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For ATV212, Why the contactor rating for a given KW is less rating in comparison to the motor current?

The contactors reference provided in chart is perfectly okay. The contactor rating is not less, because the VFD is AC-1 duty application and the same contactor has higher current capacity for AC-1 duty. 
For Example: LC1D09 is AC-3 Duty=9Amps & AC-1 Duty = 25Amps
LC1D18 is AC-3 duty = 18 Amps & AC-1 Duty= 32 Amps.

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