Mersen (Ferraz Shawmut) Products


Formerly

SMARTSPOT  WITH MAXIMUM CIRCUIT PROTECTION

AJT

Time Delay / Class J

 

Amp-trap 2000 SmartSpot AJT fuses now provide a visual open fuse indicator. With advanced material technology added to the existing product line 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 for handling harmless in-rush currents, its current limiting ability (the most current limiting UL fuse class!), and wide range of ratings (from 1 to 600 Amperes), give excellent protection for all your applications.

Features/Benefits:

  • Solid State SmartSpot 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

  • 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 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

HIGHLIGHTS:

 

APPLICATIONS:

  • Smart Spot Indicator

  • Time Delay

  • Highly Current Limiting

  • DC Ratings

  • Optional Mechanical Indicator
    (70 to 600A fuses)

  • Motor Circuits

  • Mains

  • Feeders

  • Branch Circuits

  • Lighting, Heating & General Loads

  • Transformers

  • Control Panels

  • Circuit Breaker Back-up

  • Bus Duct

  • Load Centers

 

Standard Fuse Ampere Ratings, Catalog Numbers

AMPERE
RATING
CATALOG
NUMBER
  AMPERE
RATING
CATALOG
NUMBER
  AMPERE
RATING
CATALOG
NUMBER
  AMPERE
RATING
CATALOG
NUMBER
1 AJT1 4-1/2 AJT4-1/2 25 AJT25 125 AJT125
1-1/4 AJT1-1/4 5 AJT5 30 AJT30 150 AJT150
1-1/2 AJT1-1/2 5-6/10 AJT5-6/10 35 AJT35 175 AJT175
1-6/10 AJT1-6/10 6 AJT6 40 AJT40 200 AJT200
1-8/10 AJT1-8/10 6-1/4 AJT6-1/4 45 AJT45 225 AJT225
2 AJT2 7 AJT7 50 AJT50 250 AJT250
2-1/4 AJT2-1/4 8 AJT8 60 AJT60 300 AJT300
2-1/2 AJT2-1/2 9 AJT9 70 AJT70 350 AJT350
2-8/10 AJT2-8/10 10 AJT10 80 AJT80 400 AJT400
3 AJT3 12 AJT12 90 AJT90 450 AJT450
3-2/10 AJT3-2/10 15 AJT15 100 AJT100 500 AJT500
3-1/2 AJT3-1/2 17-1/2 AJT17-1/2 110 AJT110 600 AJT600
4 AJT4 20 AJT20    

Note: Indicator Not availible (1-7a)

 

For more about Smart Spot,
visit our Information Request page