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A4J - Class J - Fast-Acting

Approvals & Standards
UL listed to standard 248-8 File E2137
CSA certified to standard C22.2 no. 248.8
DC listed to UL 248
IEC 269-2-1

Amp-Trap fast-acting A4J fuses deliver excellent current-limiting protection to a wide variety of applications. Their unique dimensions prevent the substitution of other fuses with lower voltage ratings, interrupting ratings, or current-limiting capability.

Amp-Trap fast-acting A4J fuses deliver excellent current-limiting protection to a wide variety of applications. Their unique dimensions prevent the substitution of other fuses with lower voltage ratings, interrupting ratings, or current-limiting capability.

Key features & benefits

  • High current limitation for low peak let-thru current

  • Unique dimensions prevent replacement by other fuse classes

  • Fiberglass body provides dimensional stability in harsh industrial environments

  • Easy-to-read imprint label for quick recognition and replacement

Applications

  • Capacitors

  • Load centers

  • Panelboards

  • Switchboards

  • Bus duct

  • Feeder circuits

  • Circuit breakers

  • Lighting, heating, and general loads

Technical Specifications
Frequency (Hz) 50/60 Hz
Amperage Range 1 to 600 A
Fuse Class Class J
Speed/Characteristic Fast-Acting
UL Category Code JDDZ

Reference Finder

34 references in this series

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Item number Ampere rating Fuse size Clearing I2t At Rated Voltage Indication System Product weight
A4J1 See product
 1A - - No 0.044kg
A4J10 See product
 10A - - No 0.044kg
A4J100 See product
 100A - - No 0.1089kg
A4J110 See product
 110A - - No 0.342kg
A4J110EI See product
 110A - - Yes 0.3856kg
A4J125 See product
 125A - - No 0.342kg
A4J15 See product
 15A - - No 0.044kg
A4J150 See product
 150A - - No 0.342kg
A4J175 See product
 175A - - No 0.342kg
A4J20 See product
 20A - - No 0.044kg
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