A window assembly (10) includes a transparent pane (18), an electrical conductor (20) contacting the transparent pane (18), an electrical connection element (22) for energizing the electrical conductor (20), an electrically conductive solder joint (28) disposed between the electrical connection element (22) and the electrical conductor (20) for providing an electrical connection between the electrical connection element (22) and the electrical conductor (20), an encapsulation (26) over the electrical connection element (22) and the electrical conductor (20), and a casing (30) disposed between the encapsulation (26) and the electrical conductor (20) to prevent contact between the encapsulation (26) and the solder joint (28).