A control unit for an electric heating device, in particular for a motor vehicle, - having a first and at least one second housing part (3, 2, 4), each of which jointly bound a housing interior on the inside and which separate the housing interior, preferentially in a dust and liquid-tight manner, from an external environment of the control unit, - having a low-voltage and high-voltage interface (7, 8) each of which being arranged on the first housing part on the outside, - having control electronics which are received in the housing interior and which are electrically connected to the low-voltage interface by via an electrical low-voltage line and to the high-voltage interface by via an electrical high-voltage line, - wherein the low-voltage and/or the high-voltage line (10, 11) at their line end arranged in the housing interior comprises at least one first press fit element, which, electrically connecting the control electronics to the relevant interface (7, 8), forms a press fit with a second press fit element present on the control electronics, - wherein the high-voltage line comprises a high-voltage bus-bar, - wherein the high-voltage bus-bar in regions is embedded in a material of the first housing part, preferentially overmolded with the material of the first housing part, characterized in that - the high-voltage line, at least in a passage region, in which the high-voltage line passes through the first housing part from the outside to the inside, comprises a high-voltage cable; and that - the high-voltage cable is electrically connected to the high-voltage bus-bar in the housing interior in an integrally bonded manner, in particular soldered. - having a first and at least one second housing part (3, 2, 4), each of which jointly bound a housing interior on the inside and which separate the housing interior, preferentially in a dust and liquid-tight manner, from an external environment of the control unit, - having a low-voltage and high-voltage interface (7, 8) each of which being arranged on the first housing part on the outside, - having control electronics which are received in the housing interior and which are electrically connected to the low-voltage interface by via an electrical low-voltage line and to the high-voltage interface by via an electrical high-voltage line, - wherein the low-voltage and/or the high-voltage line (10, 11) at their line end arranged in the housing interior comprises at least one first press fit element, which, electrically connecting the control electronics to the relevant interface (7, 8), forms a press fit with a second press fit element present on the control electronics, - wherein the high-voltage line comprises a high-voltage bus-bar, - wherein the high-voltage bus-bar in regions is embedded in a material of the first housing part, preferentially overmolded with the material of the first housing part, characterized in that - the high-voltage line, at least in a passage region, in which the high-voltage line passes through the first housing part from the outside to the inside, comprises a high-voltage cable; and that - the high-voltage cable is electrically connected to the high-voltage bus-bar in the housing interior in an integrally bonded manner, in particular soldered.