Bussmann FRN-R-500 - Class RK5 Fuse 500A@250V (20kA AIC)

Bussmann FRN-R-500 is a Class RK5 low-voltage fuse designed for circuit protection in industrial electrical systems. It features a 500A current rating and 250V voltage rating with a 20kA interrupting capacity at 250V DC, housed in a compact 3" x 0.81" x 0.81" (76.2mm x 20.6mm x 20.6mm) ceramic body weighing 2 lb. This UL-recognized fuse meets RK5 classification standards for time-delay operation and is commonly used in motor branch circuits, transformers, and feeder protection applications.

Key Features & Specifications

• Type: Fusetron FRN-R time-delay fuse with ceramic body construction
• Voltage Rating: 250V AC/DC
• Current Rating: 500A
• Dimensions: 3" L x 0.81" W x 0.81" H (76.2mm x 20.6mm x 20.6mm)
• Standards: UL 248 Class RK5
• Applications: Motor circuits, transformers, feeder protection
• AIC rating: 20kA@250V DC
• Class Rating: RK5
• Barrels: 1
• Diameter: 2.88" (73.2mm)
• Weight: 2 lb (0.91kg)

Product Identification

• UPC: 051712507554
• GTIN: 00051712507554