The Lot of 2 Edison Bussmann ECNR30 Class RK5 Fuses are dual-element time-delay fuses designed for industrial use. Made of metal and with a blue color, these fuses are compatible with the Edison Bussmann brand and are manufactured in Mexico. With a height, length, and width of 7 inches each, these fuses are reliable and durable components for electrical protection in various industrial settings.