Overview
The Ferraz Shawmut A100P225-4 is a high-performance Amp-Trap semiconductor protection fuse engineered for industrial power distribution and motor control applications. Rated 1000V, it extends protection for UPS systems, AC and DC drives, reduced voltage motor starters and similar applications where lower I2t and superior reliability are needed. The A100P series delivers fast-acting protection with precise current limiting to minimize equipment damage during fault conditions.
Key Features
- Fast-acting, current-limiting semiconductor fuse with bolt-in blade mount
- 100 kiloampere interrupting rating with blade terminal type
- Lower I2t minimizes thermal damage to protected components on short circuit
- Form 101 class fuse with controlled arc voltage reducing stress to circuit components
- Part of the A100P series with ratings from 15 through 1000 amperes for wide range of high voltage applications
Technical Specifications
- Current Rating: 225A
- Voltage Rating: 1000 Vac/750 VDC
- Interrupting Rating: 100 kiloampere
- Case Diameter: 2 inches
- Dimensions: 5.72 in H × 2 in W × 2 in D
- Net Weight: 1 lb 9 oz
- Fuse Class: Form 101
- Mounting: Bolt-in blade connection
- Response Time: 25 ms
- UL Listed: JFHR2
Typical Applications
The A100P225-4 protects UPS systems, AC/DC drives, reduced voltage motor starters and other 1000V or less semiconductor devices. This fuse is ideal for:
- Data center and backup power systems
- Industrial AC and DC motor drive circuits
- Soft-start and reduced-voltage motor controllers
- Power conversion equipment protection
- Critical load power distribution
Compatibility & Replacements
Compatible With
- UPS systems (all 1000V or less designs)
- AC and DC drive systems
- Reduced voltage motor starters
- Semiconductor-based power control equipment
- 1000V power distribution circuits
Replaces / Drop-In Replacement For
- Mersen A100P225-4 (rebranded equivalent)
- Legacy Gould A100P225-4 units
- Form 101 225A 1000V semiconductor fuses from other manufacturers meeting JFHR2 standard
Works With
- Bolt-in fuse holders and clips rated for Form 101
- Any 1000V/750VDC power circuit with 225A or less load
- Industrial control systems using semiconductor protection
- Equipment designed for JFHR2-rated fuses
