The Littelfuse LLSRK-300ID is a current-limiting, time-delay fuse from the Powr-Gard family designed to provide reliable overcurrent protection for low-voltage industrial power circuits. It features a 600V AC voltage rating and a 300A current rating, with a high interrupting capacity of 300,000 amperes at 600V AC. The fuse is constructed as a single-barrel, RK1 class device with a 2.59-inch diameter and utilizes clip-style connections for secure installation. It is engineered to meet stringent industry standards for circuit protection in demanding environments. Typical applications include the protection of motor circuits, feeders, and branch circuits where high fault current availability and time-delay characteristics are required.
Key Features & Specifications
Type: Current-limiting, time-delay (RK1 Class) fuse, single barrel
Voltage Rating: 600V AC
Current Rating: 300A
AIC Rating: 300kA @ 600V AC
Dimensions: 2.59" diameter
Connection: Clip
Weight: 15 lb
Standards: Designed for industrial power circuit protection standards
Applications: Protection of industrial motor circuits, feeders, and branch circuits