Cutler Hammer A550X400E-1 - Medium Voltage Current-Limiting Fuse 400A (63kA AIC @ 5.5kV)

Cutler Hammer A550X400E-1 is a medium voltage current-limiting fuse designed for protecting electrical equipment in industrial power systems. It features a 5500V AC voltage rating and a 400A current rating, providing reliable overcurrent and short-circuit protection. The fuse is constructed as a single-barrel unit with ferrule connections, measuring 3 inches in diameter and requiring a 12-inch clip center for installation. This CS-3 series fuse complies with industry standards for Class E fuses and delivers an interrupting rating of 63kA at 5.5kV. Typical applications include motor circuits, transformers, and feeder protection in medium voltage distribution systems.

Key Features & Specifications

• Type: Medium Voltage Current-Limiting Fuse, Single Barrel, Ferrule Connection
• Voltage Rating: 5500V AC
• Current Rating: 400A
• Dimensions: 3" Diameter
• Standards: Class E Rating
• Applications: Industrial Power Systems, Motor Circuits, Transformer Protection
• AIC Rating: [email protected]
• Connection: Ferrule
• Barrels: 1
• Clip Center: 12 inches
• Weight: 22 lb
• Family: CS-3 Series
• Type Designation: A055