Littelfuse KLKD01.5H - 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

KLKD01.5H

Alternate Item Number: KLKD01.5H

UPC: 079458964509


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Overview

The Littelfuse KLKD01.5H is a critical component for reliable DC circuit protection, specifically engineered for demanding applications such as solar combiner boxes and high-voltage DC systems. As a fast-acting Midget style fuse, it offers rapid response to overcurrent events, safeguarding sensitive equipment from damage. Its robust design is capable of interrupting DC fault currents up to an impressive 50,000 amperes, providing a high level of safety and operational continuity in environments where such fault levels are a concern. The 10 x 38 mm form factor of the KLKD series ensures compatibility with a wide range of standard fuse holders and panel designs. Littelfuse understands the diverse needs of industrial and renewable energy sectors, which is why the KLKD series is available in both standard and convenient board-mount configurations. This versatility allows for seamless integration into various electrical assemblies, from large-scale solar installations to specialized DC power systems. Compliance with stringent industry standards is paramount, and the KLKD series excels in this regard. It has been meticulously designed and tested to meet both the UL and IEC photovoltaic fuse standards. This dual certification is particularly important for solar applications, assuring installers and system designers that the fuse will perform as expected under the specific conditions found in photovoltaic arrays and their associated balance-of-system components. The adherence to these global standards underscores Littelfuse's commitment to quality and safety in the renewable energy market. Littelfuse offers an extensive selection of ampere ratings within the KLKD series. This broad range empowers engineers and technicians to precisely match the fuse's capacity to the specific current requirements of their circuits. Proper fuse selection is crucial for preventing nuisance tripping while ensuring adequate protection against short circuits and overloads. Whether protecting individual strings in a solar farm or critical DC power distribution circuits, the KLKD01.5H and its counterparts provide the necessary protection. Key features and benefits of the Littelfuse KLKD01.5H include: * **Fast-Acting Performance:** Ensures rapid interruption of fault currents, minimizing damage to connected equipment. * **High DC Voltage Rating:** Suitable for high-voltage DC circuits commonly found in solar and industrial applications. * **Exceptional Fault Current Handling:** Capable of interrupting up to 50,000 amperes DC, providing superior protection against severe fault conditions. * **Compact 10 x 38 mm Midget Style:** Designed for easy integration into standard fuse holders and compact electrical enclosures. * **Versatile Mounting Options:** Available in both standard and board-mount configurations to suit diverse installation needs. * **Photovoltaic Standard Compliance:** Meets UL and IEC photovoltaic fuse standards, ideal for solar combiner boxes and DC string protection. * **Wide Ampere Rating Range:** Littelfuse provides a comprehensive selection to precisely match application requirements. By choosing the Littelfuse KLKD01.5H, professionals are investing in a reliable, high-performance fuse solution backed by the reputation of a leading global manufacturer of circuit protection devices. Its advanced design and adherence to international standards make it an indispensable choice for safeguarding critical DC power systems.
  • Fast-acting Midget style fuse for rapid overcurrent protection.
  • High DC voltage rating suitable for demanding DC applications.
  • Interrupts DC fault currents up to 50,000 amperes.
  • Compact 10 x 38 mm size for easy integration.
  • Available in standard and board-mount configurations.
  • Meets UL and IEC photovoltaic fuse standards for solar applications.
  • Wide range of ampere ratings for specific application needs.

Specifications

Application
Power supplies
Brand Name
Littelfuse
Mounting Type
Standard and board-mount
Series
KLKD
Size
10 x 38 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.