IEC Constant torque connection - 6 leads Low-speed horsepower is half of high-speed horsepower.
SPEED L1 L2 L3   TYPICAL CONNECTION HIGH 2W 2U 2V 1U,1V,1W JOIN 2 WYE LOW 1U 1V 1W 2U-2V-2W OPEN 1 DELTA
IEC NOMENCLATURE - THREE PHASE - CONSTANT TORQUE