This Part applies to Class CA and CB fuses rated 60 A or less and 600 V ac. DC ratings are optional.
This revision of ANSI/UL 248-3 dated April 11, 2019 is being issued to reaffirm approval as an American National Standard. No changes in requirements are involved.
As noted in the Commitment for Amendments statement located on the back side of the title page, UL, CSA, and ANCE are committed to updating this harmonized standard jointly. However, the revision pages dated April 11, 2019 will not be jointly issued by UL, CSA, and ANCE as these revision pages only address UL ANSI approval dates.
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