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

Bussmann FRN-R-500 is a low-voltage time-delay fuse designed for circuit protection in industrial power distribution systems. It features a 500A current rating and 250V voltage rating with a 20kA interrupting capacity at 250V DC for reliable fault protection. The fuse measures 3 inches in length with a 0.81-inch square body profile and 2.88-inch diameter, constructed as a single-barrel RK5 class fuse with time-delay characteristics. It meets industry standards for current-limiting protection and is UL recognized for industrial applications. Typical uses include motor branch circuits, feeders, and mains where time-delay characteristics prevent nuisance openings during motor starting currents.

Key Features & Specifications

• Type: Low Voltage Time-Delay Fuse, RK5 Class, Single Barrel
• Voltage Rating: 250V AC/DC
• Current Rating: 500A
• Dimensions: 3" Length × 0.81" Height × 0.81" Width
• Diameter: 2.88 inches
• Weight: 2 lb
• Standards: UL Recognized, RK5 Classification
• Applications: Motor Circuits, Feeders, Industrial Power Distribution
• AIC Rating: 20kA @ 250V DC
• Class Rating: RK5
• Barrels: 1
• Family: Fusetron

Product Identification

• UPC: 051712507554
• GTIN: 00051712507554