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Littelfuse LFJ104501C - The LFJ1000 solar fuse block is specifically designed for the Littelfuse SPFJ 1000 Vdc Solar Fuse. It meets UL electrical characteristic requirements and is available in multiple amperages.

Littelfuse LFJ104501C The LFJ1000 solar fuse block is specifically designed for the Littelfuse SPFJ 1000 Vdc…

Alternate Item Number: LFJ104501C

UPC: 079458950106


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Contact for Pricing

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The Littelfuse LFJ1000 Series Solar Fuse Block (SKU: LFJ104501C) is engineered for robust protection in 1000 Vdc solar power systems. Designed to house the Littelfuse SPFJ 1000 Vdc Solar Fuse, this fuse block meets stringent UL electrical characteristic requirements, including UL 4248-18 Listing (File: E345481 Vol. 1), ensuring compliance and reliability for photovoltaic (PV) applications. The LFJ1000 series is available in multiple amperages (200A, 400A, 450A) to precisely match SPFJ fuse options, offering tailored protection for diverse solar array configurations. It provides multiple mounting and termination styles for installation flexibility: * **Clip-to-Box Lug:** Features box lug termination accepting a wide range of copper or aluminum cable sizes. * **Stud-to-Stud:** Offers convenient stud-mounted integration. * **Clip-to-Stud:** Combines fuse clip mounting with stud termination for efficient installation. Key features include a narrow width for space savings in electrical enclosures, a comprehensive amperage range, and termination flexibility with box lugs that accommodate various cable sizes and approvals for copper or aluminum lugs. Stud-mounted options simplify installation. Constructed with a UL94 V-0 rated thermoplastic base (130°C temp rating), tin-plated copper alloy fuse clips, aluminum box lugs, and zinc-plated steel studs/connectors, the LFJ1000 series ensures durability and environmental resistance. It is RoHS compliant. Designed for 1000 Vdc applications, the LFJ1000 series offers withstand ratings up to 20 kA. Torque specifications are provided for secure connections. This fuse block is a critical component for safeguarding solar inverters, combiners, and DC power distribution systems. For detailed specifications and CAD drawings, visit Littelfuse.com/LFJ1000.
  • Designed for Littelfuse SPFJ 1000 Vdc Solar Fuses
  • UL 4248-18 Listed (File: E345481 Vol. 1)
  • Available in 200A, 400A, and 450A amperages
  • Multiple termination options: Clip-to-Box Lug, Stud-to-Stud, Clip-to-Stud
  • UL94 V-0 rated thermoplastic base with 130°C temperature rating

Specifications

Brand Name
Littelfuse
Connection Type
Box Lug, Stud, Clip-to-Stud
Current Rating
200A/400A/450A
Material
Thermoplastic (UL94 V-0), Tin-plated copper alloy, Aluminum, Zinc-plated steel
Mounting Type
Clip-to-Box Lug, Stud-to-Stud, Clip-to-Stud
Series
LFJ1000
Special Features
Space-saving DIN Rail Indication
Standard
UL Listed CSA Certified
Sub Brand
LF Series Fuseblock
Type
Class J Fuseblock
Voltage Rating
1000 Vdc
The LFJ1000 solar fuse block is specifically designed for the Littelfuse SPFJ 1000 Vdc Solar Fuse. It meets UL electrical characteristic requirements and is available in multiple amperages.

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Frequently Asked Questions

What types of fuses does Littelfuse offer for industrial applications?

Littelfuse offers UL Class fuses, high-speed fuses, medium voltage fuses, 10 x 38 mm fuses, and solar fuses for industrial applications.

What are Littelfuse high-speed fuses used for?

High-speed fuses protect critical power semiconductor devices against short circuits in power conversion applications like inverters and variable-speed drives.

What is the voltage range for Littelfuse solar fuses?

Littelfuse offers solar fuses and holders up to 1500 Vdc for both high-current and low-current applications.

What protection do feeder protection relays offer?

Feeder protection relays protect circuits from overcurrent, ground faults, phase loss, overload, and other detrimental conditions.

What is the Industrial Shock-Block® GFCI designed for?

It is designed for people protection in industrial facilities and meets UL Standard 943C Class C and Class D.

What do Littelfuse voltage monitors protect against?

Voltage monitors provide protection against both supply line and load side faults when the motor is running.

How do arc-flash protection relays enhance safety?

These relays detect developing arc-flash incidents and send a trip signal to interrupt power before significant damage occurs.

What types of protection do Littelfuse motor protection relays offer?

They offer voltage monitors, current monitors, and Bluetooth-enhanced overload relays for low and medium voltage applications.

What is the purpose of Littelfuse Techline support?

Techline experts answer questions about product cross-references, general technical information, engineering drawings, and application assistance.

What applications are 10 x 38 mm fuses suitable for?

These fuses provide compact supplemental protection for a wide variety of applications, available in time-delay or fast-acting versions.

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.