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Approvals & Standards

  • UL listed to standard 248-8 File E2137
  • CSA certified to standard C22.2 no. 248.8
  • DC listed to UL 248

Key features & benefits

The High Speed Class J (HSJ) combines the low I2t of a semiconductor fuse and the branch-circuit performance of a Class J UL Listed fuse into a single design. The HSJ can provide both branch circuit protection per NEC requirements, as well as very low I2t for protection of power semiconductors such as Diodes, SCRs, GTOs and SSRs.

More specifications


  • Branch circuits
  • Control panels
  • Electronic motor controllers
  • Phase controllers
  • Drives
  • Soft-starters
  • Solid state relays

Product Specifications

Item Number


Item Description (ERP)

600V 17-1/2A CLASS J HS FUSE  


Fuse Amp-Trap® 600V 17.5A High-Speed Class J HSJ Series  

EAN/UPC code


Rated voltage AC UL

600   V

Rated voltage DC UL

500   V

Rated current

17.5   A

ROHS Compliant


Fuse class

Class J  


High Speed  



AC Max I.R./Breaking Capacity: I1

200   kA

Contact materials

Tin-Plated Copper  

Connection/Terminal Type


Body/Insulating Material


Product Weight

0.0544   kg

Product Diameter

20.7   mm

Product Length

57.2   mm

Sell Pack Quantity

10   Each

Sell Pack Weight

0.5715   kg

Sell Pack Width

60.5   mm

Sell Pack Length

108   mm

Sell Pack Height

42.9   mm