Littelfuse IDSR Littelfuse IDSR series Indicator fuses featuring POWR-PRO performance with a solid state design. These fuses combine a 600 Vdc capability with indication to provide an ideal solution for many DC applications. Other Names: IDSR.400, IDSR .4 Amp, IDSR-.4, IDSR-4/10, IDSR .4A, IDSR.4A, IDSR-0.4A, IDSR0.4A, IDSR 0.4A, IDSR 4/10, IDSR 4/10A, IDSR.400T Product specifications Ampere .4 A Voltage rating 600 VAC, 600 VDC Interrupt rating 20 kA at 600 VDC Speed Time Delay / Slow Blow Class Class RK5 Fuse Shape Cartridge Fuses Approvals CE, CSA, UL Substitute parts Datasheet Littelfuse IDSR Dimensions 0.811" Dia x 5" L (20.6x127mm) Item weight 3.2 oz Other names IDSR.400, IDSR .4 Amp, IDSR-.4, IDSR-4/10, IDSR .4A, IDSR.4A, IDSR-0.4A, IDSR0.4A, IDSR 0.4A, IDSR 4/10, IDSR 4/10A, IDSR.400T WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.