1 Scope

1 1.2 These requirements cover fuseholders intended for use with Class R Fuses as described in NMX-J-009/248/12-2000-ANCE, CSA C22.2 No. 248.12, UL 248-12, Low-Voltage Fuses – Part 12: Class R Fuses.

Summary of Topics

This revision of ANSI/UL 4248-12 dated February 6, 2023 is being issued to update the title page to reflect the most recent designation as a Reaffirmed American National Standard (ANS). No technical changes have been made.

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 February 6, 2023 will not be jointly issued by UL, CSA, and ANCE as these revision pages only address UL ANSI approval dates.