Littelfuse 39018R2B5.5 - R-Rated Medium Voltage Fuse 5500V/390A (80kA AIC)

Littelfuse 39018R2B5.5 is a medium voltage R-rated fuse designed for high-current circuit protection in industrial power systems. This bolt-in fuse features a 5500V voltage rating and 390A current rating, with a robust 2-barrel construction and 3-inch diameter for reliable performance. It meets R-class standards with an 80kA interrupting capacity at 5.5kV, ensuring protection against short circuits in demanding applications. The fuse is engineered for medium voltage switchgear, motor starters, and transformer protection in utility and industrial environments.

Key Features & Specifications

• Type: R-rated medium voltage current-limiting fuse
• Voltage Rating: 5500V AC
• Current Rating: 390A
• Dimensions: 3" diameter
• Standards: R-class rated
• Applications: Industrial power systems, switchgear, motor protection
• Connection: Bolt-in
• Barrels: 2
• AIC rating: [email protected]
• Weight: 20 lb

Product Identification

• UPC: 079458042672
• GTIN: 00079458042672