An intermediate adapter for attaching a connector unit to an appliance, the intermediate adapter comprising: a base plate having an appliance portion which is connectable to the appliance and comprises at least two first contact elements (404, 504), and a connector portion which is connectable to the connector unit and has at least two second contact elements (406, 506), wherein the appliance portion and the connector portion are formed on opposing first and second surfaces of the base plate; wherein a rotation axis is perpendicular to a plane in the base plate extending along the first and second surfaces, at least two electrically conductive leads (402, 502) interconnecting said first and second contact elements, wherein said first contact elements (404, 504) form a first connection arrangement having a first orientation with respect to the rotation axis of the base plate and said second contact elements (406, 506) form a second connection arrangement having a second orientation with respect to the rotation axis, and the second connection arrangement is oriented at a non-zero angle with respect to the first connection arrangement so that the intermediate adapter enables changing a pin orientation of the connector unit when used to attach the connector unit to the appliance, characterized in that - the intermediate adapter and the connector unit are each individually and directly connectable to the appliance, - said first contact elements (404, 504) are formed as pads with a sliding ramp (410, 510) configured for guiding a first electrical contact of the appliance. a base plate having an appliance portion which is connectable to the appliance and comprises at least two first contact elements (404, 504), and a connector portion which is connectable to the connector unit and has at least two second contact elements (406, 506), wherein the appliance portion and the connector portion are formed on opposing first and second surfaces of the base plate; wherein a rotation axis is perpendicular to a plane in the base plate extending along the first and second surfaces, at least two electrically conductive leads (402, 502) interconnecting said first and second contact elements, wherein said first contact elements (404, 504) form a first connection arrangement having a first orientation with respect to the rotation axis of the base plate and said second contact elements (406, 506) form a second connection arrangement having a second orientation with respect to the rotation axis, and the second connection arrangement is oriented at a non-zero angle with respect to the first connection arrangement so that the intermediate adapter enables changing a pin orientation of the connector unit when used to attach the connector unit to the appliance, an appliance portion which is connectable to the appliance and comprises at least two first contact elements (404, 504), and a connector portion which is connectable to the connector unit and has at least two second contact elements (406, 506), wherein the appliance portion and the connector portion are formed on opposing first and second surfaces of the base plate; wherein a rotation axis is perpendicular to a plane in the base plate extending along the first and second surfaces, at least two electrically conductive leads (402, 502) interconnecting said first and second contact elements, wherein said first contact elements (404, 504) form a first connection arrangement having a first orientation with respect to the rotation axis of the base plate and said second contact elements (406, 506) form a second connection arrangement having a second orientation with respect to the rotation axis, and the second connection arrangement is oriented at a non-zero angle with respect to the first connection arrangement so that the intermediate adapter enables changing a pin orientation of the connector unit when used to attach the connector unit to the appliance, characterized in that - the intermediate adapter and the connector unit are each individually and directly connectable to the appliance, - said first contact elements (404, 504) are formed as pads with a sliding ramp (410, 510) configured for guiding a first electrical contact of the appliance. - the intermediate adapter and the connector unit are each individually and directly connectable to the appliance, - said first contact elements (404, 504) are formed as pads with a sliding ramp (410, 510) configured for guiding a first electrical contact of the appliance.