Back
Where to buy Contact us
PHP-AJT-Photos

AJT - Class J - Time-delay

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

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.

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

Technical Specifications

Frequency (Hz) 50/60 Hz
Amperage Range 1 to 600 A
Fuse Class Class J
Speed/Characteristic Time Delay
UL Category Code JDDZ

Reference Finder

103 references in this series

Scroll

Item number Ampere rating Fuse size Clearing I2t At Rated Voltage Indication System Product weight
AJT35N See product
 35A - - No 0.0757kg
AJT3N See product
 3A - - No 0.044kg
AJT4-1/2N See product
 4.5A - - No 0.044kg
AJT40 See product
 40A - - Yes 0.0757kg
AJT400 See product
 400A - - Yes 0.8119kg
AJT400EI See product
 400A - - Yes 0.8709kg
AJT400EIB See product
 400A - - Yes 0.8709kg
AJT400N See product
 400A - - No 0.8119kg
AJT40N See product
 40A - - No 0.0757kg
AJT45 See product
 45A - - Yes 0.0757kg
Back to top