Littelfuse LFR25100-3C - 250V CLASS R BLOCK 100A 3 POLE
Littelfuse

LFR25100-3C

UPC: 079458941241


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Specification Sheet

Contact for Pricing

Overview

The Littelfuse LFR25100-3C is a high-performance 250V Class R fuse block designed for robust industrial power distribution and protection. Engineered by Littelfuse, a globally recognized leader in circuit protection, this 3-pole block is rated for 100 Amperes, making it suitable for a wide range of demanding applications where reliable electrical safety is paramount. This Class R fuse block is specifically designed to house Class R fuses, offering superior interrupting capacity and protection against overcurrents and short circuits. Its 3-pole configuration allows for simultaneous protection of three individual circuits, simplifying installation and ensuring comprehensive safety in three-phase power systems commonly found in industrial settings. The 250V voltage rating further defines its application scope within standard industrial power distribution networks. Key features of the Littelfuse LFR25100-3C include: * **Robust Construction:** Built with high-quality materials to withstand harsh industrial environments, ensuring longevity and consistent performance. * **High Interrupting Capacity:** Designed to safely interrupt fault currents, protecting downstream equipment from catastrophic damage. * **3-Pole Configuration:** Ideal for three-phase power systems, offering efficient and consolidated protection. * **250V AC Rating:** Suitable for a broad spectrum of industrial voltage requirements. * **100A Current Rating:** Provides ample capacity for high-power industrial machinery and distribution panels. The LFR25100-3C is an essential component for ensuring the operational integrity and safety of industrial machinery, power systems, motor control centers, and electrical distribution panels. Its reliable performance minimizes downtime and reduces the risk of electrical hazards, contributing to a safer working environment. Engineers and technicians rely on Littelfuse products for their proven quality and adherence to stringent industry standards. This fuse block exemplifies Littelfuse's commitment to delivering dependable circuit protection solutions that meet the rigorous demands of modern industrial operations. Its straightforward design facilitates easy fuse installation and replacement, further enhancing its practicality in busy industrial facilities. Choosing the LFR25100-3C means investing in a durable, high-performance component that offers peace of mind through superior electrical protection.
  • Littelfuse LFR25100-3C 250V Class R Fuse Block
  • 100 Ampere (100A) current rating
  • 3-Pole configuration for three-phase applications
  • Designed for Class R fuses to ensure high interrupting capacity
  • Robust construction for demanding industrial environments

Specifications

Current Rating
100 A
Poles
3
Voltage Rating
250 V
Voltage Rating
250 VAC
250V CLASS H BLOCK 100A 3 POLE

LFH25100-3C

250V CLASS H BLOCK 100A 3 POLE
Fuse Block 250VAC 250VDC Class R 100A 3-Pole Box with Reinforced Clip

21038R

Fuse Block 250VAC 250VDC Class R 100A 3-Pole Box with Reinforced Clip
DR4/8 SF DIN2

1SNA110368R1200

DR4/8 SF DIN2

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.