Contact device and electric motor

The invention relates to a contact device (10) for electrically contacting a first component (1) and a second component (2), in particular surrounded by a temperature control medium. The contact device comprises a thermally conductive contact element (a) for heat transfer between the first component (1) and the second component (2); a housing (e) for at least partially accommodating the contact element (a) between the first component (1) and the second component (2), in particular between the first component (1) and at least one (referred to as electrical) line (L1, L2) leading to the second component (2); and a connecting element (b) having a fastening element (c) for fastening at least one line (L1, L2) guided to the second component (2) to the housing (e) and for electrically contacting the at least one line (L1, L2) with the thermally conductive contact element (a), the housing (e) being designed such that the at least one line (L1, L2) is electrically connected to the first component (1) by means of the