AJT - Class J - Time-delay
Amp-Trap 2000® AJT fuses provide non-indication as well as a SmartSpot visual open fuse indicator. With advanced material technology the AJT fuse provides IEC Type 2 No Damage protection to main, feeder, and branch circuits, for all types of loads — yet, they require only half the mounting space needed for 600VAC Class RK fuses. AJT’s time-delay characteristics are ideal for handling typical motor and transformer inrush currents, while also providing superior current-limiting ability.
Amp-Trap 2000® AJT fuses provide non-indication as well as a SmartSpot visual open fuse indicator. With advanced material technology the AJT fuse provides IEC Type 2 No Damage protection to main, feeder, and branch circuits, for all types of loads — yet, they require only half the mounting space needed for 600VAC Class RK fuses. AJT’s time-delay characteristics are ideal for handling typical motor and transformer inrush currents, while also providing superior current-limiting ability.
Product data sheets
- DS-AJT-Class-J-Time-Delay-Mersenpdf - 261.91 KB 
Brochures and Flyers
- BR-Amp-Trap-2000-Fuses-Brochurepdf - 2.09 MB 
- BR-Fuse-Control-Program-Brochurepdf - 2.83 MB 
- BR-Panel-Builder-Mersen-ENpdf - 6.01 MB 
Charts
- CHT-UL-Class-to-Part-Number-Quick-Referencepdf - 175.45 KB 
- CHT-Recommended-Fuses-and-Fuse-Holder-Chartpdf - 273.61 KB 
Product Applications
Compliance
- COM-CE-ROHS-Declaration_Class_Type_ J-20-0004pdf - 216.13 KB 
Key features & benefits
- Non-indicating or solid state SmartSpot visual blown fuse indicator 
- Time-delay for motor starting and transformer inrush 
- 300kA interrupting rating - self-certified, UL witnessed tests 
- Extremely current-limiting for low peak let-thru current 
- Most current-limiting UL class fuse 
- Recommended for Arc Flash energy reduction 
- Small footprint requires less mounting space and allows smaller, more economical fuse blocks 
- Easy 2-to-1 selectivity for prevention of nuisance shutdowns 
- Unique Class J dimensions prevent replacement errors 
- High-visibility orange label gives instant brand recognition 
- Metal-embossed date and catalog number for traceability and lasting identification 
- Fiberglass body provides dimensional stability in harsh industrial settings 
- High-grade silica filler ensures fast arc quenching 
- Optional EI indicator/switch mount for AJT70 to 600 open fuse indication 
Applications
- Motor circuits 
- Mains 
- Feeders 
- Branch circuits 
- Lighting, heating & general loads 
- Transformers 
- Control panels 
- Circuit breaker back-up 
- Bus duct 
- Load centers 
| Frequency (Hz) | 50/60 Hz | 
| Amperage Range | 1 to 600 A | 
| Fuse Class | Class J | 
| Speed/Characteristic | Time Delay | 
| UL Category Code | JDDZ | 
| CSA File Number | Class 1422-02 Guide 012636_0 | 
| Reach Compliant | Yes | 
| Max Operating Temp. | 80 °C | 
| Max Storage Temp. | 80 °C | 
| Min Storage Temp. | -25 °C | 
| Harmonized System | 853610 | 
| UL File Number | File E2137 | 
Reference Finder
Scroll
| Item number | Ampere rating | Fuse size | Clearing I2t At Rated Voltage | Indication System | Product weight | 
|---|---|---|---|---|---|
| AJT1-1/2N See product | 1.5A | - | - | No | 0.044kg | 
| AJT1-1/4N See product | 1.25A | - | - | No | 0.044kg | 
| AJT1-6/10N See product | 1.6A | - | - | No | 0.044kg | 
| AJT1-8/10N See product | 1.8A | - | - | No | 0.044kg | 
| AJT10 See product | 10A | - | - | Yes | 0.044kg | 
| AJT100 See product | 100A | - | - | Yes | 0.1093kg | 
| AJT100EI See product | 100A | - | - | Yes | 0.1633kg | 
| AJT100N See product | 100A | - | - | No | 0.1093kg | 
| AJT10N See product | 10A | - | - | No | 0.044kg | 
| AJT110 See product | 110A | - | - | Yes | 0.3465kg | 
 
   
   
   
   
   
  