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Branch-circuit conductors supplying a single motor-compressor shall have an ampacity not less than the greater of:
  1. 125 percent of the motor-compressor rated-load current
  2. 125 percent of the branch-circuit selection current
For a wye-start, delta-run connected motor-compressor, the selection of branch-circuit conductors between the controller and the motor-compressor shall be permitted to be based on 72 percent of either the motor-compressor rated-load current or the branch-circuit selection current, whichever is greater.
Informational Note: The individual motor circuit conductors of wye-start, delta-run connected motor-compressors carry 58 percent of the rated load current. The multiplier of 72 percent is obtained by multiplying 58 percent by 1.25.

Related Code Sections

440.32 Equipment for General Use, Single Motor-Compressor
Branch-circuit conductors supplying a single motor-compressor shall have an ampacity not less than 125 percent of either the motor-compressor rated ...
440.32 Equipment for General Use, Single Motor-Compressor
Branch-circuit conductors supplying a single motor-compressor shall have an ampacity not less than the greater of: 125 percent of the motor ...