Littelfuse JTD150ID POWR-PRO Class J Time-Delay Indicator Fuse, 150A

Littelfuse JTD150ID POWR-PRO Class J Time-Delay Indicator Fuse, 150A

The Littelfuse POWR-PRO JTD_ID Series JTD150ID is a Class J time-delay fuse rated 150A at 600VAC/500VDC, built in a compact knife-blade package for circuits where panel space is at a premium. Its patented true dual-element design delivers current-limiting time delay for circuits with high inrush currents, while the built-in blown-fuse indicator window darkens permanently the moment the fuse opens – giving maintenance personnel instant visual confirmation without power or testing. The JTD150ID is UL Listed and CSA certified, making it suitable for mains, feeders, branch circuits, motor control centers, and other demanding industrial and commercial electrical applications.

Key Features

• Ampere Rating: 150A for dependable overcurrent protection on mains, feeders, and branch circuits.
• Voltage Rating: 600VAC / 500VDC supports a broad range of AC and DC circuit applications.
• Interrupting Rating: 20,000A@500VDC for reliable performance under demanding short-circuit conditions.
• Time-Delay Opening: Slo-Blo/Time Lag (T)/Time Delay characteristic with a patented true dual-element design reduces nuisance fuse opening in circuits with high inrush currents.
• Blown-Fuse Indication: The indicating window darkens once the fuse opens and stays dark regardless of power state, allowing operators to pinpoint an open fuse at a glance and reducing downtime and testing time.
• Compact Class J Package: Knife-blade package size designed specifically for space-constrained enclosures and panels.
• IEC Type II Protection: Delivers IEC Type II "No Damage" short-circuit and ground-fault protection to IEC and NEMA type motor starters, helping reduce equipment damage.

Certifications & Compliance

• UL Listed (UL JDDZ E81895)
• CSA Certified (CSA 1422-02 029862)

Technical Specifications

• VAC (V): 600
• VDC (V): 500
• Ampere Rating (A): 150

Typical Applications

• Fused Combination Motor Controllers Requiring IEC Type II (No Damage) Protection
• Motor Control Centers
• UL Listed Series-Rated Molded Case Circuit Breaker Panels
• Transformer Protection
• General-Purpose Mains, Feeders, and Branch Circuits
• Space-Constrained Panels and Enclosures

Why Littelfuse?

Littelfuse backs the JTD150ID POWR-PRO Class J fuse with UL Listing and CSA certification, giving specifiers confidence in code-compliant performance for professional electrical installations. The patented true dual-element, time-delay construction reduces nuisance opening while the permanent blown-fuse indicator improves safety by minimizing personnel exposure to live circuits and speeding up troubleshooting. For facilities that need compact, reliable overcurrent protection with faster fault identification, the Littelfuse JTD_ID Series delivers superior protection and reduced downtime.