Littelfuse 2009R1B5.5 is a medium voltage fuse designed for high-current circuit protection in industrial power systems. This R-rated fuse features a 5500V voltage rating and 200A current rating, with an 80kA interrupting capacity at 5.5kV for reliable fault protection. The single-barrel design measures 3 inches in diameter with bolt connections, constructed for durability in demanding environments. It complies with industry standards for medium voltage applications, including R-class specifications. Typical applications include transformer protection, motor circuits, and feeder protection in industrial power distribution systems.
Key Features & Specifications
Type: R-rated medium voltage current-limiting fuse
Voltage Rating: 5500V AC
Current Rating: 200A
Dimensions: 3" diameter
Standards: R-class rated
Applications: Industrial power systems, transformer protection