The Littelfuse 313/315 Series Slo-Blo[®] fuse is a time-lag fuse designed for broad application requirements. It offers reliable performance and cost-effective circuit protection for appliances and utilization equipment. A unique design allows for instant identification through discoloration of the glass body, eliminating guesswork and circuit testing. This fuse provides the same quality performance characteristics as standard 3AG Slo-Blo[®] fuses and is lead-free. It's suitable for various applications requiring supplementary protection for components or internal circuits.