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Amp Man
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Table 430.247 through Table 430.250 lists the horsepower and

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Table 430.247 through Table 430.250 lists the horsepower and the full-load currents of motors. How could you determine the full-load current of a motor not listed, such as a 35 horsepower 460 volt motor? Need an answer and a NEC Reference!

Amp Man :

When using Tables 430.247 and 430.250 in the manner that you are outlining you should default to the next higher standard H.P. rating listed on the table.

Amp Man :

Article 430.6(A)(1) addresses this issue.

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