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Approvals & Standards

AJT (1-600):

  • UL listed to standard 248-8 File E2137
  • DC listed to UL standard 248
  • CSA certified to standard C22.2 No. 248.8
  • IEC 60269-2-1

AJT (70-600) EI:

  • UL listed
  • DC tested to UL standard 248


Key features & benefits

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.

More specifications



  • Motor circuits
  • Mains
  • Feeders
  • Branch circuits
  • Lighting, heating & general loads
  • Transformers
  • Control panels
  • Circuit breaker back-up
  • Bus duct
  • Load centers


Product Specifications

Item Number



Fuse AJT - Class J - Time-delay 600VAC 500VDC 100A Blade EI Indicator Amp-Trap 2000®  



Rated voltage AC UL

600   V

Rated voltage DC UL

500   V


50/60   Hz

Ampere Rating

100   A

ROHS Compliant


Fuse Class

Class J  


Time Delay  


Clip or Bolted  

AC Max I.R./Breaking Capacity: I1

200   kA

Indication System


Indication System Type

EI Indicator  

Connection/Terminal Material

Silver-Plated Copper  

Connection/Terminal Type


Body/Insulating Material


Product Weight

0.36   lb

Product Diameter

1.063   in

Product Length

4.63   in

Sell Pack Quantity

1   Each

Sell Pack Weight

0.38   lb

Sell Pack Width

2.19   in

Sell Pack Length

5.00   in

Sell Pack Height

2.31   in