What do the suffixes F1, M2, M3, N4, S6, and Y mean in Altivar VFD's part numbers?

Issue :
What does the suffix's F1, M2, M3, N4, S6, and Y mean in Altivar VFD's?

Product Line :
Altivar Process Drive ATV630 ATV930, ATV12.

Environment :
All serial numbers

Cause:
Customer wanted to know what are the different between the M3 and N4 in the ATV630 drive.

Resolution :
They stand for the voltage rating of the drives.
Below lists the meaning of the suffixes that most commonly found in Altivar Process Drive .
The voltage range is typical, but may vary depending on the actual part number.   Consult the Installation manual for details.
All drives are intended for use with 3 phase motors.

F1 = 120V (+10%, -15%) Single Phase Input
M2 = 230V (208-240V) Single Phase Input
M3 = 230V  (208-240V) 3 Phase Input
N4 = 460V  (400-480V) 3 Phase Input
S6 = 575V (500-600V) 3 Phase Input
Y = 690V  (575-690V) 3 Phase Input

NOTE :
Some older obsolete drives may not follow this convention.  Consult the manuals for the specific products for detail.

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