$71.81 per piece


Brand / Manufacturer: MERSEN (FERRAZ SHAWMUT)

Amperage Rating: 40

Voltage: 600

UPC: 0782001960223

Department: 16

Series: A4J

Catalog Number: A4J40

Catalog / Class: J

Speed: Fast Acting

SKU: A4J40

Categories: , , ,

*Prices Subject to Change


40A 600V J FAST

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.

  • 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


  • Capacitors
  • Load centers
  • Panelboards
  • Switchboards
  • Bus duct
  • Feeder circuits
  • Circuit breakers
  • Lighting, heating, and general loads