Electric power inverter for an electrical machine of an electrically powered drive system, - wherein the electric power inverter incorporates a capacitor board having a plurality of capacitors, and at least one semiconductor board having a plurality of power semiconductors, - wherein the capacitor board and the at least one semiconductor board are mutually stacked in a stacking direction, with a clearance, in a stack formation, and are electrically interconnected, - wherein the capacitors on the capacitor board are arranged in the stacking direction, and are fitted to a side thereof facing the at least one semiconductor board, - wherein the capacitors are arranged on the capacitor board to form at least one open location space between the capacitors on the capacitor board, each location space positioned to accommodate a respective one of the at least one semiconductor board, - wherein the at least one semiconductor board is arranged within the respective location space, with a clearance to the capacitor board, - wherein the power semiconductors on the at least one semiconductor board constitute a power circuit with at least one phase terminal, characterized in that - the at least one phase terminal, by means of a respective phase terminal stud, extends to the capacitor board in the stacking direction and is brought out to the exterior through the stack formation, - the respective phase terminal stud penetrates the stack formation through one phase terminal opening respectively, - the respective phase terminal stud incorporates, perpendicularly to the stacking direction, a limit stop which is integrally formed on the phase terminal stud and is arranged between the capacitor board and the at least one semiconductor board, and - the limit stop is positioned on the capacitor board, with a clearance to the at least one semiconductor board, in an area which incorporates the respective phase terminal opening, so that the respective phase terminal stud is pressed to the at least one semiconductor board when pressing the stack formation for assembly. - wherein the electric power inverter incorporates a capacitor board having a plurality of capacitors, and at least one semiconductor board having a plurality of power semiconductors, - wherein the capacitor board and the at least one semiconductor board are mutually stacked in a stacking direction, with a clearance, in a stack formation, and are electrically interconnected, - wherein the capacitors on the capacitor board are arranged in the stacking direction, and are fitted to a side thereof facing the at least one semiconductor board, - wherein the capacitors are arranged on the capacitor board to form at least one open location space between the capacitors on the capacitor board, each location space positioned to accommodate a respective one of the at least one semiconductor board, - wherein the at least one semiconductor board is arranged within the respective location space, with a clearance to the capacitor board, - wherein the power semiconductors on the at least one semiconductor board constitute a power circuit with at least one phase terminal, characterized in that - the at least one phase terminal, by means of a respective phase terminal stud, extends to the capacitor board in the stacking direction and is brought out to the exterior through the stack formation, - the respective phase terminal stud penetrates the stack formation through one phase terminal opening respectively, - the respective phase terminal stud incorporates, perpendicularly to the stacking direction, a limit stop which is integrally formed on the phase terminal stud and is arranged between the capacitor board and the at least one semiconductor board, and - the limit stop is positioned on the capacitor board, with a clearance to the at least one semiconductor board, in an area which incorporates the respective phase terminal opening, so that the respective phase terminal stud is pressed to the at least one semiconductor board when pressing the stack formation for assembly.