30A 600VAC 300VDC (20.6 x 57.2mm) Time Delay Fuse

CAD $9.49
Part Number:
0.09 LBS
Calculated at Checkout



JTD_ID Series - UL Class J Time-Delay Fuses with Indication

The Littelfuse POWR-PRO JTD_ID Indicator Class J fuse provides visual blown fuse indication and maximum protection in a compact package. The compact Class J package was designed specifically for circuits where space is at a premium. The current limiting time delay JTD_ID offers a patented true dual-element design that is ideal for use in circuits with high inrush currents. Superior performance characteristics of JTD_ID Indicator fuses reduce nuisance fuse opening and the blown fuse indication reduces downtime and increases safety.



  • Fused combination motor controllers to provide IEC Type II (no damage) motor branch-circuit short-circuit and ground fault protection.
  • Motor control centers
  • Transformer protection
  • Protection for UL Listed series-rated molded case circuit breaker panels
  • General purpose circuits — mains, feeders and branch circuits — especially when space is at a premium.



  • Reduced down-time — A glance at the indicating window of a JTD_ID indicator fuse pinpoints open fuses immediately. If the window is dark, the fuse has opened. It’s that simple. No fuse testing required. Machine operators can immediately determine that there is an open fuse and request maintenance personnel to bring the proper replacement.
  • Reduce nuisance opening — Indicator fuses have superior time-delay and cycling characteristics they can be used on a variety of applications, thus decreasing fuse inventory.
  • Reduce fuse inventory — Because JTD_ID Indicator fuses have superior performance characteristics they can be used on a variety of applications, thus decreasing fuse inventory.
  • Reduce equipment damage — Indicator fuses provide superior overload and short circuit protection that can reduce equipment damage. Indicator fuses also provide IEC Type II “No Damage” protection to IEC and NEMA type motor starters.
  • Reduce accidents — The JTD_ID Indicator fuse improves safety by minimizing exposure to live circuits. Unlike other forms of blown fuse indication, once the indicator window darkens, it stays dark. It does not matter if the power is on or off or if the fuse is in a toolbox.


Ampere Rating (A) 30
VDC (V) 300
VAC (V) 600
Opening Slo-Blo®/Time Lag (T)/Time Delay
Package Size Industrial Cartridge 2 1/4" x 13/16" (20.6 x 57.2mm)
Interrupt Rating 300000A@600VAC
Interrupt Rating 20000A@300VDC



Manufacturer's Website

JTD_ID Series Spec Sheet