Electrical coupler for a first car of a multi-car vehicle

Electrical coupler comprising* a housing with an end opening,* an insulation block arranged in the end opening,* a lid that has a closed position,and* an arm attached to the lid and to the housing, whereby the attachment of the arm to the housing allows a rotation of the arm relative to the housing around a rotational axis, and optionally a series of arms connected to each other to allow one arm to rotate relative to a neighboring arm,wherebythe lid has a housing contact surface that contacts or is in close proximity to a lid contact surface of the housing,a reference line through the point of the lid contact surface furthest away from a base plane,a part of the housing contact surface crosses a reference plane closer to the base plane than the references line is as, the lid is moved from closed to open position.