Fuse Reducer, Fuse Class H, K, Fuse Current 30 Amps, Voltage Rating 600 Volts, Holder Current 60 Amps, Rejection No, Allows Fuse to Fit Clips Fuse ReducersImprove circuit protection by allowing the use of lower ampere-rated fuses in existing switches and clips that have higher ampere ratings. For ferrule or knife-blade clips.UL Listed and CSA Certified.Rated 30 to 100A