The Littelfuse 313/315 Series Slo-Blo[®] fuse is a time-lag fuse designed for a broad range of applications requiring reliable performance and cost-effective circuit protection. Featuring a unique indicating design, the fuse instantly identifies discoloration upon opening, eliminating guesswork and circuit testing time. It's suitable for use in appliances and utilization equipment, providing individual protection for components and internal circuits. The fuse is available with various ampere ratings and voltage options, and offers standard 248-14 lead-free construction and axial lead format.