Description
45A 300V FAST T FUSE
The JLLN series fast-acting fuses are the most compact fuses available in ratings above 30 amperes — less than
one-third the size of comparable Class R fuses. The JLLN fuses are used for short-circuit protection of drives and surge-
sensitive components. When rated in accordance with the NEC, these fuses provide fast-acting overload and short-circuit
protection for non-inductive circuits and equipment. Main switches containing JLLN fuses can be used to provide compact
protection for meter stacks. It should be noted that molded case circuit breaker load centers and panelboards have
increased interrupting ratings when “series rated” with Littelfuse Class T fuses. JLLN fuses are available in non-plated
and silver plated terminations.
