Edison Dual Element Time Delay FuseEdison dual element time-delay class RK5 fuses are recommended for AC power distribution mains, feeders and branch circuits for motors and transformers, or lighting and heating. In ratings up to 600A, ECNR/ECSR series fuses are one of the most popular styles used for industrial applications and offer a minimum time-delay of 10 seconds at 5x fuse rating.Features:Sold IndividuallyAmp Rating: 150 Amp600V ApplicationDimensions: 9-5/8" Length x 1-13/16" DiameterClass RK5Applications: Recommended for AC power distribution system mains, feeders, and branch circuitsProtection of motors and motor branch circuitsProtection of transformers and other inductive loads All general-purpose applications including lighting, heating and other non-inductive loadsSupersedes / Replaces: FLSR0150 FLNR-150 FRNR150 FRN-R-150 ECSR150 ECSR-150 81149 82149 Cefco CRS-R150 LOS-R150 FRS-R150 FRSR150 HAS-R150 HASR150 Ferraz/Shawmut TRS150 TRS150R and others.