How do NEMA and IEC motors define the direction of rotation for electric motors?

NEMA and IEC motors use different terminologies for discussing the direction of rotation for electric motors; NEMA uses the terms clockwise and counter-clockwise, and IEC uses the terms clockwise and anti-clockwise.The standard direction of rotation for both NEMA and IEC manufactured motors is the same, but they also designate it differently.NEMA motors define the standard direction of rotation as counter-clockwise from the front, or non-shaft end of the motor.IEC motors define the standard direction of rotation as clockwise from the shaft end of the motor.For NEMA manufactured motors, when the odd numbered terminal of the auxiliary start winding connected to the even numbered terminal of the main run winding, the rotor will turn in the standard direction of rotation.For IEC manufactured motors, when the even numbered terminal of the auxiliary start winding is connected to the even numbered terminal of the main run winding, the motor will turn in the standard direction of rotation.