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.
UL 248-3 BULLETINS-2004 history
2019UL 248-3 BULLETIN-2019 UL Standard for Safety Low-Voltage Fuses – Part 3: Class CA and CB Fuses (COMMENTS DUE: March 4@ 2019)