Mersen TR-R Series Series Ferraz Shawmut is Mersen. Mersen TR-R Tri-Onic fuses are engineered for overcurrent protection of motors, transformers, service entrance equipment, feeders and branch-circuits. The time-delay characteristics of the TR-R safely handle harmless starting currents and inrush currents associated with today's motors and transformers. Other Names: TR8, TR 8 Amp, TR-8, TR 8A, TR8A, TR-8A, TR 8, TR 8R, TR-8R Product specifications Ampere 8 A Voltage rating 250 Vac, 160 Vdc Interrupt rating 200 kA Speed Time Delay Class Class RK5 Shape Cartridge Fuses Approvals UL, CSA, RoHS Substitute parts Bussmann FRN-R, Littelfuse FLNR Datasheet Mersen TR-R Datasheet Dimensions 0.56" Dia x 2" L (14.22x50.8mm) Item weight 0.8 oz Other names TR8, TR 8 Amp, TR-8, TR 8A, TR8A, TR-8A, TR 8, TR 8R, TR-8R WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.