JDL Class J Time-Delay Fuses

JDL Class J Time-Delay Fuses

Edison JDL Class J fuses are among the most current limiting time-delay fuses available. Their small physical size and high performance characteristics makes Class J fuses ideal for any space-limited application.



Data Sheet #1303 (1-60A)

Data Sheet #1304 (70-600A)

Catalog Number JDL
Volts 600Vac
Amps 1 - 600A
Interrupting Rating 200kA RMS Sym
Agency Approvals UL Listed, Class J, Guide JDDZ, File E162363; CSA Certified per C22.2, No. 248.8
Self-Certified DC Ratings
1-600 Amps
- 300Vdc
- IR 20kA DC



  • Space saving dimensions vs. Class R.
  • Dual-Element construction provides superior time-delay to pass harmless motor or transformer surges.
  • High performance with fatigue - free cycling capabilities.
  • Extremely current limiting.


  • Recommended for Type 2 “No Damage” protection of IEC style motor starters and contactors.
  • Use to protect lower interrupting rating circuit breakers.
  • All general purpose circuits with inductive (high inrush) loads, including motor and motor branch circuits, and transformer circuits. Also suitable for lighting loads.