Littelfuse SPXI050 - 1500VDC INLINE MIDGET SOLAR FUSE
Littelfuse

SPXI050

UPC: 079458263824


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Specification Sheet

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Overview

The Littelfuse SPXI050 is a critical component for modern high-voltage direct current (HVDC) solar power systems, engineered to provide robust and reliable overcurrent protection. Designed specifically for the demanding environment of solar energy generation, this 1500VDC inline midget fuse ensures the safety and longevity of solar arrays, inverters, and associated electrical infrastructure. In the rapidly expanding solar industry, where system voltages are continually increasing to enhance efficiency, the need for specialized protection devices like the SPXI050 becomes paramount. This fuse is built to withstand the unique challenges of solar applications, including fluctuating temperatures, potential surges, and the continuous operation required for maximum energy harvest. Engineered by Littelfuse, a globally recognized leader in circuit protection, the SPXI050 embodies a commitment to quality and performance. Its inline midget form factor allows for seamless integration into existing solar panel junction boxes, combiner boxes, and inverter DC input terminals. This compact design minimizes space requirements and simplifies installation, a crucial factor for both large-scale solar farms and residential installations. The fuse's construction is optimized for durability, ensuring it performs consistently under harsh environmental conditions, from extreme heat to cold, and exposure to moisture and UV radiation. Key benefits and features of the Littelfuse SPXI050 include: * **High Voltage Rating:** Rated for 1500VDC, making it suitable for the latest generation of high-voltage solar systems. * **Superior Overcurrent Protection:** Effectively interrupts fault currents to prevent damage to sensitive solar components and mitigate fire hazards. * **Compact Inline Design:** Facilitates easy integration and space-saving installations in solar power systems. * **Robust Construction:** Built to withstand the rigorous demands of outdoor solar environments. * **Enhanced System Reliability:** Contributes to the overall stability and dependable operation of solar energy generation. The SPXI050 is an indispensable choice for a wide array of solar projects, including utility-scale solar farms, commercial rooftop installations, and residential solar power systems. By safeguarding against overcurrents and short circuits, it protects valuable investments in solar technology and ensures continuous power generation. Professionals in the solar industry rely on Littelfuse for their circuit protection needs, trusting the brand's extensive experience and dedication to innovation. The SPXI050 is a testament to this legacy, offering peace of mind and dependable performance for critical solar infrastructure. When selecting components for your solar energy solution, the Littelfuse SPXI050 1500VDC Inline Midget Solar Fuse stands out as a premier choice for safety, reliability, and long-term operational efficiency.
  • 1500VDC rated for high-voltage solar systems
  • Inline midget form factor for easy integration
  • Provides essential overcurrent and short-circuit protection
  • Engineered for reliability in demanding solar environments
  • Manufactured by Littelfuse, a leader in circuit protection

Specifications

Connection Type
Inline
Connection Type
Inline wire
Material
Nickel-Plated Copper Alloy
Mounting Type
Inline integration
Series
SPXI
Series
Midget Solar
Size
Midget
Size
Inline Midget
Voltage Rating
1500 VDC
1500 VDC 2.25 A INLINE MIDGET FUSE 8AWG

SPXI2.25LXB

1500 VDC 2.25 A INLINE MIDGET FUSE 8AWG

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.