Current detection apparatus

A current detection apparatus for detecting currents flowing through a first phase busbar, a second phase busbar, and a third phase busbar of a three-phase motor, the current detection apparatus comprising:

• an α-axis magnetic detection element and a β-axis magnetic detection element provided around the first, second, and third phase busbars, wherein
• a slit extending in a width direction is formed on the second phase busbar;
• a detection axis of the β-axis magnetic detection element is arranged orthogonal to the width direction of the second phase busbar, on a β-axis element arrangement surface that is orthogonal to the second phase busbar and includes a detection center of the β-axis magnetic detection element;
• and
• the detection center of the β-axis magnetic detection element is arranged at a position that is in a center of the second phase busbar in the width direction and is offset from the slit along an extension direction of the second phase busbar when seen along the detection axis of the β-axis magnetic detection element.