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The most current-limiting UL-Class fuse, Mersen’s Class J fuses provide optimal performance, prevent interchangeability with older code fuses, and save valuable panel space.
6SJ - Class J
A4J - Class J - Fast-Acting - 600V
AJT - Class J - Time-delay
AJT Reducer Fuses - Class J - Time-delay - 600V
Class J Fuse Holders - Gen2
Class J Fuseholders - Class J
HSJ - Class J - High-Speed
US3J - Class J
US6J - Class J