Overview
The Ferraz Shawmut A480T2E is a current-limiting medium voltage fuse designed for primary winding protection of potential transformers in utility and industrial power systems. Rated 4800V AC at 2A with a 50kA interrupting rating, this fuse combines high reliability with compact ferrule-type construction. Supplied as a box of two, the A480T2E delivers Class E protection per ANSI C37 standards.
Key Features
- Current-limiting design with 50kA interrupt rating at 4800V
- Time-delay characteristic for reliable operation in transformer protection circuits
- Ferrule-type (barrel) construction for standard clip mounting
- Compact, space-saving design ideal for high-voltage switchgear
- Class E rating per ANSI C37 specifications
- Non-indicating, non-rejection body style
Technical Specifications
- Rated Voltage: 4800V AC
- Rated Current: 2A
- Interrupting Rating: 50kA @ 4800V
- Body Style: Ferrule (cylindrical)
- Fuse Class: E (Medium Voltage PT)
- Time Characteristic: Time Delay
- Length: 5 5/8 inches
- Mounting: Standard clips
- Quantity per Package: 2
- Certification: ANSI C37.41, NETA
Typical Applications
- Potential transformer primary circuit protection in substations
- Utility distribution voltage circuit protection
- Industrial high-voltage switchgear and control systems
- Electrical metering and protection circuits requiring Class E fuses
- Power systems operating at 4800V nominal voltage
Compatibility & Replacements
Compatible With
- Standard potential transformer primary circuits rated 4800V
- High-voltage switchgear requiring Class E fuses
- Electrical systems utilizing ferrule-type fuse clips and holders
- ANSI C37-compliant protection schemes
Replaces / Drop-In Replacement For
- Mersen A480T2E (same manufacturer, current brand name)
- Bussmann AMWNA equivalent fuses (equivalent protection class)
- Other Class E, 4800V, 2A medium voltage PT fuses with 50kA interrupt rating
Works With
- Utility metering and revenue protection circuits
- Potential transformer protection relays and instrumentation
- Standard fuse clip and holder assemblies designed for ferrule-type fuses
- ANSI C37.41 and NETA-compliant electrical systems
