Mersen A550X40E-1 - Medium Voltage Fuse 40A 5500V (Class E, 63kA AIC)

Mersen A550X40E-1 is a medium voltage current-limiting fuse designed for circuit protection in industrial power distribution systems. It features a 5500V AC voltage rating and 40A current rating, providing reliable overcurrent protection with a high interrupting capacity of 63kA at 5.5kV. The fuse construction utilizes a single-barrel design with ferrule connections, measuring 3 inches in diameter and requiring 12-inch clip center spacing while weighing 11 lb. This Class E rated fuse complies with industry standards for medium voltage applications, ensuring safe operation in demanding electrical environments. Typical applications include motor protection, transformer protection, and feeder circuit protection in industrial facilities and utility substations.

Key Features & Specifications

• Type: Medium voltage current-limiting fuse, single-barrel construction with ferrule connections
• Voltage Rating: 5500V AC
• Current Rating: 40A
• Dimensions: 3" diameter, 12" clip center spacing
• Standards: Class E rated
• Applications: Industrial power distribution, motor protection, transformer circuits
• AIC rating: [email protected]
• Connection: Ferrule
• Barrels: 1
• Class Rating: E
• Diameter: 3 inches
• Clip Center: 12 inches
• Weight: 11 lb
• Family: CS-3 Series
• Type: A055
• Item Subcategory: Medium Voltage