Abstract: The invention relates to a housing (20) for electrically isolating and mechanically stabilizing a plug-in coil element (10), wherein the plug-in coil element (10) has a coil (13) having a winding body (30), a first coil end (15) and a second coil end (16), as well as a first connecting element (11) for electrically connecting to a connecting element along a plug-in direction (S), and a second connecting element (12) for electrically connecting along the plug-in direction (S), wherein the winding body (30) has a first winding body end (31) and a second winding body end (32), and the first coil end (15) is formed to be spaced from the first winding body end (31), and the second coil end (16) is formed to be spaced from the second winding body end (32), wherein the first connecting element (11) is connected to the first coil end (15), and the second connecting element (12) is connected to the second coil end (16), moreover having protruding from a housing opening (39) to the outside, a sheathing portion (21)