Littelfuse LGR006H - 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.
Littelfuse

LGR006H

Alternate Item Number: 0LGR006.H

UPC: 079458077421


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Overview

The Littelfuse® POWR-PRO® JTD_ID Indicator Class J fuse delivers unmatched protection and reliability in compact industrial and commercial applications. Designed for circuits where space is at a premium, this current-limiting time-delay fuse combines a patented true dual-element design with visual blown fuse indication, ensuring superior performance even in high inrush current scenarios. The JTD_ID fuse is engineered to minimize nuisance fuse openings while providing immediate visual confirmation of fuse status, reducing downtime and enhancing operational safety. Industrial professionals rely on Class J fuses like the JTD_ID for applications requiring robust overcurrent protection without compromising on space efficiency. Common use cases include motor control centers, variable frequency drives, power distribution panels, and renewable energy systems where high inrush currents are prevalent. The compact Class J package makes it ideal for installations with limited mounting space, such as control cabinets, OEM equipment, and retrofit projects where existing infrastructure cannot accommodate larger fuse sizes. Selecting the right fuse for industrial applications requires balancing protection, reliability, and space constraints. The JTD_ID fuse excels in these areas by offering a time-delay characteristic that accommodates temporary overloads while providing fast response to sustained faults. Its visual indicator eliminates the need for manual inspection, allowing technicians to quickly identify blown fuses and restore power without delay. This feature is particularly valuable in critical infrastructure, manufacturing plants, and data centers where uninterrupted operation is essential. Littelfuse, a global leader in circuit protection solutions, has built a reputation for innovation and quality in the industrial fuse market. The POWR-PRO® series, including the JTD_ID, reflects the company’s commitment to delivering products that meet the demanding requirements of modern electrical systems. With a focus on reducing nuisance openings and improving system uptime, Littelfuse fuses are trusted by engineers and maintenance teams worldwide. Installation and maintenance of the JTD_ID fuse are straightforward, thanks to its standardized Class J footprint. Professionals can integrate it seamlessly into existing fuse blocks or panel designs, ensuring compatibility with a wide range of industrial equipment. The fuse’s high interrupting rating and current-limiting capabilities provide an additional layer of protection against catastrophic failures, safeguarding both equipment and personnel. For applications where space is limited but protection cannot be compromised, the Littelfuse POWR-PRO® JTD_ID Indicator Class J fuse stands out as a reliable, high-performance solution. Its combination of visual indication, time-delay characteristics, and compact design makes it an indispensable component in modern electrical protection strategies.
  • Patented true dual-element design for high inrush current circuits
  • Compact Class J package for space-constrained installations
  • Visual blown fuse indication reduces downtime and enhances safety
  • Current-limiting time-delay characteristics minimize nuisance openings
  • Trusted by industrial professionals for reliable overcurrent protection

Specifications

Application
Lighting
Brand Name
Littelfuse
Mounting Type
Standardized Class J footprint
Series
POWR-PRO® JTD_ID
Size
Compact Class J
Special Features
Fast-Acting
Standard
Standard 248-14 UL Listed/CSA
Sub Brand
LGR Series
Type
InLine Fuse
Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount

GPM-SRR90

Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount
Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20

C331156

Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20
Fuse Block 1500VAC 1500VDC 400A 1-Pole Stud M8

1SCM8

Fuse Block 1500VAC 1500VDC 400A 1-Pole Stud M8
Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20

E1062696

Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20
POWR-JAW clamps improve the contact between fuse and clip. The unnecessary heat from poor contact due to the loss of spring force in the clips can cause nuisance fuse opening and premature aging of surrounding components. High temperature phenolic resin knob designed for the most severe environments 7 sizes to provide effective coverage. Simple design makes installation easy.

LCC5

POWR-JAW clamps improve the contact between fuse and clip. The unnecessary heat from poor contact due to the loss of spring force in the clips can cause nuisance fuse opening and premature aging of surrounding components. High temperature phenolic resin knob designed for the most severe environments 7 sizes to provide effective coverage. Simple design makes installation easy.
9F61 Size B Clips 1.6in

9F61BWW460

9F61 Size B Clips 1.6in

Frequently Asked Questions about Littelfuse

What certifications and standards do Littelfuse products comply with?

