Littelfuse KLKR001S - KLKR series Class CC fuses are fast-acting fuses intended for general-purpose branch circuit protection. Their compact size, fast-acting overload response, and their highly current limiting design make them ideal for use in OEM equipment and control panels because Solid-state devices such as SCRs and other electronic equipment generally require fast-acting protection.
Littelfuse

KLKR001S

Alternate Item Number: KLKR001.TS

UPC: 079458189759

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Minimum Qty: 10

Multiplier: 10

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Overview

The Littelfuse KLKR001S, part of the robust KLKR series, represents a critical component for safeguarding modern industrial electrical systems. Engineered as a Class CC fast-acting fuse, this product is specifically designed for general-purpose branch circuit protection, offering unparalleled reliability in demanding environments. Its compact dimensions are a significant advantage in OEM equipment and control panels where space optimization is paramount, allowing for efficient integration without compromising on protective capabilities. The core strength of the KLKR001S lies in its exceptional fast-acting overload response. This characteristic is vital for protecting sensitive solid-state devices, including SCRs (Silicon Controlled Rectifiers), and other sophisticated electronic equipment that are susceptible to rapid damage from transient overloads or short circuits. The fuse's highly current-limiting design ensures that fault currents are interrupted with extreme speed, thereby minimizing the potential for catastrophic equipment failure and costly downtime. This rapid interruption capability is a cornerstone of effective electrical system protection, preserving the integrity of downstream components and ensuring operational continuity. Industries relying on precise and responsive protection will find the KLKR001S an indispensable asset. Its application extends across a wide spectrum of OEM equipment, from complex machinery to intricate control systems, and is a standard choice for building out robust control panels. The Littelfuse KLKR series is recognized for its commitment to quality and performance, making the KLKR001S a trusted solution for professionals who demand dependable protection. The fuse's design prioritizes both safety and operational efficiency, providing peace of mind that critical electronic infrastructure is shielded against electrical disturbances. Key benefits of integrating the Littelfuse KLKR001S into your systems include: * **Superior Overload Response:** Fast-acting nature minimizes damage to sensitive electronics. * **High Current Limitation:** Effectively reduces peak fault currents, enhancing safety. * **Compact Form Factor:** Ideal for space-constrained OEM equipment and control panels. * **Broad Application Suitability:** Excellent for general-purpose branch circuit protection. * **Enhanced System Reliability:** Protects valuable downstream components, reducing maintenance and replacement costs. When selecting fuses for critical applications, the Littelfuse KLKR001S stands out as a premium choice. Its combination of speed, current-limiting prowess, and compact design makes it a go-to solution for protecting modern electronic loads. Trust Littelfuse, a leader in circuit protection, to provide the quality and performance your industrial applications require. The KLKR001S is more than just a fuse; it's an integral part of a resilient and reliable electrical infrastructure, ensuring the longevity and optimal performance of your valuable equipment.
  • Class CC fast-acting fuse for general-purpose branch circuit protection
  • Compact size ideal for OEM equipment and control panels
  • Fast-acting overload response protects sensitive electronic devices
  • Highly current-limiting design minimizes fault current damage
  • Ensures reliable protection for SCRs and other solid-state components

Specifications

Application
General Purpose
Brand Name
Littelfuse
Material
Composite
Material
Ceramic/Metal
Mounting Type
Panel Mount/Holder
Series
KLKR
Size
Compact
Size
Compact (Class CC)
Special Features
Fast-Acting
Standard
248-4 UL Listed/CSA
Sub Brand
KLKR Series
Type
Class CC
Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount

GPM-SRR90

Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount
Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20

C331156

Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20
Fuse Block 1500VAC 1500VDC 400A 1-Pole Stud M8

1SCM8

Fuse Block 1500VAC 1500VDC 400A 1-Pole Stud M8
Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20

E1062696

Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20
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.
9F61 Size B Clips 1.6in

9F61BWW460

9F61 Size B Clips 1.6in

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.