Bussmann FRN-R-300 - Class RK5 Time-Delay Fuse 300A (250V, 20kA AIC)

The Bussmann FRN-R-300 is a Class RK5 time-delay fuse designed to provide reliable circuit protection for motor circuits and feeders against short-circuits and overload conditions. It features a 300A current rating and 250V voltage rating with an interrupting capacity of 20kA at 250V DC. The fuse measures 8-5/8 inches in length with a 2.38-inch diameter and utilizes a single-barrel construction. It complies with UL 248-12 standards under Guide JDDZ and carries CSA Certification Class 1422-01 along with CE marking. This industrial-grade fuse is commonly applied in motor control centers, industrial control panels, and power distribution systems requiring time-delay protection characteristics.

Key Features & Specifications

• Type: Class RK5 time-delay fuse, single-barrel construction
• Voltage Rating: 250V AC/DC
• Current Rating: 300A
• Dimensions: 8-5/8 in length x 2.38 in diameter
• Standards: UL 248-12 Guide JDDZ, CSA Certification Class 1422-01, CE
• Applications: Motor circuits, feeders, industrial control panels
• AIC rating: 20kA@250Vdc
• Class Rating: RK5
• Barrels: 1
• Weight: 1 lb
• Certification: CE, CSA Certification Class 1422-01, UL 248-12 Guide JDDZ

Product Identification

• UPC: 051712507516
• GTIN: 00051712507516