Littelfuse LLSRK125 - Class RK1 Fuse 125A 600V (200kA AIC)

Littelfuse LLSRK125 is a Class RK1 low-voltage fuse designed for circuit protection in industrial power distribution systems. It features a 600V AC rating with a 125A current capacity and 200kA interrupting rating at 600V for reliable short-circuit protection. The fuse has a compact cylindrical design with a 3.09" diameter and 1.41 lb weight, constructed with time-delay characteristics for motor circuit applications. It complies with UL/CSA standards as a Class RK1 fuse, providing rejection of lower-interrupting capacity fuses. Typical applications include motor branch circuits, transformers, and feeder protection in commercial and industrial electrical systems.

Key Features & Specifications

• Type: Class RK1 time-delay fuse with rejection feature
• Voltage Rating: 600V AC
• Current Rating: 125A
• Dimensions: 3.09" diameter
• Standards: UL/CSA listed
• Applications: Motor circuits, transformers, feeders
• AIC rating: 200kA@600V
• Class Rating: RK1
• Barrels: 1
• Weight: 1.41 lb

Product Identification

• UPC: 07945835084
• GTIN: 00079458350845