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ATV61HD....N4D: Is a line reactor required if the DC choke is not used?

Yes.  If the DC choke is not used, a 5% line reactor must be installed on the line side of the VFD.
This applies to ATV61/71 sizes:
125 HP 460V and above
75 HP 230V  and above

CTA-ID : 2061899
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