Mersen A550X250E-1 - Medium Voltage Fuse 5500V 250A (63kA AIC)

Mersen A550X250E-1 is a medium voltage current-limiting fuse designed for high-voltage circuit protection in industrial power systems. This CS-3 series fuse features a 5500V AC rating with 250A continuous current capacity and 63kA interrupting capacity at 5.5kV, housed in a compact ferrule-connected design with 3" diameter and 12" clip center spacing. Constructed as a single-barrel Class E fuse with A055 type elements, it meets stringent industry standards for medium voltage applications. Typical uses include transformer protection, motor circuits, and feeder protection in utility and industrial power distribution systems.

Key Features & Specifications

• Type: Current-limiting medium voltage fuse (Class E, A055 element)
• Voltage Rating: 5500V AC
• Current Rating: 250A
• Dimensions: 3" diameter, 12" clip center
• Standards: Meets medium voltage fuse industry requirements
• Applications: Industrial power systems, transformer protection
• Connection: Ferrule
• Barrels: 1
• AIC rating: [email protected]
• Weight: 5 lb
• Family: CS-3 Series