Cable inlet device for a switchgear cabinet and arrangement and method for operating same

A cable inlet device (2, 2′, 2″) for a switchgear cabinet (1), comprising:

• a rigid frame part (23, 23′, 23″), which, in order to be fastened in or the switchgear cabinet (1), has a fastening device,
• wherein the frame part (23, 23′, 23″) has an assembly face with an assembly seal (238) for sealing with respect to a switchgear cabinet wall (13) provided for this purpose as an assembly wall, and
• wherein the frame part (23, 23′, 23″) has a side face opposite the assembly face, wherein the assembly face and the side face are connected to one another via a front face (233),
• wherein the front face (233) runs level, in order, in an assembled state on a switchgear cabinet opening (10) of the switchgear cabinet (1), to terminate in a planar manner with a free edge of the assembly wall (13),
• wherein the frame part (23, 23′, 23″) has at least one U-shaped seal recess (236) starting on the front face (233) and extending into the frame part (23, 23′, 23″),
• wherein the cable inlet device (2, 2′, 2″) furthermore has at least one elastic sealing insert (22, 22′), insertable form fittingly and with frictional engagement into the corresponding seal recess (236) of the frame part (23, 23′, 23″) by its convex U shaped insert contour complementary to the seal recess,
• wherein the at least one sealing insert (22, 22′) has at least one continuous, cylindrical bushing opening (220) and an insertion slot (227) for inserting a cable into the cable bushing opening (220),
• wherein each sealing insert (22, 22′) furthermore has a level closing face (223), and
• wherein this closing face (223) of the at least one sealing insert (22, 22′), in an inserted state thereof, terminates flush with the front face (233) of the frame part (23, 23′, 23″).