Protect your electrical circuits with these reliable Class RK5 time delay fuses. Each pack contains 5 FRN-R-80 fuses rated at 250V/80A, designed for industrial and commercial applications where consistent performance is crucial. These time delay fuses help prevent nuisance tripping during temporary overloads while still providing essential circuit protection. The dual-element design responds quickly to short circuits while handling temporary current surges that occur during motor startups and other high-inrush scenarios. Perfect for protecting motors, transformers, and other equipment that experiences initial current surges. These 250V fuses are dimensionally precise and manufactured to meet rigorous performance standards. The pack of 5 ensures you have spares on hand for maintenance needs or emergency replacements.