Here is a breakdown of the code:

ATV61: This indicates that it belongs to the Altivar 61 series.

HD: It may represent a specific design or feature variant, but the details are not provided in the code.

30: This typically refers to the power rating of the VFD. In this case, it could mean that the drive has a power rating of 30 kilowatts (kW).

N4: This could indicate the level of protection or environmental rating of the VFD. However, without further context or documentation, it's challenging to determine the exact meaning.

Z: The significance of this letter is not clear without additional information.

Schneider Inverter 

ATV71HD30N4

ATV71HD11N4 

ATV71HD37N4 

ATV320U15M2B

ATV340D11N4 

ATV340U40N4E

ATV340D22N4 

ATV320U04N4C

ATV320U06N4C

ATV320U07N4C

ATV320U11N4C

ATV320U15N4C

ATV320U22N4C

ATV320U30N4C

ATV320U40N4C

ATV320U55N4C

ATV320U75N4C

ATV320D11N4C

ATV320D15N4C