Littelfuse MEG125L - MEGA FUSE 125 A, 50 PACK. The MEGA® Fuse is designed for high current circuit protection up to 250 amperes with Diffusion Pill Technology. The MEGA® Fuse also provides time delay characteristics. Designed and patented by Littelfuse, the MEGA® Fuse is ideal for battery and alternator protection application and other heavy gauge cables requiring ultra-high current protection.
Littelfuse

MEG125L

UPC: 079458093575

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Minimum Qty: 50

Multiplier: 50

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Overview

The Littelfuse MEGA® Fuse (SKU: MEG125L) is engineered for robust high-current circuit protection, specifically designed for demanding applications such as battery and alternator protection, and other heavy-gauge cable systems requiring ultra-high current handling. This fuse features Littelfuse's patented Diffusion Pill Technology, ensuring reliable overcurrent protection up to 250 amperes. Crucially, the MEGA® Fuse incorporates time-delay characteristics, which prevent nuisance tripping during temporary, short-duration overloads like motor startups or battery charging cycles. This time-delay functionality enhances system uptime and operational stability. Designed for 32V DC systems, commonly found in automotive, marine, and industrial power distribution networks, the MEG125L offers dependable safeguarding for critical electrical components. Each pack contains 50 fuses, providing an economical solution for bulk purchasing and large-scale installations. The MEGA® Fuse series is the preferred choice for applications where standard fuses are insufficient due to their substantial current load capabilities. Key applications include heavy-duty vehicles, industrial machinery, and power supplies. Littelfuse's commitment to quality is evident in the design and performance of the MEGA® Fuse, offering dependable protection for demanding electrical systems. The 125A rating is suitable for circuits requiring significant current handling while maintaining safety standards. This fuse series is a trusted component for professionals seeking reliable circuit protection solutions.
  • High-current protection up to 250 amperes
  • Patented Diffusion Pill Technology
  • Time-delay characteristics to prevent nuisance tripping
  • Ideal for battery and alternator protection
  • Designed for 32V DC systems, 50-pack
  • 50-pack for economical bulk purchasing

Specifications

Amperage Rating
125 Amp
Application
Automotive
Brand Name
Littelfuse
Current Rating
125 A
Series
MEGA
Special Features
Splashproof
Sub Brand
MEGA Series
Type
Bolt Down Fuse Holder
Voltage Rating
32 V DC

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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.