TIGERLOOSE

240.6 Standard Ampere Ratings.
(A) Fuses and Fixed-Trip Circuit Breakers. The
standard ampere ratings for fuses and inverse time circuit
breakers shall be considered 15, 20, 25, 30, 35, 40, 45, 50,
60, 70, 80, 90, 100, 110, 125, 150, 175, 200, 225, 250,
300, 350, 400, 450, 500, 600, 700, 800, 1000, 1200, 1600,
2000, 2500, 3000, 4000, 5000, and 6000 amperes.
Additional standard ampere ratings for fuses shall be 1, 3,
6, 10, and 601. The use of fuses and inverse time circuit
breakers with nonstandard ampere ratings shall be
permitted.