Abstract: The waterproof case includes a case body, which defines an inner space for accommodating an electrically functional component. The waterproof case includes at least one opening, and at least one plug, which is mounted in the opening to form a part of a wall of the inner space. The plug includes at least one terminal conduit forming a feedthrough for a terminal. The plug is arranged in the opening to form with the case body an external space, and the external space is filled with an electrically insulating material for sealing the waterproof case.

Abstract: The present disclosure relates to a waterproof case for an electrical apparatus, to a power supply unit, and to a corresponding method of assembling an electrical apparatus. The waterproof case comprises a case body which defines an inner space for accommodating an electrically functional component and which comprises at least one first opening, at least one first plug which is mounted in said first opening to form a first part of a wall of the inner space, wherein the first plug comprises at least one first terminal conduit forming a feedthrough for a first terminal. The first plug is arranged in said first opening to form with said case body a first external space, and said first external space is filled with an electrically insulating material for sealing said waterproof case.