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This Part applies to Class K fuses rated 600 A or less and either 250 or 600 V ac. DC ratings are optional.

This Part applies to Class H Renewable fuses rated 600 A or less and either 250 or 600 V ac. DC ratings are optional.

This Part applies to Class H Non-Renewable fuses rated 600 A or less and either 250 or 600 V ac. DC ratings are optional.

This Part applies to Class G fuses rated 20 A or less and 600 V ac; 21 - 60 A, 480 V ac. DC ratings are optional.

This Part applies to Class CC fuses rated 30 A or less and 600 V ac. DC ratings are optional.

This Part applies to Class CA and CB fuses rated 60 A or less and 600 V ac. DC ratings are optional.

This Part applies to test limiters calibrated to specific limits of peak let-through current and clearing l²t at 250, 300, 480, or 600 V ac.

This Part applies to Class T fuses rated 1200 A or less and 300 V ac, 800 A or less and 600 V ac. DC ratings are optional.

This Part applies to supplemental fuses rated 60 A or less and intended only for supplementary overcurrent protection where branch circuit or equivalent applications are not involved. DC ratings are optional.

This Part applies to Class C fuses rated 1200 A or less and 600 V ac. DC ratings are optional.

Incorporate climate change adaptation provisions for A440S1, A440.2/.3, and A440.4.

Incorporate climate change adaptation provisions for A440S1, A440.2/.3, and A440.4.