Littelfuse CCMR-20 CCMR020, 20 Amp 600V Midget, Time Delay, Current Limiting Class CC Rejection Cartridge Fuses Dimension: .41"" Dia x 1.5"" L (10.3 x 38.1mm) Cylindrical Midget TIME DELAY 20A 600V This CCMR-20 could be used to substitute for BUSSMANN LP-CC-20 and Ferraz Shawmut/Mersen ATDR20