Bussmann FRN-R-450 - Class RK5 Fuse 450A (250V, 200kA AIC)

The Bussmann FRN-R-450 is a Class RK5 time-delay fuse from the Fusetron family designed to provide reliable circuit protection for industrial power distribution systems. It features a 450A current rating and 250V voltage rating with an interrupting capacity of 200,000A at 250V DC, ensuring robust fault protection. The fuse measures 3 inches in length with a 0.81-inch square cross-section and weighs 2 lb, constructed with a single-barrel design for consistent performance. It complies with industry standards for RK5 fuses, making it suitable for motor branch circuits, feeder circuits, and other applications requiring time-delay characteristics to handle temporary overloads without nuisance opening.

Key Features & Specifications

• Type: Class RK5 time-delay fuse, single-barrel construction
• Voltage Rating: 250V AC/DC
• Current Rating: 450A
• Dimensions: 3" length × 0.81" height × 0.81" width
• Weight: 2 lb
• Diameter: 2.88 inches
• Standards: RK5 class rating
• Applications: Motor branch circuits, feeder circuits, industrial power distribution
• AIC rating: 200,000A @ 250V DC
• Barrels: 1
• Class Rating: RK5
• Mounting: Standard fuse block/clip

Product Identification

• UPC: 051712507547
• GTIN: 00051712507547