Mersen A480R18R-1AB - Medium Voltage Current-Limiting Fuse 390A @ 4800V (50kA AIC Rating)

Mersen A480R18R-1AB is a medium voltage Amp-Trap current-limiting fuse designed for robust circuit protection in demanding industrial power systems. It features a 4800V AC voltage rating and a 390A current rating, providing reliable overcurrent protection for medium voltage applications. The fuse construction utilizes a two-barrel design with a 2-inch diameter and requires fuse clips with a 17.88-inch center-to-center spacing for proper installation. This R-class fuse complies with industry standards for medium voltage protection and carries a 50kA interrupting rating at 4.8kV. Typical applications include protection of transformers, motors, and feeders in industrial power distribution networks where high fault current interruption is critical.

Key Features & Specifications

• Type: Medium Voltage Amp-Trap Current-Limiting Fuse, R-Class, Two-Barrel Design
• Voltage Rating: 4800V AC
• Current Rating: 390A
• Dimensions: 2-inch Diameter, 17.88-inch Clip Center Spacing
• Standards: R-Class Medium Voltage Fuse Standards
• Applications: Industrial Power Systems, Transformer Protection, Motor Circuits, Feeder Protection
• AIC Rating: 50kA @ 4.8kV
• Weight: 21 lb
• Family: Amp-Trap
• Type: A480R
• Class Rating: R
• Barrels: 2
• Item Subcategory: Medium Voltage