Description
The Mersen AJT8N is a time-delay 8A Class J fuse rated for 600V AC and 500V DC, designed to provide reliable current-limiting protection for main, feeder, branch, motor, transformer, and general-purpose circuits. The Amp-Trap 2000® AJT fuse features time-delay characteristics that help handle typical motor starting and transformer inrush currents while providing high interrupting and current-limiting performance. Its compact Class J design requires less mounting space than traditional Class RK fuses, making it a practical choice where panel space is limited.
Key Features
- 8A Time-Delay Protection: Provides time-delay overcurrent protection while accommodating typical motor and transformer inrush currents.
- 600V AC / 500V DC Rating: Suitable for electrical systems rated up to 600V AC and 500V DC.
- Class J Fuse: Provides current-limiting protection for main, feeder, branch, motor, transformer, and general-purpose circuits.
- High Interrupting Rating: Provides a 200 kA AC interrupting rating for applications with high available fault currents.
- Compact Design: Requires less mounting space than 600V Class RK fuses, helping reduce panel space requirements.
- Ferrule Connection: Features a ferrule terminal design with tin-plated copper terminal material and clip mounting.
- Non-Indicating Version: The AJT8N is the non-indicating version of the AJT fuse and does not include a visual open-fuse indicator.
Specifications
| Technical Specification | Details |
|---|---|
| Product Series | AJT – Class J – Time-Delay |
| Item Number | AJT8N |
| Ampere Rating | 8 A |
| Rated Voltage AC UL | 600 V AC |
| Rated Voltage DC UL | 500 V DC |
| Frequency | 50/60 Hz |
| Fuse Class | Class J |
| Speed/Characteristic | Time-Delay |
| Mounting | Clip |
| AC Max Interrupting Rating | 200 kA |
| Connection/Terminal Material | Tin-Plated Copper |
| Connection/Terminal Type | Ferrule |
| Product Diameter | 0.81″ |
| Product Length | 2.25″ |
| Product Weight | 0.097 lbs |
| Body/Insulating Material | GMG |
| RoHS Compliant | Yes |
| AC or DC | AC/DC |
| Product Group | Low Voltage UL/CSA Fuses |






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