the at least one component comprising electrical steel, which is not contributing to the torque force of the electrical motor, is mitigated by a current through the shielding element resulting in a counteracting field in the shielding element.