The invention describes a T-shaped bus connector comprising a holding device for mechanically retaining the T-shaped bus connector on a mounting device on which the T-shaped bus connector is to be arranged, and further comprises a first and a second connecting unit for respectively producing an electrical connection to a complementary connecting unit of a device arranged adjacent to the bus connector, wherein the first and second connecting units face in substantially opposing directions and are constructed complementarily to one another, as well as a third connecting unit, oriented substantially perpendicular to the first and second connecting units, for producing an electrical connection to a connecting unit, complementary to the third connecting unit, of an electrical or electronic module, wherein data and/or power bus lines are run between all three connecting units, and all three connecting units are covered at least in part with a shielding material.