Littelfuse KLLU-700 is a medium-voltage current-limiting fuse designed for robust circuit protection in industrial power distribution systems. It features a 700V AC voltage rating and is classified as a Class L fuse, indicating its high interrupting capacity for safeguarding equipment against short circuits and overloads. The fuse is constructed as a single-barrel unit with a 4-inch diameter and a weight of 5.19 lb, providing a durable and space-efficient design. It is engineered to meet relevant industry standards for medium-voltage applications, ensuring reliable performance in demanding environments such as motor control centers, service entrance equipment, and industrial switchgear.