Littelfuse KLKR008.T POWR-GARD Fast-Acting Fuse. Littelfuse POWR-GARD Fast Acting Fuse, Current Limiting High Speed North American Style, Series: KLKR, Non-Indicating, Rejection, 8 A, 600 VAC/300 VDC, 20/200 kA Interrupt, Class: CC, 12 s Response, Ferrule Terminal, Holder Mounting, Cartridge Body, Melamine, 0.41 in Dia x 1.5 in L Body. Additional Description: LTFS-KLKR008 KLKR008.T UL CLASS CC FAST-ACTING FUSE 8 AMP SIZE. Catalog Description: KLKR series Class CC fuses are fast-acting fuses intended for general-purpose branch circuit protection. Their compact size, fast-acting overload response, and their highly current limiting design make them ideal for use in OEM equipment and control panels because Solid-state devices such as SCRs and other electronic equipment generally require fast-acting protection..