This Part applies to Class G fuses rated 20 A or less, 600 V ac; 21 - 60 A, 480 V ac. DC ratings are optional.
These UL 248 proposals include increased use of International symbology, clarifications, editorial revisions, establishment of minimum samples in the Operation Test for Fuses, the addition of Canadian requirements for Class K fuses with Class H dimensions, miniature fuse requirements, withdrawal of body temperature requirements and the addition of 600 V ratings to Class T fuses.
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Sample