Littelfuse SPF002HXR - The SPF Solar Protection Fuse series has been specifically designed for the protection of photovoltaic (PV) systems. This family of Midget style fuses (10 x 38 mm) can safely protect PV modules and conductors from reverseovercurrent conditions. As PV systems have grown in size, so have the corresponding voltage requirements. This increase in system voltage has typically been intended to minimize power loss associated with long conductor runs. Standard circuit protection devices are not designed to completely protect photovoltaic panels. However, the SPF series is UL Listed to safely interrupt faulted circuits up to this demanding voltage level. Littelfuse offers multiple ampere ratings to match specific requirements in a variety of applications.
Littelfuse

SPF002HXR

Alternate Item Number: 0SPF002.HXR

UPC: 079458169126

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Overview

The Littelfuse SPF002HXR Solar Protection Fuse (SKU: SPF002HXR) is a critical component engineered for the demanding environment of photovoltaic (PV) systems. As solar energy installations continue to grow in scale and complexity, the need for specialized and reliable circuit protection becomes paramount. Standard overcurrent protection devices are often insufficient to meet the unique voltage and current requirements of modern PV arrays, particularly concerning the protection of sensitive PV modules and associated conductors from potentially damaging reverse overcurrent conditions. The SPF series, including the SPF002HXR, addresses this challenge directly by offering robust protection specifically designed for solar applications. This Midget-style fuse, measuring 10 x 38 mm, is built to the rigorous standards expected from Littelfuse, a globally recognized leader in circuit protection. Its primary function is to ensure the safety and longevity of your photovoltaic system by interrupting fault currents, thereby preventing damage to expensive PV modules and minimizing downtime. The increasing system voltages in larger PV installations, implemented to reduce power losses over long conductor runs, necessitate fuses with higher voltage interruption capabilities. The SPF002HXR is UL Listed to safely interrupt faulted circuits at these demanding voltage levels, providing peace of mind and ensuring compliance with industry safety standards. Key benefits and features of the Littelfuse SPF002HXR Solar Protection Fuse include: * **Specialized PV System Protection:** Designed from the ground up for photovoltaic applications, offering tailored protection for solar modules and conductors. * **Reverse Overcurrent Safeguard:** Effectively protects against reverse current flow, a common concern in series-connected PV strings. * **High Voltage Interruption:** UL Listed for high-voltage applications, meeting the needs of modern, large-scale solar installations. * **Midget Style (10 x 38 mm):** A compact and widely compatible form factor for easy integration into existing or new PV system designs. * **Multiple Ampere Ratings:** Available in a range of ampere ratings to precisely match the specific requirements of diverse PV system configurations and conductor sizes. * **Enhanced System Safety and Reliability:** Contributes to the overall safety, reliability, and operational efficiency of photovoltaic systems. Professionals in the solar industry rely on Littelfuse for their unwavering commitment to quality and innovation in circuit protection. The SPF002HXR is a testament to this, providing a dependable solution for safeguarding investments in renewable energy infrastructure. Whether for utility-scale solar farms, commercial rooftop installations, or residential solar arrays, the SPF002HXR offers the specialized protection necessary to ensure optimal performance and safety. Its robust construction and adherence to stringent UL standards make it an indispensable component for any PV system designer or installer prioritizing long-term system integrity and operational excellence.
  • Specifically designed for photovoltaic (PV) system protection.
  • Safeguards PV modules and conductors from reverse overcurrent conditions.
  • UL Listed for high-voltage interruption capabilities in solar applications.
  • Compact 10 x 38 mm Midget style fuse for broad compatibility.
  • Available in multiple ampere ratings to suit diverse PV system needs.

Specifications

Application
1000 VDC PV
Brand Name
Littelfuse
Series
SPF
Size
10 x 38 mm
Special Features
Solar
Standard
UL 2579 IEC 60269-6
Sub Brand
SPF Series
Type
Full Range

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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.