JLS040 Littelfuse JLS Series - UL Class J Fast-Acting Fuses Low Voltage Fuse 600V 40A Fuse - Essential Electric Supply
JLS040 Littelfuse JLS Series - UL Class J Fast-Acting Fuses Low Voltage Fuse 600V 40A Fuse - Essential Electric Supply
JLS040 Littelfuse JLS Series - UL Class J Fast-Acting Fuses Low Voltage Fuse 600V 40A Fuse - Essential Electric Supply
JLS040 Littelfuse JLS Series - UL Class J Fast-Acting Fuses Low Voltage Fuse 600V 40A Fuse - Essential Electric Supply
JLS040 Littelfuse JLS Series - UL Class J Fast-Acting Fuses Low Voltage Fuse 600V 40A Fuse - Essential Electric Supply
JLS040 Littelfuse JLS Series - UL Class J Fast-Acting Fuses Low Voltage Fuse 600V 40A Fuse - Essential Electric Supply
Littelfuse JLS040 - UL Class J Fast-Acting Fuse 40A 600V (200kA AIC)
JLS040 Littelfuse JLS Series - UL Class J Fast-Acting Fuses Low Voltage Fuse 600V 40A Fuse - Essential Electric Supply
JLS040 Littelfuse JLS Series - UL Class J Fast-Acting Fuses Low Voltage Fuse 600V 40A Fuse - Essential Electric Supply
JLS040 Littelfuse JLS Series - UL Class J Fast-Acting Fuses Low Voltage Fuse 600V 40A Fuse - Essential Electric Supply
JLS040 Littelfuse JLS Series - UL Class J Fast-Acting Fuses Low Voltage Fuse 600V 40A Fuse - Essential Electric Supply
JLS040 Littelfuse JLS Series - UL Class J Fast-Acting Fuses Low Voltage Fuse 600V 40A Fuse - Essential Electric Supply
JLS040 Littelfuse JLS Series - UL Class J Fast-Acting Fuses Low Voltage Fuse 600V 40A Fuse - Essential Electric Supply
Littelfuse JLS040 - UL Class J Fast-Acting Fuse 40A 600V (200kA AIC)

Littelfuse JLS040 - UL Class J Fast-Acting Fuse 40A 600V (200kA AIC)

Littelfuse
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Littelfuse JLS040 is a UL Class J fast-acting fuse designed for overcurrent protection in low-voltage circuits up to 600V AC. With a 40A current rating and 200kA interrupting capacity at 600V, it provides reliable short-circuit protection in demanding industrial environments. The fuse features a compact ferrule design with a 0.81-inch diameter and 2-3/8-inch length, constructed for fast-acting (FA) response to fault conditions. It meets multiple safety certifications including UL 248-8 Class J, CSA, and CE standards, with QPL-W-F-1814 military qualification. Typical applications include motor protection, transformer circuits, and industrial power distribution systems requiring high interrupting capacity.

Key Features & Specifications
  • Type: UL Class J fast-acting fuse with ferrule connection
  • Voltage Rating: 600V AC
  • Current Rating: 40A
  • Dimensions: 0.81" diameter x 2-3/8" length
  • Standards: UL 248-8 Class J, CSA Certified, CE, QPL-W-F-1814
  • Applications: Motor protection, transformer circuits, industrial power distribution
  • Class Rating: J
  • Connection: Ferrule
  • Barrels: 1
  • Velocity: FA (Fast Action)
  • AIC rating: 200kA@600Vac
  • Weight: 0.17 lb
  • Country of Origin: Mexico


Product Identification
  • UPC: 079458200751
  • GTIN: 00079458200751