Electric motors are classified by its S1 nominal operating mode.(Constant load.EN 60034-1)
S2 for the T80 is about 13kW. S1 is 8kW
S2 for the T45 is about 8kW. S1 is 4kW
Induction motor can be temporarily overloaded. So S2 kW can only b e achieved for a short time.