Littelfuse SPF004HXR - 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

SPF004HXR

Alternate Item Number: 0SPF004.HXR

UPC: 079458169188

Documents & Media
BrochureTechnical BulletinTechnical DrawingSpecification SheetVideo Clip

Contact for Pricing

Minimum Qty: 100

Multiplier: 100

*Contact for lower quantities*

Overview

The Littelfuse SPF004HXR Solar Protection Fuse (SKU: SPF004HXR) is a critical component engineered for the robust protection of photovoltaic (PV) systems. As solar energy installations continue to grow in scale and complexity, the demands placed on circuit protection devices have escalated significantly. Traditional protection solutions are often insufficient to handle the unique challenges presented by modern PV arrays, particularly concerning high system voltages and the potential for reverse overcurrent conditions. The SPF series, exemplified by the SPF004HXR, has been meticulously designed to address these specific needs. This Midget-style fuse, measuring 10 x 38 mm, offers a compact yet powerful solution for safeguarding both PV modules and the associated conductor infrastructure. Its primary function is to reliably interrupt faulted circuits, thereby preventing damage and ensuring the operational integrity of the solar energy system. The increasing voltage requirements in larger PV systems, aimed at minimizing power losses over long conductor runs, necessitate specialized protection. The SPF004HXR meets this requirement head-on, being UL Listed to safely interrupt circuits at these demanding voltage levels, a crucial distinction from standard circuit protection devices. Littelfuse, a globally recognized leader in circuit protection, brings its extensive expertise to the SPF series. The SPF004HXR is available in a range of ampere ratings, allowing for precise matching to the specific requirements of diverse PV applications. This granular selection capability ensures optimal performance and safety, whether protecting a small residential array or a large-scale commercial solar farm. By effectively mitigating the risks associated with reverse overcurrents, the SPF004HXR contributes to the longevity and reliability of solar installations, a key factor in maximizing energy production and return on investment. Key benefits and features of the Littelfuse SPF004HXR Solar Protection Fuse include: * **Specialized PV System Protection:** Designed exclusively for the unique demands of photovoltaic installations. * **High Voltage Interruption Capability:** UL Listed to safely interrupt faulted circuits at elevated system voltages. * **Reverse Overcurrent Protection:** Effectively safeguards PV modules and conductors from damaging reverse current. * **Compact 10x38mm Midget Style:** Offers a space-efficient solution for integration into PV system enclosures. * **Multiple Ampere Ratings:** Available in various current ratings to precisely match application needs. * **Enhanced System Reliability:** Contributes to the overall dependability and longevity of solar energy systems. Choosing the right protection for a PV system is paramount. The Littelfuse SPF004HXR provides peace of mind, knowing that critical components are shielded by a product engineered for the specific challenges of solar energy. Its adherence to stringent UL standards underscores its commitment to safety and performance in this vital sector. Professionals in the solar industry rely on Littelfuse for dependable circuit protection solutions that meet evolving technological requirements and ensure the sustained performance of renewable energy infrastructure.
  • Specifically designed for photovoltaic (PV) system protection
  • 10x38 mm Midget style fuse for compact integration
  • UL Listed for safe interruption of high-voltage faulted circuits
  • Protects PV modules and conductors from reverse overcurrent conditions
  • Available in multiple ampere ratings to match specific application requirements

Specifications

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

Similar Products

SPF004H

Size: 10 x 38 mm

Series: SPF

SPF001HXR

Size: 10 x 38 mm

Series: SPF Solar Protection Fuse

Series: SPF

SPF002HXR

Size: 10 x 38 mm

Series: SPF

SPF003HXR

Current Rating: 3 A

Size: 10 x 38 mm

Series: SPF Solar Protection Fuse

SPF005HXR

Voltage Rating: High voltage (PV system levels)

Size: 10 x 38 mm

Series: SPF

SPF006HXR

Size: 10 x 38 mm

Series: SPF

You May Also Be Interested In

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.

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.

SPF001HXR

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.

SPF003HXR

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.

SPF010HXR

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.

SPF005HXR

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.