Littelfuse

LA130URD73LI0315

Name: Littelfuse LA130URD73LI0315 Very Fast-Acting Semiconductor Fuse for SCRs, diodes, IGBTs. Low I2t.
Brand: Littelfuse
SKU: LA130URD73LI0315
Availability: InStock

UPC: 079458155358

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Overview

The Littelfuse LA130URD73LI0315 is a high-performance, very fast-acting semiconductor fuse engineered to provide superior protection for critical power electronic components. As part of Littelfuse's North American style square body high-speed fuse series, this product offers maximum flexibility in equipment design and ultimate protection for today’s demanding power conversion applications. Its design is specifically tailored to safeguard sensitive semiconductor devices such as SCRs, diodes, thyristors, GTOs, and IGBTs, ensuring operational integrity and longevity. Engineered with precision, the LA130URD73LI0315 features pure die-cut elements embedded in solidified sand. This construction method is crucial for controlling arcing and significantly lowering the I²t (current squared times time) rating. A low I²t value is paramount in semiconductor protection as it minimizes the energy let-through during a fault, thereby reducing damage to the protected components. This makes the fuse an ideal choice for applications where even brief overcurrents can be catastrophic. Flexibility in equipment design is a hallmark of the Littelfuse square body fuse series. The LA130URD73LI0315 is available in a broad range of ampere ratings within a given body size, allowing engineers to select the precise protection level required without compromising on physical dimensions. Furthermore, the availability of multiple mounting styles provides a wide choice for integration into various equipment configurations, simplifying the design and manufacturing process. Key features that underscore the reliability and performance of the LA130URD73LI0315 include: * **Extremely Fast-Acting and Current-Limiting:** Provides rapid response to overcurrents, offering enhanced protection for sensitive equipment. * **Very Low I²t:** Minimizes damage to protected components by limiting the energy let-through during fault conditions. * **Superior Cycling Ability:** Ensures long, reliable life even under high cyclic loading, a critical factor in many industrial applications. * **Blown Fuse Trip Indicator:** Equipped with a visual indicator for quick and easy identification of a blown fuse, simplifying maintenance and troubleshooting. * **Choice of Mounting Styles:** Offers design flexibility to accommodate diverse equipment architectures. * **Broad Range of Ampere Ratings:** Allows for precise selection of protection levels within a specific body size. The applications for the Littelfuse LA130URD73LI0315 are extensive and critical within the industrial landscape. It is ideally suited for the protection of rectifiers, inverters, DC drives, Uninterruptible Power Supply (UPS) systems, and reduced voltage motor starters. These components are fundamental to a wide array of globally accepted applications, including industrial automation, renewable energy systems, electric vehicle charging infrastructure, and telecommunications power systems. By employing the LA130URD73LI0315, engineers can be confident in the robust protection of their power conversion equipment, ensuring operational continuity and safeguarding valuable assets against electrical faults. Littelfuse's reputation for quality and innovation in circuit protection makes this fuse a trusted choice for demanding industrial environments.

Very fast-acting and current-limiting for superior equipment protection
Low I²t minimizes damage to protected SCRs, diodes, thyristors, GTOs, and IGBTs
Pure die-cut elements embedded in solidified sand for controlled arcing
Superior cycling ability ensures long, reliable life under high cyclic loading
Choice of mounting styles and broad ampere ratings for design flexibility

Specifications

Application	Protection of Semiconductors
Brand Name	Littelfuse
Current Rating	315 A
Material	Silica sand with pure die-cut elements
Mounting Type	Multiple mounting styles
Series	73LI
Special Features	Very-Fast Acting
Standard	UL Recognized
Sub Brand	LA Series
Type	Semiconductor Fuse

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PSX1XLUB0315

POWR-SPEED SQB SIZE 1XL BOLTED BL 315A. Littelfuse PSX series 1500 V dc high-speed square bodyfuses are specially designed to protect battery energy storage systems (BESS), photovoltaic inverters, and many of dc applications such as dc common bus systems, larger industrial regenerative drives, rectifiers and, metal processing equipment. The PSX series fuses are extremely fast-acting, offering high-speed performance up to 1500 V dc, ranging from 80 A to 1400 A in the smallest NH XL package sizes. The PSX series is available with multiple mounting terminations including flush-end style, DIN-style and bolted-blade style. Visual blown fuse indication is standard on all fuses and optional micro-switch is available for external indication. PSX series are certified to UL 248-13 and designed to meet EN high-speed semiconductor fuse standard and IEC 60269-7, a new battery protection fuse standard in development.

