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AJT Series / Class J / Time Delay

Maximum Circuit Protection, Minimal Size - 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. A mechanical Indicator/Microswitch Mount (EI) is available on blade-type (70 to 600A) fuses for visual or remote indication of open fuse condition.

Features

  • 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 available
Ratings
  • AC: 600VAC, 200kA I.R.
  • AC: 500VDC, 100kA I.R.
Approvals
  • 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
  • RoHS Compliant
Applications
  • Motor Circuits
  • Mains
  • Feeders
  • Branch Circuits
  • Lighting, Heating & General Loads
  • Transformers
  • Control Panels
  • Circuit Breaker Back-up
  • Bus Duct
  • Load Centers

Ferraz AJT Series Fuse Selection

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            
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