Overview
The Ferraz Shawmut A100P225-4 is an Amp-Trap® Form 101 semiconductor protection fuse rated 1000VAC / 750VDC, rated at 225A. This fast-acting, current-limiting fuse extends protection to systems requiring voltages up to 1000V, including UPS backup systems, AC and DC motor drives, and reduced-voltage motor starters. Ferraz Shawmut (now part of Mersen) is a global leader in electrical protection with decades of expertise in fuse technology.
Key Features
- Fast-Acting, Current-Limiting: Provides superior semiconductor protection with minimal let-through energy and reduced thermal stress on downstream components.
- 1000VAC / 750VDC Rating: Extends protection to higher-voltage systems beyond standard 600V offerings.
- Bolt-In Blade Mount: Direct installation with bolted blade terminals for secure, reliable electrical connection.
- 225A Amperage: Suitable for high-current industrial and data center applications.
- 2-Inch Diameter Form Factor: Compact design for space-constrained installations.
- 100kA Interrupting Rating: Handles significant fault currents without degradation.
Technical Specifications
- Nominal Voltage: 1000VAC (750VDC optional)
- Current Rating: 225A
- Form: 101 (Semiconductor Protection)
- Type: Amp-Trap® (Fast Acting, Current Limiting)
- Mounting: Bolted Blade (Bolt-In)
- Diameter: 2 inches
- Interrupting Capacity: 100kA
- Certifications: UL (Guide No. JFHR2)
Typical Applications
- Uninterruptible Power Supply (UPS) systems and battery backup
- AC and DC variable frequency drives (VFDs)
- Reduced-voltage motor starters and soft starters
- Industrial semiconductor power conversion equipment
- Energy storage and power conditioning systems
Compatibility & Replacements
Compatible With
- UPS systems (3-phase and single-phase)
- ABB, Allen-Bradley, GE, Siemens, and other major industrial drives
- Power distribution systems rated 1000V or less
- AC and DC motor control circuits
- Semiconductor protection applications requiring fast-acting fuses
Replaces / Drop-In Replacement For
- Mersen A100P225-4 (current Mersen product designation)
- Legacy Ferraz Shawmut A100P225 models
- Gould-brand equivalent A100P225-4 units
Works With
- Ferraz Shawmut A100P series fuses (15A to 1000A ratings)
- Any standard bolted-blade fuse holder rated 1000VAC, 225A or higher
- Industrial power distribution and protection equipment with bolt-on terminals
