A rotating electrical machine is equipped with a stator including a stator winding and a stator core with slots. The stator winding includes phase coils each of which is wound in the slots and connected at an end to a phase terminal and at the other end to a neutral point. The phase coils are each made up of unit coils connected in series between a corresponding one of the phase terminals and the neutral point and connected together using connecting conductors. Each of the phase coils includes two or more reversing connecting conductors each of which orients a direction in which the connecting conductor extends from the (i+1)th unit coil to the (i+2)th unit coil to be opposite to that in which the connecting conductor extends from the ith unit coil to the (i+1)th unit coil. This coil layout ensures a desired degree of electrical insulation in the stator.