Mersen A550X350E-1 - Medium Voltage Fuse 350A (5500V, 63kA AIC)

Mersen A550X350E-1 is a medium voltage current-limiting fuse designed for protecting electrical equipment in industrial power distribution systems. It features a 5500V AC voltage rating and 350A current rating, providing reliable overcurrent protection in demanding applications. The fuse construction includes a single-barrel design with ferrule connections, measuring 3 inches in diameter and requiring 12-inch clip center spacing for proper installation. This CS-3 series fuse meets industry standards for medium voltage protection with its Class E rating and demonstrates a 63kA interrupting capacity at 5.5kV. Typical applications include motor circuits, transformers, and feeder protection in industrial facilities where robust short-circuit protection is essential.

Key Features & Specifications

• Type: Medium voltage current-limiting fuse, single barrel, ferrule connection
• Voltage Rating: 5500V AC
• Current Rating: 350A
• Dimensions: 3" diameter, 12" clip center spacing
• Standards: Class E rated
• Applications: Industrial power distribution, motor protection, transformer circuits
• AIC rating: [email protected]
• Family: CS-3 Series
• Type: A055
• Weight: 22 lb
• Connection: Ferrule
• Barrels: 1
• Class Rating: E