Product Description
Ferraz-Shawmut AMP-TRAP 2000 Class J Time Delay Power Fuses AJT - High Current Protection
Premium Class J Time Delay Power Fuses with SmartSpot Indicator | 1-600A Rating | 300kA Interrupting | UL Listed | Motor & Transformer Protection
Product Overview
The Ferraz-Shawmut AMP-TRAP 2000 Class J TD Power Fuses AJT deliver superior high-current protection for industrial power systems. Featuring innovative SmartSpot solid-state indicator technology and exceptional 300kA interrupting capability, these time delay fuses provide reliable protection for motors, transformers, and main electrical distribution systems while offering the most current-limiting performance in the UL Class J category.
Key Features & Benefits
Advanced Protection Technology
- Solid State SmartSpot Indicator provides clear visual indication of fuse status
- Time delay characteristics handle motor starting and transformer inrush currents
- 300kA interrupting rating - self-certified with UL witnessed testing
- Extremely current limiting design delivers the lowest peak let-through current
- Most current limiting UL class fuse - industry-leading performance
Installation & Design Advantages
- Compact footprint requires less mounting space and enables smaller, more economical fuse blocks
- Easy 2-to-1 selectivity prevents nuisance shutdowns in coordinated systems
- Unique Class J dimensions prevent dangerous replacement errors
- High-visibility orange label ensures instant recognition and simplified maintenance
- Optional EI Indicator/Switch mount available for AJT70 to 600A sizes for open fuse indication
Durability & Reliability
- Metal-embossed identification provides permanent date and catalog number traceability
- Fiberglass body construction ensures dimensional stability in harsh industrial environments
- High-grade silica filler guarantees fast arc quenching and optimal performance
- Industrial-grade construction withstands demanding power system applications
Technical Specifications
| Specification | Details |
|---|---|
| AC Rating | 1 to 600 Amperes, 600VAC, 200kA I.R. (300kA I.R. self-certified, UL witnessed) |
| DC Rating | 1 to 600 Amperes, 500VDC, 10kA I.R. |
| Fuse Class | J (High Capacity, Current Limiting) |
| Time Delay Characteristic | Yes - TD (Time Delay) |
| Status Indicator | Solid State SmartSpot Indicator |
| Body Material | Fiberglass with high-grade silica filler |
| Optional Features | EI Indicator/Switch mount (AJT70-600) |
Key Highlights
? SmartSpot Indicator
Solid-state visual indication of fuse status
⏱️ Time Delay
Handles motor starting and transformer inrush
? Highly Current Limiting
Most current limiting UL class fuse available
⚡ DC Ratings
Dual AC/DC capability for versatile applications
? Optional Mechanical Indicator
Available for 70-600A fuses with switch mount
Applications
| Application Type | Specific Uses |
|---|---|
| Motor Circuits | Large motor protection, motor control centers, variable frequency drives |
| Main & Feeder Circuits | Main electrical distribution, feeder protection, bus duct applications |
| Transformers | Power transformer protection, distribution transformer circuits |
| Branch Circuits | Lighting, heating, general loads, control panels |
| Circuit Breaker Back-up | Load centers, distribution panels, selective coordination |
Certifications & Approvals
| Product Range | Certifications |
|---|---|
| AJT (1-600A) | UL Listed to Standard 248-8 DC Listed to UL Standard 198L CSA Certified to Standard C22.2 No. 248.8 IEC 269-2-1 |
| AJT (70-600A) EI | UL Component Recognized DC Tested to UL Standard 198L |
Why Choose AMP-TRAP 2000 Class J Power Fuses?
✓ Industry-leading current limitation - Most current limiting UL Class J fuse available
✓ Superior system coordination - Easy 2-to-1 selectivity prevents nuisance outages
✓ Advanced status indication - SmartSpot technology provides clear fuse condition visibility
✓ Space-saving design - Compact footprint reduces panel space requirements
✓ Installation safety - Unique Class J dimensions prevent dangerous misapplication
✓ Versatile protection - Time delay handles both motor and transformer applications
✓ Enhanced reliability - 300kA interrupting capability with UL witnessed testing
✓ Maintenance efficiency - High-visibility labeling and optional indicators speed service
Perfect for: Industrial power distribution systems, motor control centers, transformer protection, main electrical panels, and any high-current application requiring superior current limitation and reliable time-delay protection.
