The Lot of 6 Bussmann FNM-1 4/10 Dual Element Fuse is a set of electrical fuses designed for AC current type applications. These green-colored fuses have a D-Type Cartridge style with a Time-Delay/Slow-Blow (T) speed, making them suitable for interior use. Made from Fiberglass/Glass-Reinforced Plastic (GRP), these one-time only fuses are ideal for protecting electrical equipment and supplies in various industrial settings. Each pack includes 1 fuse, providing reliable and efficient protection for your electrical circuit.