Ferraz Shawmut A550X125E-1 - Medium Voltage Fuse 5500V 125A (63kA AIC)

Ferraz Shawmut A550X125E-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 and 125A current capacity, housed in a compact 3-inch diameter ferrule-connected design with a single-barrel construction. Its Class E-rated design meets stringent industry standards, offering 63kA interrupting capacity at 5.5kV for reliable short-circuit protection. The fuse's 12-inch clip center spacing and 5 lb weight ensure compatibility with standard medium-voltage switchgear. Typical applications include transformer protection, motor starters, and feeder circuits in utility and industrial power distribution systems.

Key Features & Specifications

• Type: Current-limiting medium-voltage fuse (Class E)
• Voltage Rating: 5500V AC
• Current Rating: 125A
• Dimensions: 3" diameter, 12" clip center
• Standards: IEEE/ANSI compliant
• Applications: Industrial power systems, transformer protection
• Connection: Ferrule
• Barrels: 1
• AIC rating: [email protected]
• Weight: 5 lb
• Family: CS-3 Series
• Subcategory: Medium Voltage Fuse