Sanitary wall installation connection box unit having an electric line feed-through

A sanitary wall installation connection box unit, comprising:

• a box housing body having a rear-side base portion and a sleeve portion projecting forward from the base portion, which sleeve portion peripherally surrounds a sanitary component mounting space, which sanitary component mounting space is accessible via an open front end face of the sleeve portion;
• and
• a connector body disposed on the base portion of the box housing body, which connector body comprises a sanitary component connection contour facing the sanitary component mounting space, a fluid line connection interface structure accessible on an outer side of the box housing body, a fluid conduit structure for fluid connection of the fluid line connection interface structure to the sanitary component connection contour, and at least one electric line feed-through opening leading from an outer side of the connector body through the connector body to the sanitary component mounting space;
• wherein:
• the base portion of the box housing body is made of a sealing resilient material at least in an electric line connection region adjacent to the electric line feed-through opening of the connector body, and
• the electric line feed-through opening of the connector body is covered on an outer side by a closure membrane made of the sealing resilient material of the electric line feed-through region of the base portion;
• wherein the connector body has an annular or cylindrical shape and the electric line feed-through opening extends peripherally through the connector body in a radial direction or with a radial main direction component;
• the fluid line connection interface structure comprises a plurality of fluid line connection interfaces disposed on a peripheral side on the connector body, and the fluid conduit structure comprises a plurality of associated fluid conduits between the respective fluid line connection interface and the sanitary component connection contour;
• the electric line feed-through opening is disposed peripherally between two of the fluid conduits, or the connector body includes a plurality of electric line feed-through openings, with at least one of said openings being disposed between two of the fluid conduits;
• and
• wherein the base portion of the box housing body in the electric line connection region has an outside, blind hole-shaped tube insertion port opening in the sealing resilient material, wherein the tube insertion port opening in a longitudinal direction overlaps with the electric line feed-through opening of the connector body, and wherein the closure membrane forms a bottom region of the tube insertion port opening.