Bussmann FRN-R-4-1/2 - Time-Delay Fuse 4A 250V (200kA AIC RK5 Class)

Bussmann FRN-R-4-1/2 is a time-delay, current-limiting fuse designed for branch circuit protection in industrial and commercial electrical systems. Rated for 250V AC with a 4A current capacity, it features an RK5 class rating and 200kA interrupting capacity at rated voltage for reliable short-circuit protection. The fuse measures 2 inches in length with a 0.56-inch diameter barrel construction, manufactured with precision-engineered materials for consistent performance. It meets stringent safety standards including UL 248-12, CSA Class 1422-01, and CE certifications. Typical applications include motor control centers, HVAC systems, and industrial machinery requiring selective coordination.

Key Features & Specifications

• Type: Fusetron time-delay current-limiting fuse (FRN-R)
• Voltage Rating: 250V AC
• Current Rating: 4A
• Dimensions: 2" length x 0.56" diameter
• Standards: UL 248-12 Guide JDDZ, CSA Class 1422-01, CE
• Applications: Motor circuits, transformers, industrial controls
• Class Rating: RK5
• AIC rating: 200kA@250V
• Barrels: 1
• Weight: 1 lb

Product Identification

• UPC: 051712507219
• GTIN: 00051712507219