The Littelfuse 313/315 Series Slo-Blo[®] fuse is a time-lag fuse designed to meet a broad range of application requirements. It offers reliable performance and cost-effective circuit protection for appliances and utilization equipment. A unique indicating design instantly identifies itself upon opening through discoloration of the glass body, simplifying troubleshooting and saving time. This fuse maintains the same quality performance characteristics as the standard 3AG Slo-Blo[®] Fuse design, making it a dependable choice for various circuit protection needs.