Littelfuse LFR60100-3CID - The new Littelfuse Class H and R blocks offer many advantages over previous generations that are noted in the features and benefits section. Class H and Class R fuse blocks are dimensionally the same, but Class R blocks incorporate a rejection feature, which only allows Class R fuses to be inserted.
Littelfuse

LFR60100-3CID

Alternate Item Number: LFR601003CID

UPC: 079458181456

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Overview

The Littelfuse LFR60100-3CID represents a significant advancement in fuse protection technology, offering both Class H and Class R fuse block solutions designed for superior safety and operational integrity in demanding industrial environments. Manufactured by Littelfuse, a globally recognized leader in circuit protection, these fuse blocks are engineered to meet the rigorous requirements of modern electrical systems. One of the most critical features of the LFR60100-3CID is its compatibility with both Class H and Class R fuses, while offering distinct advantages for each. While dimensionally identical to their predecessors, the Class R variants incorporate an essential rejection feature. This intelligent design ensures that only Class R fuses can be inserted into the block, effectively preventing the inadvertent installation of lower-rated or incompatible fuses. This rejection mechanism is paramount for maintaining the integrity of the protection scheme, safeguarding equipment from overcurrents and short circuits that could otherwise lead to catastrophic failures, costly downtime, and potential safety hazards. These fuse blocks are ideal for a wide array of industrial applications, including: * **Motor Control Centers:** Providing reliable overcurrent protection for electric motors, crucial for manufacturing and automation processes. * **Industrial Machinery:** Ensuring the safe operation of heavy-duty equipment in sectors like automotive, food processing, and material handling. * **Power Distribution Systems:** Protecting critical circuits within manufacturing plants and commercial facilities. * **Renewable Energy Infrastructure:** Safeguarding components in solar and wind power installations. The Littelfuse LFR60100-3CID series is built with the robust quality and reliability that professionals expect from Littelfuse. The precise engineering of the rejection feature in Class R blocks not only enhances safety but also simplifies inventory management and installation by standardizing fuse types where appropriate. This attention to detail minimizes the risk of human error, a common cause of electrical system failures. By choosing Littelfuse, end-users benefit from decades of expertise in developing cutting-edge circuit protection solutions that are both effective and dependable. The LFR60100-3CID is a testament to this commitment, providing peace of mind and robust protection for critical electrical infrastructure.
  • Designed for both Class H and Class R fuses
  • Class R blocks feature a rejection mechanism to prevent incorrect fuse insertion
  • Dimensionally identical for easy upgrade from previous generations
  • Ensures proper fuse coordination and enhanced safety
  • Manufactured by Littelfuse, a trusted leader in circuit protection

Specifications

Brand Name
Littelfuse
Connection Type
Fuse Block
Material
Molded Plastic
Mounting Type
Panel Mount
Series
LFR60100-3CID
Size
Dimensionally same as predecessors
Special Features
Universal mounting holes
Standard
UL Listed and CSA Certified RoHS
Sub Brand
LFR Series
Type
Fuse Block
Fuse Block 600VAC 600VDC 30A 1/4in Quick Connect / Solder 1/4 Turn Bayonet Knob Panel Mount

GPM-B

Fuse Block 600VAC 600VDC 30A 1/4in Quick Connect / Solder 1/4 Turn Bayonet Knob Panel Mount
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.

LSCR002

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.

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.