Littelfuse SPFI006 - 1000VDC INLINE MIDGET SOLAR FUSE
Littelfuse

SPFI006

UPC: 079458808551


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Overview

The Littelfuse SPFI006 1000VDC Inline Midget Solar Fuse is a high-performance overcurrent protection solution engineered specifically for solar power systems. Designed to safeguard critical components such as solar panels, inverters, and combiner boxes, this fuse delivers robust protection against excessive current flow that could otherwise lead to system damage, fire hazards, or costly downtime. Built to meet the rigorous demands of renewable energy applications, the SPFI006 combines durability, precision, and reliability in a compact form factor that simplifies installation in both residential and commercial solar installations. As part of Littelfuse’s industry-leading portfolio of solar protection solutions, the SPFI006 is manufactured to stringent quality standards, ensuring consistent performance even in harsh environmental conditions. Its 1000VDC rating makes it ideal for high-voltage solar arrays, where reliable fault interruption is essential to maintain system integrity. The inline midget design allows for seamless integration into solar arrays, inverters, and battery storage systems, providing a space-efficient solution without compromising on protection capabilities. Professionals in the solar industry rely on Littelfuse for its proven track record in electrical protection, and the SPFI006 is no exception. This fuse is particularly well-suited for applications such as: - **Solar farms and utility-scale installations**, where high-voltage DC systems require reliable fault isolation. - **Residential and commercial rooftop solar systems**, ensuring compliance with safety standards and protecting against overcurrent events. - **Off-grid and hybrid solar systems**, where dependable performance is critical for maintaining power supply. - **Solar-plus-storage systems**, where batteries and inverters are safeguarded from fault currents. - **String inverters and microinverters**, where compact yet high-performance fuses are essential for efficient operation. Installation of the SPFI006 is straightforward, thanks to its inline midget design, which allows for direct integration into existing wiring harnesses or combiner boxes. The fuse’s compact size ensures compatibility with tight spaces, while its high interrupting rating provides confidence in handling fault currents typical in solar applications. Littelfuse’s commitment to innovation and quality ensures that the SPFI006 meets or exceeds industry standards, including UL and IEC certifications for solar applications. Choosing the right fuse for a solar system involves considering factors such as voltage rating, interrupting capacity, and environmental resilience. The Littelfuse SPFI006 addresses these needs with a 1000VDC rating, ensuring compatibility with high-voltage solar arrays. Its midget inline design is optimized for ease of installation and maintenance, reducing downtime and labor costs. Additionally, Littelfuse’s global reputation for reliability and technical support provides customers with peace of mind, knowing that their solar investments are protected by a trusted brand. For engineers, installers, and system designers, the SPFI006 represents a cost-effective solution that balances performance, durability, and ease of integration. Whether deployed in a small residential system or a large-scale solar farm, this fuse delivers the protection and reliability needed to maximize system uptime and longevity. Trust Littelfuse to safeguard your solar power systems with the SPFI006—where innovation meets protection.
  • 1000VDC rated for high-voltage solar applications
  • Inline midget design for compact and easy installation
  • Reliable fault interruption to protect solar panels and inverters
  • Ideal for residential, commercial, and utility-scale solar systems
  • Manufactured by Littelfuse for trusted performance and durability

Specifications

Connection Type
Inline
Series
SPFI
Size
Midget Inline
Voltage Rating
1000VDC
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.