JTD Series - UL Class J Time-Delay Fuses

Series: JTD
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Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

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.

Applications:

  • 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.

Features:

  • 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. Other forms of indication requires the power to remain on, which causes a safety hazard for personnel.

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Access specifications, certifications, check availability and order parts below

Catalog #Amps (A)Interrupting RatingOpeningSizeStockSamplesCompare
JTD.8000.820 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
JTD001120 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
JTD01.51.520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
JTD01.61.620 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
JTD01.81.820 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
JTD1.251.2520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
JTD002220 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
JTD02.52.520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
JTD02.82.820 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
JTD2.252.2520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
JTD003320 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
JTD03.23.220 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
JTD03.53.520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
JTD004420 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
JTD04.54.520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
JTD005520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
JTD05.65.620 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
JTD006620 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
JTD007720 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
JTD008820 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
JTD009920 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
JTD0101020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
JTD0121220 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
JTD0151520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
JTD17.517.520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
JTD0202020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
JTD0252520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
JTD0303020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
JTD0353520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
JTD0404020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
JTD0454520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
JTD0505020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
JTD0606020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
JTD0707020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
JTD0808020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
JTD0909020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
JTD10010020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
JTD11011020 kA @ 500 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
JTD12512520 kA @ 500 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
JTD15015020 kA @ 500 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
JTD17517520 kA @ 500 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
JTD20020020 kA @ 500 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
JTD22522520 kA @ 500 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
JTD25025020 kA @ 500 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
JTD30030020 kA @ 500 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
JTD35035020 kA @ 500 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
JTD40040020 kA @ 500 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
JTD45045020 kA @ 500 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
JTD50050020 kA @ 500 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
JTD60060020 kA @ 500 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder

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Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
0JTD225.X FUS 600V T/D CLASS J 225A RoHS No 01/14/2014 PbFree No
0JTD250.X FUS 600V T/D CLASS J 250A RoHS No PbFree No
0JTD300.X FUS 600V T/D CLASS J 300A RoHS No 02/19/2019 PbFree No 02/19/2019 No
0JTD350.X FUS 600V T/D CLASS J 350A RoHS No PbFree No
0JTD400.X FUS 600V T/D CLASS J 400A RoHS No PbFree No
0JTD450.X FUS 600V T/D CLASS J 450A RoHS No PbFree No
0JTD500.X FUS 600V T/D CLASS J 500A RoHS No PbFree No
0JTD600.X FUS 600V T/D CLASS J 600A RoHS No PbFree No
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