Littelfuse KLK010 - KLK010 is a Midget fuse with an ampere rating of 10.
Littelfuse

KLK010

Alternate Item Number: 0KLK010.T

UPC: 079458250657

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BrochureTechnical BulletinTechnical DrawingSpecification Sheet

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Minimum Qty: 10

Multiplier: 10

*Contact for lower quantities*

Overview

The **Littelfuse KLK010 Midget Fuse** is a high-performance, compact circuit protection device engineered to safeguard industrial electrical systems against overcurrent conditions. With a precise 10-ampere rating, this fuse delivers reliable interruption of fault currents while maintaining operational integrity in demanding environments. Designed for OEMs, panel builders, and maintenance professionals, the KLK010 combines robust construction with Littelfuse’s legacy of quality, ensuring consistent performance in critical applications where downtime is not an option. **Key Features and Technical Advantages** The KLK010 is part of Littelfuse’s renowned midget fuse series, a category trusted by engineers worldwide for applications requiring compact yet high-reliability protection. Its **10A rating** makes it ideal for protecting control circuits, instrumentation, and low-power industrial equipment, including PLCs, sensors, and auxiliary power supplies. The fuse’s **fast-acting response** ensures rapid fault isolation, minimizing damage to sensitive components and reducing the risk of catastrophic system failures. Unlike generic fuses, Littelfuse’s proprietary design incorporates **high-purity materials** and **precision manufacturing** to deliver consistent breaking capacity and low resistance, which translates to stable voltage drop and minimal heat generation during normal operation. **Industry Applications and Use Cases** Industrial professionals across sectors such as **manufacturing, automation, energy, and transportation** rely on the KLK010 for circuit protection in a variety of systems. Common applications include: - **Control panels and motor starters**: Protecting control circuits from short circuits or overloads in machinery. - **Power supplies and converters**: Safeguarding sensitive electronics in variable frequency drives (VFDs) and uninterruptible power supplies (UPS). - **Instrumentation and monitoring systems**: Ensuring reliability in PLCs, HMIs, and data acquisition systems. - **Lighting and LED systems**: Providing overcurrent protection in industrial lighting installations. - **Telecommunications and networking equipment**: Shielding routers, switches, and other critical infrastructure from transient faults. The KLK010’s **compact 1/4-inch x 1-1/4-inch (6.3 x 32 mm) body** allows for easy integration into tight spaces, making it a preferred choice for space-constrained designs. Its **blade-type terminals** ensure secure contact in fuse holders, reducing the risk of poor connections that can lead to arcing or intermittent failures. Additionally, the fuse is **UL 248-14 listed**, meeting stringent safety and performance standards for industrial use, which simplifies compliance for engineers and procurement teams. **Why Choose Littelfuse for Midget Fuses?** Littelfuse has been a global leader in circuit protection for over a century, with a reputation for innovation and reliability. The company’s midget fuse portfolio, including the KLK010, is backed by decades of research and real-world validation, ensuring that each fuse meets the demands of modern industrial applications. Professionals trust Littelfuse for: - **Consistent performance**: Tight manufacturing tolerances and rigorous testing guarantee predictable operation across temperature ranges and load conditions. - **Global availability**: With a vast distribution network, Littelfuse ensures quick access to replacement fuses, reducing maintenance downtime. - **Technical support**: Access to application engineers and comprehensive documentation, including datasheets and installation guides, supports optimal system design. - **Sustainability**: Littelfuse’s commitment to eco-friendly manufacturing processes aligns with the growing demand for responsible industrial solutions. **Installation and Maintenance Best Practices** To maximize the lifespan and effectiveness of the KLK010, follow these guidelines: - **Proper sizing**: Always match the fuse rating (10A) to the circuit’s maximum continuous current to avoid nuisance tripping or inadequate protection. - **Correct holder selection**: Use Littelfuse-compatible fuse holders to ensure secure contact and prevent overheating. - **Regular inspection**: Check for signs of discoloration, corrosion, or physical damage, which may indicate poor contact or overloading. - **Replacement protocol**: Replace fuses with identical Littelfuse models to maintain system integrity and compliance with safety standards. The **Littelfuse KLK010 Midget Fuse** is more than just a protective component—it’s a critical link in the chain of industrial reliability. Whether you’re designing a new system or maintaining an existing one, this fuse delivers the performance, durability, and peace of mind that professionals demand. Trust Littelfuse to protect what matters most in your operations.
  • 10A fast-acting midget fuse for industrial circuit protection
  • Compact 1/4" x 1-1/4" (6.3 x 32 mm) design for space-constrained applications
  • UL 248-14 listed for compliance with industrial safety standards
  • High-purity materials ensure low resistance and minimal heat generation
  • Trusted by OEMs, panel builders, and maintenance professionals worldwide

Specifications

Application
control circuits
Brand Name
Littelfuse
Connection Type
Blade-type terminals
Current Rating
10 A
Interrupt Rating
100;50 kA;kA
Material
High-purity materials
Series
Midget
Series
KLK
Size
6.3 x 32 mm
Special Features
RoHS
Sub Brand
KLK Series
Type
Fast-Acting
Voltage Rating
600 VAC
Package Weight (Imperial)
0.016 L
Package Weight (Metric)
7.200 g
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.