Abstract: The invention relates to a terminal assembly (10, 10?, 10?) for establishing electrical connection between at least one low voltage side coil terminal of a transformer (100) and at least one associated external supply connector. The terminal assembly (10, 10?, 10?) comprises at least one conductive connection element (12) for connecting to the at least one low voltage side coil terminal of the transformer (100) and to the at least one associated external supply connector and an insulating support plate (14) being mountable to the transformer and for positioning of the at least one conductive connection element (12) with respect to the at least one associated external supply connector. The at least one conductive connection element (12) is movably attached to the insulating support plate (14) so as to be movable within an extension area of the insulating support plate (14) along at least one reference direction.