PSR071DL0315

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PSR070UL0315

Littelfuse PSR Series High-Speed Square Body Fuses are specially designed for protection of power semiconductor devices such as diodes, triacs, IGBTs, SCRs, MOSFETs and other solid-state devices that are typically designed into power conversion and power conditioning equipment. Variable frequency drives, inverters, UPS, rectifiers and soft-starters are examples of typical equipment designed with sensitive power semiconductor devices that cannot withstand any line surge or overcurrent conditions and require high-speed protection. Littelfuse POWR-SPEED® PSR Series products offer optimized circuit protection at the extremely fast speed required to protect modern day power conversion devices. Available in Bolted Blade Style Termination (Typical in North American Market) with visual blown fuse indication standard on all fuses and optional Micro-switch for external indication.

PSR030DS0315

PSR070FS0315

Littelfuse PSR Series High-Speed Square Body Fuses are specially designed for protection of power semiconductor devices such as diodes, triacs, IGBTs, SCRs, MOSFETs and other solid state devices that are typically designed into power conversion and power conditioning equipment. Variable frequency drives, inverters, UPS, rectifiers and soft-starters are examples of typical equipment designed with sensitive power semiconductor devices that cannot withstand any line surge or overcurrent conditions and require high-speed protection. Littelfuse POWR-SPEED® PSR Series products offer optimized circuit protection at the extremely fast speed required to protect modern day power conversion devices. Such products are commonly found in numerous applications including pulp and paper industries, cranes and heavy-lifting equipment, processing industries, wastewater treatment plants and various large factories and MRO facilities.

PSR030US0315

PSR031FL0315

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PSR030DL0315

PSR072DL0315

PSR070FL0315

Littelfuse PSR Series High-Speed Square Body Fuses are specially designed for protection of power semiconductor devices such as diodes, triacs, IGBTs, SCRs, MOSFETs and other solid state devices that are typically designed into power conversion and power conditioning equipment. Variable frequency drives, inverters, UPS, rectifiers and soft-starters are examples of typical equipment designed with sensitive power semiconductor devices that cannot withstand any line surge or overcurrent conditions and require high-speed protection. Littelfuse POWR-SPEED® PSR Series products offer optimized circuit protection at the extremely fast speed required to protect modern day power conversion devices. Such products are commonly found in numerous applications including pulp and paper industries, cranes and heavy-lifting equipment, processing industries, wastewater treatment plants and various large factories and MRO facilities.

PSR072UL0315

PSR073FL0315

Littelfuse PSR Series High-Speed Square Body Fuses are specially designed for protection of power semiconductor devices such as diodes, triacs, IGBTs, SCRs, MOSFETs and other solid state devices that are typically designed into power conversion and power conditioning equipment. Variable frequency drives, inverters, UPS, rectifiers and soft-starters are examples of typical equipment designed with sensitive power semiconductor devices that cannot withstand any line surge or overcurrent conditions and require high-speed protection. Littelfuse POWR-SPEED® PSR Series products offer optimized circuit protection at the extremely fast speed required to protect modern day power conversion devices. Such products are commonly found in numerous applications including pulp and paper industries, cranes and heavy-lifting equipment, processing industries, wastewater treatment plants and various large factories and MRO facilities.

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.

Littelfuse

LA130URD73LI0315

Documents & Media

Overview

Specifications

Application

Brand Name

Current Rating

Material

Mounting Type

Series

Special Features

Standard

Sub Brand

Type