Littelfuse FLSR125 - RK5 Time-Delay Fuse 125A@600V (200kA AIC Rating)

Littelfuse FLSR125 is a UL Class RK5 dual-element time-delay fuse designed for overcurrent protection in low-voltage industrial circuits. Rated for 600V AC/DC systems with a 125A current capacity, it features a 200kA interrupting rating at 600V for high-fault protection. The fuse measures 9-5/8" in length with a 1.84" diameter barrel construction, weighing 1 lb for robust mechanical durability. It meets UL 248-12 Class RK5, CSA, CE, and QPL-W-F-1814 standards for reliable performance in demanding environments. Typical applications include motor branch circuits, transformers, and feeder protection in industrial power distribution systems.

Key Features & Specifications

• Type: Dual-element time-delay fuse with UL Class RK5 rating
• Voltage Rating: 600V AC/DC
• Current Rating: 125A
• Dimensions: 9-5/8" length x 1.84" diameter
• Standards: UL 248-12 Class RK5, CSA, CE, QPL-W-F-1814
• Applications: Motor circuits, transformers, industrial feeders
• Class Rating: RK5
• Barrels: 1
• AIC rating: 200kA@600V
• Weight: 1 lb
• Country of Origin: Mexico

Product Identification

• UPC: 07945817084
• GTIN: 00079458170849