Littelfuse products are certified to multiple international standards, including UL (Underwriters Laboratories), CSA (Canadian Standards Association), CCC (China Compulsory Certification), and EAC (Eurasian Conformity). Customers can verify specific product certifications by consulting individual product datasheets on Littelfuse.com, which provide comprehensive details about standards compliance for each component.

What industries and applications are Littelfuse products used for?

Littelfuse products are critical for electrical protection and safety across multiple industrial sectors, including manufacturing, automation, power distribution, and electrical control systems. Their comprehensive product portfolio serves industries that require robust electrical protection, including motor and pump applications, solar installations, programmable logic controllers (PLCs), electrical switch panels, and critical infrastructure environments. Key product lines protect against overcurrent, voltage transients, ground faults, and temperature-related electrical risks, ensuring equipment safety and operational reliability.

What technical support does Littelfuse offer?

Littelfuse offers comprehensive technical support through multiple channels. Their Technical Hotline (800-TEC-FUSE) provides direct access to engineers who can help identify issues and recommend solutions. Additionally, Littelfuse offers extensive online Technical Resources at Littelfuse.com, including datasheets, product manuals, whitepapers, application guides, and online design tools. Their experienced product and application engineers also provide step-by-step support from design to installation.

What are the main product lines offered by Littelfuse?

Littelfuse offers comprehensive industrial protection and control product lines, including fuses, fuse holders, protection relays, temperature sensors, and electrical safety components. Their key product categories span surge protective devices, custom OEM products, electrical switch panels, medium voltage fuses, ground-fault protection relays, motor and pump protection devices, and temperature sensors. These products are designed to minimize electrical safety hazards, limit equipment damage, improve productivity, and safeguard personnel from electrical faults.

What are the key features of Littelfuse products?

Littelfuse products feature exceptional circuit protection technologies with key characteristics including UL/IEC safety standard compliance, low internal resistance, and advanced protective capabilities across multiple product lines. Their components provide critical protection for industrial systems, offering features like overcurrent protection, voltage transient suppression, and resettable protection devices with ultra-low resistance and compact designs. Key product lines include fuses, metal oxide varistors (MOVs), TVS diodes, PolySwitch devices, and specialized electronic protection components that enhance system reliability and safety.

What environmental ratings do Littelfuse products have?

Littelfuse products feature comprehensive environmental ratings, including NEMA Type 1, 2, 3, 3R, 4/4X, 12, and 13 certifications, as well as IP65 protection. These ratings ensure superior protection in diverse industrial environments, with an operating temperature range of -40°F to +131°F (-40°C to +55°C). Many products also include UV-stabilized materials and neoprene gaskets for enhanced durability in outdoor and challenging conditions.

What accessories are available for Littelfuse products?

Littelfuse offers several key accessories across their product lines, including fuse holders, voltage monitoring modules, and terminal connectors. Specific accessories include the LPSM003ZXID (indicating) and LPSM003Z (non-indicating) POWR-SAFE Dead Front fuse holders for Class CC and Midget-Style fuses, the VRM6048 voltage monitor accessory module, and female quick connect terminals (P1015 series) in various wire gauge sizes. These accessories are designed to enhance protection, monitoring, and connectivity for Littelfuse electrical components.

What is Littelfuse's warranty policy?

Littelfuse provides comprehensive warranty details on their official website at www.littelfuse.com/warranty. Customers should visit this page to review the specific warranty terms and conditions for their specific product lines. For direct warranty support or questions, customers can contact Littelfuse Technical Support at 1-800-TEC-FUSE or email [email protected].

What communication protocols do Littelfuse products support?

Littelfuse supports a comprehensive range of industrial communication protocols, including PROFIBUS, PROFINET, EtherNet/IP, DeviceNet, Modbus RTU, and CANopen. Our products provide flexible connectivity solutions across multiple industrial automation platforms, enabling seamless integration with various control systems and network architectures.

How are Littelfuse products typically installed?

Littelfuse products are typically installed using specialized mounting hardware like fuse holders, blocks, and panels designed for specific industrial applications. The POWR-SAFE Dead Front holders, for example, provide optimum protection for Class CC and Midget-Style fuses, supporting installations up to 600 VAC/DC. Installation often involves using precision terminals with strain relief, such as 0.25 in. female quick connect terminals, to ensure secure and safe electrical connections in industrial control systems.