Bussmann FRN-R-400 - Class RK5 Fuse 400A@250V (20kA AIC Rating)

Bussmann FRN-R-400 is a Fusetron Class RK5 low-voltage current-limiting fuse designed for circuit protection in industrial electrical systems. It features a 400A current rating and 250V voltage rating with a 20kA interrupting capacity at 250V DC, housed in a durable 2.38-inch diameter barrel construction measuring 8-5/8 inches in length. The fuse meets CE, CSA Class 1422-01, and UL 248-12 (JDDZ) safety standards, making it suitable for motor branch circuits, transformer protection, and feeder applications requiring RK5 time-delay characteristics.

Key Features & Specifications

• Type: Fusetron time-delay current-limiting fuse (Class RK5)
• Voltage Rating: 250V AC/DC
• Current Rating: 400A
• Dimensions: 8-5/8 in length, 2.38 in diameter
• Standards: CE, CSA Class 1422-01, UL 248-12 (JDDZ)
• Applications: Motor circuits, transformers, feeders
• AIC rating: 20kA@250V DC
• Class Rating: RK5
• Barrels: 1
• Weight: 2 lb
• Country of Origin: Mexico

Product Identification

• UPC: 051712507530
• GTIN: 00051712507530