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ANSI/CAN/UL
ANSI/CAN/UL/ULC
CAN/UL
ALL UL STDS for CANADA
This Part applies to Class R fuses rated 600 A or less and either 250 or 600 V ac. DC ratings are optional.
Revision pages have been issued for the Standard for Safety for Low-Voltage Fuses - Part 12: Class R Fuses, UL 248-12, to reflect the latest ANSI approval date, and to incorporate the following proposals:
• Paragraph 5.3 figure reference.
• Value of prospective short circuit current in Table A.
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