Littelfuse FLSR008 - FLSR008 is a Class RK5 fuse with an ampere rating of 8 and cartridge-style construction.
Littelfuse

FLSR008

Alternate Item Number: FLSR008.T

UPC: 079458170634


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BrochureTechnical BulletinTechnical DrawingSpecification Sheet

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Minimum Qty: 10

Multiplier: 10

*Contact for lower quantities*

Overview

The **Littelfuse FLSR008** is a high-performance **Class RK5 cartridge-style fuse** engineered for **industrial-grade circuit protection** in critical applications. With an **8A current rating**, this fuse delivers precise overcurrent interruption to safeguard sensitive equipment from damage caused by short circuits, overloads, or transient faults. Designed for **reliability and durability**, the FLSR008 is a trusted solution for professionals who demand consistent performance in demanding environments. Class RK5 fuses are a preferred choice in industrial settings due to their **superior interrupting rating** and **fast-acting response**, making them ideal for protecting transformers, motors, power supplies, and control panels. The **cartridge-style construction** ensures easy installation and compatibility with standard fuse blocks, while the **compact design** allows for space-efficient integration into tight enclosures. Whether deployed in manufacturing facilities, data centers, renewable energy systems, or commercial buildings, the FLSR008 provides **dependable fault isolation** to minimize downtime and reduce maintenance costs. **Key Features of the Littelfuse FLSR008:** - **8A Current Rating**: Precisely rated for low-to-moderate current applications where sensitive equipment requires protection. - **Class RK5 Compliance**: Meets stringent **NEMA standards** for high interrupting capacity (typically 200kA), ensuring robust performance in high-fault scenarios. - **Cartridge-Style Design**: Standardized dimensions for universal compatibility with RK5 fuse holders and panels. - **Fast-Acting Response**: Rapid response to overcurrent conditions to prevent thermal damage and arc faults. - **Industrial-Grade Durability**: Constructed with high-quality materials to withstand harsh environments, including vibration, temperature fluctuations, and electrical stress. **Typical Applications:** The FLSR008 is widely used in **industrial control panels**, **motor starters**, **power distribution units**, and **electrical enclosures** where reliable overcurrent protection is critical. Common use cases include: - **Motor protection** in HVAC systems, conveyors, and pumps. - **Transformer and power supply safeguarding** in substations and renewable energy inverters. - **Control circuit protection** in PLCs, relays, and automation systems. - **Lighting and LED driver protection** in commercial and industrial lighting installations. **Why Choose Littelfuse?** Littelfuse is a **global leader in circuit protection**, with over a century of innovation in electrical safety. The company’s **RK5 fuses** are trusted by engineers and technicians worldwide for their **consistent performance, long service life, and adherence to international standards**. By selecting the FLSR008, professionals gain access to: - **Proven reliability** backed by rigorous testing and certification. - **Global availability** through Littelfuse’s extensive distribution network. - **Technical support** from industry experts to assist with selection, installation, and troubleshooting. - **Compliance with UL, CSA, and IEC standards**, ensuring compatibility with global electrical systems. **Installation and Maintenance Tips:** Proper installation is essential for optimal performance. The FLSR008 should be mounted in a **compatible RK5 fuse holder** with the correct voltage and current ratings. Always ensure the fuse is **de-energized** before replacement to avoid arcing or injury. Regular inspections for signs of **corrosion, overheating, or physical damage** can extend the fuse’s lifespan and prevent unexpected failures. For applications with frequent cycling or high inrush currents, consider using **time-delay fuses** to avoid nuisance tripping. Invest in the **Littelfuse FLSR008** for a **cost-effective, high-performance solution** that enhances the safety and longevity of your electrical systems. Whether you’re protecting a single machine or an entire facility, this fuse delivers the **precision, durability, and peace of mind** that industrial professionals demand.
  • 8A current rating for precise overcurrent protection
  • Class RK5 compliance with 200kA interrupting rating
  • Cartridge-style design for universal compatibility
  • Fast-acting response to prevent equipment damage
  • Industrial-grade durability for harsh environments

Specifications

Application
General Purpose
Brand Name
Littelfuse
Current Rating
8 A
Nema Rating
Class RK5
Series
FLSR
Size
Cartridge-style
Special Features
Time-Delay
Standard
Standard 248-12 UL Listed/CSA
Sub Brand
POWR-GARD FLSR Series
Type
Class RK5
Package Weight (Imperial)
0.179 L
Package Weight (Metric)
81.200 g
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9F61 Size B Clips 1.6in

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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.

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.