Littelfuse KLKD008H - The KLKD fuse series is fast-acting with a high DC voltage rating. This family of Midget style fuses (10 x 38 mm) is used in solar combiner boxes and in circuits with DC fault currents up to 50,000 amperes. KLKD fuses are available in standard and board-mount configurations. In addition, the KLKD series has been designed to meet both the UL and IEC photovoltaic fuse standards. Littelfuse offers a wide range of ampere ratings to match specific requirements in a variety of applications.
Littelfuse

KLKD008H

Alternate Item Number: KLKD008.H

UPC: 079458964592

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Overview

The Littelfuse KLKD008H is a high-performance, fast-acting Midget style fuse engineered for critical DC applications, particularly within the burgeoning solar energy sector. This 10x38mm fuse is designed to provide robust protection in solar combiner boxes and other DC circuits that experience significant fault currents, capable of interrupting up to 50,000 amperes. Its fast-acting characteristic ensures rapid response to overcurrent events, minimizing damage to sensitive equipment and preventing cascading failures. The KLKD series stands out for its high DC voltage rating, a crucial specification for modern solar installations where DC voltages can be substantial. Littelfuse, a globally recognized leader in circuit protection, has meticulously designed the KLKD008H to meet stringent industry standards, including both UL and IEC photovoltaic fuse requirements. This adherence to international safety and performance benchmarks provides installers and system designers with the confidence that their critical infrastructure is protected by a reliable and compliant component. Available in a variety of ampere ratings, the KLKD008H can be precisely selected to match the specific protection needs of diverse solar arrays and industrial DC systems. This granular control over protection levels is essential for optimizing system efficiency and safety. Furthermore, the availability of both standard and board-mount configurations offers flexibility in installation, catering to different design architectures and space constraints within combiner boxes or other electrical enclosures. Key benefits and features of the Littelfuse KLKD008H include: * **Fast-Acting Protection:** Rapidly interrupts overcurrents to safeguard equipment. * **High DC Voltage Rating:** Suitable for high-voltage DC circuits common in solar power systems. * **Exceptional Fault Current Handling:** Rated for up to 50,000 amperes, providing robust protection against severe faults. * **Industry Standard Compliance:** Meets UL and IEC photovoltaic fuse standards for reliable performance and safety. * **Versatile Configurations:** Available in standard and board-mount options for flexible integration. * **Wide Ampere Range:** Littelfuse offers a comprehensive selection of ampere ratings to meet specific application requirements. When selecting fuses for solar combiner boxes, engineers must consider the unique challenges posed by DC fault currents, which can behave differently than AC faults. The KLKD008H is specifically developed to address these challenges, offering reliable interruption and long-term operational integrity. Its Midget form factor (10x38mm) is a widely adopted standard in many industrial fuse applications, ensuring compatibility with existing fuse holders and panels. The commitment of Littelfuse to quality and innovation is evident in the KLKD series, providing peace of mind for professionals in the renewable energy and industrial sectors who demand uncompromising circuit protection.
  • Fast-acting Midget style fuse (10x38mm) for rapid overcurrent protection.
  • High DC voltage rating suitable for demanding solar and industrial DC circuits.
  • Exceptional fault current interruption capability up to 50,000 amperes.
  • Designed to meet UL and IEC photovoltaic fuse standards for reliable safety.
  • Available in standard and board-mount configurations with a wide range of ampere ratings.

Specifications

Application
Power supplies
Brand Name
Littelfuse
Current Rating
0.008 A
Mounting Type
Standard and board-mount
Mounting Type
Midget style (standard and board-mount)
Series
KLKD
Size
10x38 mm
Special Features
Fast Acting Fuses
Standard
UL Listed/CSA Certified
Sub Brand
KLKD Series
Type
10x38 Fuses

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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.