A vendor has initially proposed supplying pumps with a rating in KW. (50KW). In some initial correspondence he has been unable to confirm what is the HP rating of the proposed motor. Although we can easily convert KW to HP, it appears that 430 does not explicitly address sizing of conductors/OL/OCPD for KW rated motors. Would the correct application be to convert 50KW to HP (37.5) and then use the next size up (40 HP) in table 430.250? 430.6.(A)(1) allows you to apply the tables using nameplate amps if not marked in HP. I just haven't had to do that before.
Assuming the pump assembly includes applicable listings/labeling etc.
Assuming the pump assembly includes applicable listings/labeling etc.