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Standard Size Calculator
for Fuses and Circuit Breakers
by electrician2.com
Section 240-6(a)
(Size up or down allowed
for 800 amperes or less.)
(Size down above 800 amperes)Notes: (1) Size down for conductors
that are part of a multioutlet
branch-circuit supplying
receptacles for cord and
plug connected portable loads.
(2) Additional fuse sizes
of 1, 3, 6, 10, and 601 amperes
are not included.
Fuses can be manufactured
to almost any size.