The Littelfuse K1300G is a single-pole, thermally activated fuse designed for current-limiting over-current protection in DC and AC distributed power systems. It features an internal resistor that limits the amount of inrush current, which helps reduce stress on the circuit components and supplies. The K1300G is designed with a lag time of 5-10 minutes and a time-current characteristic curve of 20A in 6 minutes and 8A in 1 minute. It also offers a minimum operating temperature of -40°C and is nec Class H and Class K approved. It is available in a variety of amperage ratings, including 2A, 5A, 10A, 20A, 30A, 100A, and 250A.