Littelfuse FLSR07.5 - FLSR07.5 is a Class RK5 fuse with an ampere rating of 7.5 and cartridge-style construction.
Littelfuse

FLSR07.5

Alternate Item Number: FLSR07.5T

UPC: 079458170627


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Overview

The Littelfuse FLSR07.5 is a critical component for ensuring the safety and reliability of industrial electrical systems. As a Class RK5 fuse, it offers superior time-delay characteristics, providing robust protection against both short circuits and sustained overloads. This cartridge-style fuse, with its precise 7.5 ampere rating, is engineered by Littelfuse, a globally recognized leader in circuit protection technology, to meet the demanding requirements of modern industrial environments. Its design ensures dependable performance, safeguarding valuable equipment and preventing costly downtime. Engineered for versatility, the FLSR07.5 is an ideal choice for a wide array of applications. Its time-delay functionality makes it particularly well-suited for circuits with high inrush currents, such as those found in motor control centers, power distribution panels, and HVAC systems. The cartridge construction facilitates easy and secure installation into standard RK5 fuse holders, simplifying maintenance and replacement procedures for electrical technicians and engineers. This compatibility ensures seamless integration into existing infrastructure, minimizing disruption during upgrades or repairs. Littelfuse's commitment to quality is evident in the FLSR07.5. Each fuse is manufactured to stringent industry standards, guaranteeing consistent and reliable operation. The Class RK5 designation signifies a high interrupting rating, crucial for safely clearing fault currents and preventing catastrophic damage to electrical circuits and connected machinery. This fuse is designed to withstand the rigors of industrial settings, offering durability and long-term protection. Key benefits of the Littelfuse FLSR07.5 include: * **Superior Overcurrent Protection:** Effectively shields circuits from damaging overloads and short circuits. * **Time-Delay Performance:** Accommodates temporary inrush currents without nuisance tripping, while still responding rapidly to dangerous fault conditions. * **Industrial Durability:** Robust construction ensures reliable operation in harsh environments. * **Wide Application Range:** Suitable for motors, transformers, control circuits, and general power distribution. * **Ease of Installation:** Cartridge design ensures straightforward replacement in compatible fuse holders. * **Trusted Manufacturer:** Littelfuse is a pioneer and leader in circuit protection, offering peace of mind. When selecting circuit protection, choosing a fuse that balances sensitivity with the ability to handle normal operating conditions is paramount. The FLSR07.5 achieves this balance, offering precise protection without compromising operational efficiency. Its 7.5A rating is ideal for circuits requiring moderate current handling capabilities. For engineers and maintenance professionals who demand uncompromising safety and reliability, the Littelfuse FLSR07.5 Class RK5 fuse stands out as a premier solution for safeguarding industrial electrical assets. Its consistent performance and adherence to high manufacturing standards make it a cornerstone of effective electrical system design and maintenance.
  • Littelfuse FLSR07.5 Class RK5 time-delay fuse
  • 7.5 Ampere (7.5A) current rating
  • Cartridge-style construction for easy installation
  • Designed for industrial circuit protection applications
  • High interrupting rating for enhanced safety

Specifications

Application
General Purpose
Brand Name
Littelfuse
Current Rating
7.5 A
Series
Class RK5
Special Features
Time-Delay
Standard
Standard 248-12 UL Listed/CSA
Sub Brand
POWR-GARD FLSR Series
Type
Class RK5
Package Weight (Imperial)
0.184 L
Package Weight (Metric)
83.400 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.