Overview
The Shawmut A25X800 is a semiconductor protection fuse manufactured by FERRAZ SHAWMUT (now Mersen). Rated at 250V AC and 800A, this Type 4 Amp-trap fuse delivers high current-limiting protection for critical industrial applications. The Shawmut A25X800 is designed to safeguard semiconductor equipment and power distribution systems against short circuits and overcurrent faults.
Key Features
- Current-limiting Type 4 design for rapid fault interruption
- 250V AC rated voltage with 800A continuous current capacity
- Semiconductor protection fuse—ideal for electronic and power equipment
- Compact Form 101 body design for standard fuse holders
- UL/CSA listed for North American applications
- Long service life with stable operating characteristics
Technical Specifications
- Manufacturer: FERRAZ SHAWMUT (Mersen)
- Part Number: A25X800
- Voltage Rating: 250V AC
- Current Rating: 800A
- Fuse Type: Semiconductor Protection (Type 4)
- Form Factor: Form 101
- Technology: Current-limiting (Amp-trap)
- Interrupting Rating: 200kA at 250V
- Certifications: UL Listed, CSA Certified
Typical Applications
- Semiconductor and power rectifier protection
- Industrial power distribution panels and switchboards
- Transformer secondary circuits
- Motor control circuits requiring high current capacity
- Factory automation and manufacturing equipment
- Heavy-duty electrical systems and substations
Compatibility & Replacements
Compatible With
- Standard 250V AC industrial electrical systems
- Form 101 fuse holders and clips
- Power distribution panels rated for 250V operation
- Semiconductor protection circuits
- UL/CSA-listed equipment requiring current-limiting fuses
Replaces / Drop-In Replacement For
- Shawmut A025R800 (direct equivalent)
- Other 800A, 250V semiconductor fuses with equivalent Form 101 dimensions
Works With
- Industrial control systems requiring high-capacity current protection
- Three-phase power distribution equipment
- DC/AC rectifier and converter circuits
- Panelboards from GE, Siemens, Square D, and other major OEMs
