Littelfuse LSCR103 - MODULAR STYLE SEMICONDUCTOR FUSE BLOCKS (PRICE PER EACH, NOT PAIR)
Littelfuse

LSCR103

UPC: 079458859669


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Specification Sheet

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Minimum Qty: 2

Multiplier: 2

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Overview

The Littelfuse LSCR103 is a modular, stud-type semiconductor fuse block designed for high-speed and UL power fuses. This USA-made unit is engineered for reliable circuit protection in demanding industrial applications, accommodating fuses up to 1200A at 1000V AC/DC. It features a robust thermoplastic insulator with a UL 94 V-0 flammability rating and zinc-plated steel terminals for secure connections. The modular design simplifies panel board mounting and reduces inventory requirements, while the block is supplied with a nut and belleville washer for convenient installation. With a high withstand rating of 200 kA, the LSCR103 ensures system integrity against overcurrent and short-circuit events. Approvals include UL Recognized (E14721), cURus Recognized (E14721), and CSA Certified (73160). Ideal for power distribution, motor control, and industrial automation systems requiring dependable semiconductor protection. Constructed for high-current applications, this fuse block delivers consistent performance in harsh environments.
  • Accommodates fuses up to 1200A at 1000V AC/DC
  • UL 94 V-0 thermoplastic insulator with UL Recognized (E14721), cURus Recognized (E14721), and CSA Certified (73160) approvals
  • Zinc-plated steel terminals with nut and belleville washer for secure connections
  • Modular design simplifies panel board mounting and reduces inventory requirements
  • 200 kA withstand rating for protection against overcurrent and short-circuit events
  • Made in the USA
  • UL Recognized, cURus Recognized, CSA Certified

Specifications

Connection Type
Stud
Connection Type
Stud-type
Current Rating
1200A
Material
Thermoplastic
Material
Thermoplastic, Zinc-plated steel
Mounting Type
Panel Board
Mounting Type
Modular, Panel board
Series
LSCR
Voltage Rating
1000V AC/DC
Littelfuse LSCR Series is a comprehensive line of modular fuse blocks, designed to accommodate a wide range of High-Speed and UL Power Fuses. These LSCR Series blocks have modular stud type design that enables easy mounting in panel boards. LSCR Series blocks are CE Certified and RoHS Compliant. Features and Benefits: Modular design reduces inventory requirements; Sold in pairs for convenience; Supplied with nut and belleville washer; Constructed of molded phenolic (with plated steel studs) provide greater heat dissapation.

LSCR102

Littelfuse LSCR Series is a comprehensive line of modular fuse blocks, designed to accommodate a wide range of High-Speed and UL Power Fuses. These LSCR Series blocks have modular stud type design that enables easy mounting in panel boards. LSCR Series blocks are CE Certified and RoHS Compliant. Features and Benefits: Modular design reduces inventory requirements; Sold in pairs for convenience; Supplied with nut and belleville washer; Constructed of molded phenolic (with plated steel studs) provide greater heat dissapation.
MODULAR STYLE SEMICONDUCTOR FUSE BLOCKS (PRICE PER EACH, NOT PAIR)

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MODULAR STYLE SEMICONDUCTOR FUSE BLOCKS (PRICE PER EACH, NOT PAIR)
Littelfuse LSCR Series is a comprehensive line of modular fuse blocks, designed to accommodate a wide range of High-Speed and UL Power Fuses. These LSCR Series blocks have modular stud type design that enables easy mounting in panel boards. LSCR Series blocks are CE Certified and RoHS Compliant.

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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.