Littelfuse LGR001H - 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

LGR001H

Alternate Item Number: 0LGR001.H

UPC: 079458077346

Documents & Media
BrochureTechnical BulletinSpecification Sheet

Contact for Pricing

Minimum Qty: 100

Multiplier: 100

*Contact for lower quantities*

Overview

The Littelfuse® POWR-PRO® JTD_ID Indicator Class J fuse (SKU: LGR001H) represents a pinnacle of protective device technology, engineered for demanding industrial and commercial applications where space is a critical constraint. This compact Class J fuse delivers exceptional current-limiting and time-delay performance, making it an indispensable component for safeguarding sensitive electrical circuits. Its patented true dual-element design is specifically optimized to handle high inrush currents, a common challenge in motor starting, transformer energization, and other applications involving significant transient loads. By effectively managing these surges, the JTD_ID fuse significantly reduces the likelihood of nuisance openings, thereby enhancing system reliability and minimizing unplanned downtime. A standout feature of the JTD_ID Indicator series is its integrated visual blown fuse indication. This crucial safety and diagnostic feature provides immediate, unambiguous feedback to maintenance personnel, allowing for rapid identification of a tripped fuse. This not only expedites troubleshooting and fuse replacement but also contributes to a safer working environment by clearly signaling a fault condition. The ability to quickly ascertain fuse status is paramount in industrial settings, where operational continuity and safety are non-negotiable. The POWR-PRO JTD_ID Indicator fuse is designed for optimal performance in circuits requiring robust protection against both short circuits and overloads. Its Class J footprint ensures compatibility with a wide range of existing panelboards and equipment designed for this standard, facilitating seamless integration and upgrades. The time-delay characteristic is vital for circuits with inductive loads that experience temporary current spikes during normal operation, preventing unnecessary fuse interruption while still offering comprehensive protection against sustained overcurrents. Key benefits and features of the Littelfuse POWR-PRO JTD_ID Indicator Class J fuse include: * **Superior Protection:** Offers advanced current-limiting and time-delay capabilities for comprehensive circuit safeguarding. * **High Inrush Current Handling:** Patented dual-element design effectively manages transient surges, preventing nuisance tripping. * **Visual Blown Fuse Indication:** Provides clear, immediate visual feedback for rapid fault identification and reduced downtime. * **Compact Class J Footprint:** Ideal for space-constrained applications, ensuring compatibility with standard panelboards. * **Enhanced Reliability:** Minimizes nuisance openings, contributing to consistent system operation and reduced maintenance. Littelfuse has a long-standing reputation for manufacturing high-quality, reliable electrical protection devices. The POWR-PRO JTD_ID Indicator fuse exemplifies this commitment, offering a dependable solution for critical applications across various industries, including manufacturing, automation, power distribution, and HVAC systems. When selecting fuses for your critical infrastructure, choosing the Littelfuse POWR-PRO JTD_ID Indicator Class J fuse ensures a combination of advanced protection, operational efficiency, and enhanced safety.
  • Compact Class J fuse with visual blown fuse indication for rapid fault identification.
  • Patented true dual-element design provides superior time-delay and current-limiting protection.
  • Engineered to handle high inrush currents, minimizing nuisance fuse openings.
  • Ideal for space-constrained industrial and commercial applications.
  • Enhances safety and reduces downtime through clear blown fuse indication.

Specifications

Application
Lighting
Brand Name
Littelfuse
Series
POWR-PRO JTD_ID Indicator Class J
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.