A stator unit for driving a rotor of an electrical planar drive system comprises first and second stator sectors. The first stator sector comprises conductor strips extended in an elongate manner along a first direction, and arranged next to one another along a second direction perpendicular to the first direction. The second stator sector comprises conductor strips extended in an elongate manner along the first direction, and arranged next to one another along the second direction. The first stator sector is arranged adjacent the second stator sector in the first direction. A contact structure comprises a first and a second contact unit groups conductively connected to the conductor strips of the first and second stator sectors. The contact structure is arranged on inner edges of the first stator and second stator sectors, with the inner edges are arranged to bear against one another between the first and second stator sector.