$($id:$123898)$

What is the maximum standard size overcurrent protective device permitted to protect the following THW conductors when they are not part of a branch circuit supplying more than one receptacle and are terminated to equipment rated $75C?$

$6$ AWG THW

$2/0$ AWG THW

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$4/0$ AWG THW $$

$350$ kcmil THW $$

$600$ kcmil THW $$