Littelfuse 2009R1IB5.5 is a medium voltage R-rated fuse designed for high-voltage circuit protection in industrial applications. It features a 5500V voltage rating and 200A current rating with an 80kA interrupting capacity at 5.5kV for reliable fault protection. The fuse has a compact 3-inch diameter inverted bolt connection design with single-barrel construction and weighs 11 lb for robust performance. It meets industry standards for R-class fuses with its current-limiting characteristics. Typical applications include transformer protection, motor circuits, and medium-voltage switchgear in utility and industrial power systems.
Key Features & Specifications
Type: R-rated medium voltage current-limiting fuse
Voltage Rating: 5500V AC
Current Rating: 200A
Dimensions: 3-inch diameter
Standards: R-class rated
Applications: Transformer protection, motor circuits, switchgear