Littelfuse 0313007.VXP POWR-GARD Cartridge Fuse. Brand: Littelfuse. Part Number: 313007P. Littelfuse POWR-GARD Slo-Blo Cartridge Fuse, Time Delay, Series: 313, Non-Indicating, 7 A, 250 VAC, 10 kA Interrupt, 4 hr, 1 hr, 5 to 30 s Response, Axial Lead Terminal, Holder Mounting, Cartridge Body, Glass, 1/4 in Dia x 1-1/4 in L Body. Additional Description: LTFS-313007P 0313007.VXP SLO-BLO CERAMIC AXIAL 7A GLASS FUSE 7 AMP SIZE (5 PACK). Catalog Description: SLO-BLO CERAMIC AXIAL 7A. The 3AG Slo-Blo® fuse solves a broad range of application requirements while offering reliable performance and costeffective circuit protection. Features: 313 and 315 series fuses have time-delayed in the overload range, which provides superior protection inductive loads such as motors, transformers, and solenoids. 3AG indicating fuses instantly identify themselves upon opening by showing a discoloration of their glass bodies. Guesswork and time-consuming circuit testing is eliminated. This unique design offers the same quality performance characteristics as the standard 3AG fuse design..