A Roebel bar (60-64, 70, 71) for use in an electric machine comprising a stator core with slots for inserting the Roebel bar (60-64, 70, 71), the Roebel bar (60-64, 70, 71) has three pairs (80, 81, 82) of strands insulated from each other, whereas the strands are transposed with each other such that at least one of the strands of the pairs (80, 81, 82) of strands are transposed with each other and such that at least one of the pairs (80, 81, 82) of strands is transposed with another pair (80, 81, 82) of strands, whereas in a slot part of the Roebel bar (60-64, 70, 71) the three pairs (80, 81, 82) of strands have a combined transposition of 540° and in a yoke part of the Roebel bar (60-64, 70, 71) outside of the slots the strands have no transposition, characterized in that a) consecutively an upper strand of the first pair of strands is transposed to the lower strand of the third pair of strands, the upper strand of the second pair of strands is transposed to the lower strand of the second pair of strands, and the lower strand of the first pair of strands is transposed to the upper strand of the third pair of strands, or b) consecutively the upper strand of the first pair of strands is transposed to the lower strand of the first pair of strands, the upper strand of the second pair of strands is transposed to the lower strand of the second pair of strands, and the upper strand of the third pair of strands is transposed to the lower strand of the third pair of strands and the upper strand of the first pair of strands is transposed to the lower strand of the third pair of strands, the upper strand of the second pair of strands is transposed to the lower strand of the second pair of strands, and the upper strand of the third pair of strands is transposed to the lower strand of the first pair of strands, or c) consecutively - an upper strand of the first pair of strands is transposed to the lower strand of the third pair of strands, the upper strand of the second pair of strands is transposed to the lower strand of the second pair of strands, and the lower strand of the first pair of strands is transposed to the upper strand of the third pair of strands and then - the upper strand of the first pair of strands is transposed to the lower strand of the second pair of strands, the lower strand of the first pair of strands is transposed to the upper strand of the third pair of strands, and the upper strand of the second pair of strands is transposed to the lower strand of the third pair of strands. a) consecutively an upper strand of the first pair of strands is transposed to the lower strand of the third pair of strands, the upper strand of the second pair of strands is transposed to the lower strand of the second pair of strands, and the lower strand of the first pair of strands is transposed to the upper strand of the third pair of strands, or b) consecutively the upper strand of the first pair of strands is transposed to the lower strand of the first pair of strands, the upper strand of the second pair of strands is transposed to the lower strand of the second pair of strands, and the upper strand of the third pair of strands is transposed to the lower strand of the third pair of strands and the upper strand of the first pair of strands is transposed to the lower strand of the third pair of strands, the upper strand of the second pair of strands is transposed to the lower strand of the second pair of strands, and the upper strand of the third pair of strands is transposed to the lower strand of the first pair of strands, or c) consecutively - an upper strand of the first pair of strands is transposed to the lower strand of the third pair of strands, the upper strand of the second pair of strands is transposed to the lower strand of the second pair of strands, and the lower strand of the first pair of strands is transposed to the upper strand of the third pair of strands and then - the upper strand of the first pair of strands is transposed to the lower strand of the second pair of strands, the lower strand of the first pair of strands is transposed to the upper strand of the third pair of strands, and the upper strand of the second pair of strands is transposed to the lower strand of the third pair of strands. - an upper strand of the first pair of strands is transposed to the lower strand of the third pair of strands, the upper strand of the second pair of strands is transposed to the lower strand of the second pair of strands, and the lower strand of the first pair of strands is transposed to the upper strand of the third pair of strands and then - the upper strand of the first pair of strands is transposed to the lower strand of the second pair of strands, the lower strand of the first pair of strands is transposed to the upper strand of the third pair of strands, and the upper strand of the second pair of strands is transposed to the lower strand of the third pair of strands.