Electrical switch, comprising - a switch base for receiving electrical connection contacts, electrical switching elements and also for receiving mechanical switching elements which operate the electrical switching elements and transmit a switching movement, wherein these mechanical switching elements are mounted on the switch base, and - a rocker switch or pushbutton which can be connected to the mechanical switching elements, wherein the mechanical switching elements have, on their side which faces the rocker switch or the pushbutton, attachments which are designed as hollow profiles, and wherein the rocker switch or the pushbutton has, on its side which faces the mechanical switching elements, profile projections in a complementary manner, which profile projections engage in a longitudinally displaceably force-fitting manner into the hollow profile attachments and in an interlocking manner in its circumferential direction in the mounted state of the switch, and which are designed in a U-shaped manner in respect of the basic shape in plan view, wherein at least one limb (S1, S2) of the U has a groove on the outer side, which groove is delimited on either side by groove outer walls (13a, 13b) which form functional areas (13c, 13d), which run above a height of the profile projections in the longitudinal direction of the groove, for respectively bearing against the complementary hollow profile attachments, characterized in that the functional areas (13c, 13d) of the groove outer walls (13a, 13b) are arranged with a vertical offset (ΔH) and/or an angular offset (Δμ) in relation to one another. - a switch base for receiving electrical connection contacts, electrical switching elements and also for receiving mechanical switching elements which operate the electrical switching elements and transmit a switching movement, wherein these mechanical switching elements are mounted on the switch base, and - a rocker switch or pushbutton which can be connected to the mechanical switching elements, wherein the mechanical switching elements have, on their side which faces the rocker switch or the pushbutton, attachments which are designed as hollow profiles, and wherein the rocker switch or the pushbutton has, on its side which faces the mechanical switching elements, profile projections in a complementary manner, which profile projections engage in a longitudinally displaceably force-fitting manner into the hollow profile attachments and in an interlocking manner in its circumferential direction in the mounted state of the switch, and which are designed in a U-shaped manner in respect of the basic shape in plan view, wherein at least one limb (S1, S2) of the U has a groove on the outer side, which groove is delimited on either side by groove outer walls (13a, 13b) which form functional areas (13c, 13d), which run above a height of the profile projections in the longitudinal direction of the groove, for respectively bearing against the complementary hollow profile attachments, - a rocker switch or pushbutton which can be connected to the mechanical switching elements, wherein the mechanical switching elements have, on their side which faces the rocker switch or the pushbutton, attachments which are designed as hollow profiles, and wherein the rocker switch or the pushbutton has, on its side which faces the mechanical switching elements, profile projections in a complementary manner, which profile projections engage in a longitudinally displaceably force-fitting manner into the hollow profile attachments and in an interlocking manner in its circumferential direction in the mounted state of the switch, and which are designed in a U-shaped manner in respect of the basic shape in plan view, wherein at least one limb (S1, S2) of the U has a groove on the outer side, which groove is delimited on either side by groove outer walls (13a, 13b) which form functional areas (13c, 13d), which run above a height of the profile projections in the longitudinal direction of the groove, for respectively bearing against the complementary hollow profile attachments,