Bussmann FRN-R-125 - RK5 Time-Delay Fuse 125A (20kA AIC @125Vdc)

The Bussmann FRN-R-125 is a Fusetron time-delay fuse designed for reliable circuit protection in industrial applications, featuring a 125A current rating and 125V voltage rating. Its RK5 class rating provides high interrupting capacity up to 20kA at 125V DC, while the single-barrel construction measures 1.56 inches in diameter with an overall length of 7-1/8 inches. The fuse meets rigorous safety standards including UL 248-12 Guide JDDZ and CSA Certification Class 1422-01, ensuring compliance with industrial electrical requirements. Typical applications include motor branch circuits, transformers, and power distribution systems where time-delay characteristics prevent nuisance tripping during temporary overload conditions.

Key Features & Specifications

• Type: Fusetron time-delay fuse, single barrel construction
• Voltage Rating: 125V AC/DC
• Current Rating: 125A
• Dimensions: 7-1/8 inches length, 1.56 inches diameter
• Standards: UL 248-12 Guide JDDZ, CSA Certification Class 1422-01, CE
• Applications: Motor circuits, transformers, power distribution systems
• Class Rating: RK5
• AIC rating: 20kA@125Vdc
• Barrels: 1
• Weight: 1 lb

Product Identification

• UPC: 051712507455
• GTIN: 00051712507455