Littelfuse L15S010 - The L15S series is a traditional North American Bolted style high-speed fuse for protection of power semiconductor devices that are rated up to 150 V ac and up to 150 V dc Littelfuse POWR-SPEED ® products offer optimized circuit protection at the extremely fast speed required to protect power semiconductor devices such as silicon controlled rectifiers (SCR’s), diodes, thyristors, triacs, transistors, and similar solid-state devices. These devices are used in power equipment including variable speed drives, power rectifiers, UPS systems, dc power supplies, and in a wide range of electronic equipment. May be used wherever extremely fastacting, current-limiting fuses with no time delay are required.
Littelfuse

L15S010

Alternate Item Number: L15S010.T

UPC: 079458002270


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Overview

The Littelfuse L15S010 is a high-speed bolted fuse designed specifically for the protection of power semiconductor devices operating at voltages up to 150 V ac and 150 V dc. This fuse is part of the renowned POWR-SPEED® series, which is engineered to provide optimized circuit protection at the extremely fast speeds necessary to safeguard critical components such as silicon controlled rectifiers (SCRs), diodes, thyristors, triacs, and transistors. These solid-state devices are integral to various power equipment applications, including variable speed drives, power rectifiers, uninterruptible power supplies (UPS), and dc power supplies. The L15S series is particularly valuable in environments where rapid response times are essential, as it features a current-limiting design with no time delay, ensuring immediate protection against overcurrent conditions. By utilizing the L15S010 fuse, manufacturers can enhance the reliability and longevity of their electronic equipment while minimizing the risk of damage due to electrical faults. This fuse is an ideal choice for engineers and technicians seeking dependable and efficient protection solutions for their power semiconductor applications.
  • High-speed bolted fuse for immediate overcurrent protection
  • Rated for 150 V ac and 150 V dc applications
  • Optimized for power semiconductor devices like SCRs and diodes
  • Current-limiting design with no time delay
  • Ideal for variable speed drives, UPS systems, and more

Specifications

Application
Semiconducting Devices
Brand Name
Littelfuse
Series
L15S
Series
POWR-SPEED® L15S
Special Features
Very Fast Acting
Standard
CSA Certified
Sub Brand
L15S Series
Type
Semiconductor Fuses
Voltage Rating
150 V
Voltage Rating
150 V ac / 150 V dc
Voltage Rating
150 V AC/DC
Package Weight (Imperial)
0.016 L
Package Weight (Metric)
0.007 kg
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9F61 Size B Clips 1.6in

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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.

Frequently Asked Questions

What types of fuses does Littelfuse offer?

Littelfuse offers UL Class fuses, high-speed fuses, medium voltage fuses, 10x38mm fuses, and solar fuses for various applications.

What voltage range do 10x38mm fuses support?

10x38mm fuses are available with ratings ranging from 125 to 1000 volts and 1/10 to 30 amperes.

What voltage do Littelfuse solar fuses support?

Littelfuse offers solar fuses and holders that support up to 1500 Vdc for both high-current and low-current photovoltaic applications.

What is the Industrial Shock-Block® GFCI?

It is a permanently connected, special-purpose GFCI meeting UL Standard 943C Class C and D for people protection in industrial facilities.

How can I get technical support for Littelfuse products?

Technical support is available through Littelfuse Techline for product cross references, technical information, engineering drawings, and application assistance.

What can I do on the Littelfuse Business Center?

Users can check product availability, pricing, place orders, view order status, manage SPAs, order literature, and access technical resources.

What are Littelfuse high-speed fuses used for?

High-speed fuses protect power semiconductor devices from short circuits in applications like inverters, variable-speed drives, UPS, and DC drive systems.

What features do Littelfuse fuse blocks offer?

Littelfuse fuse blocks and holders feature compact designs, an indication feature, and flexibility for DIN-rail mounting.

What are POWR-BLOKS power distribution blocks used for?

POWR-BLOKS provide a safe way to splice cables and manage power distribution in panels and systems, with touch-safe features.

What do Littelfuse pre-engineered switch panels offer?

These UL Listed, customizable products are designed to meet NEC® coordination requirements for the construction market.

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.