Littelfuse MAX50 - AUTOMOTIVE MAXI SLO-BLO BLADE 50A. With “Diffusion Pill Technology” the MAXI™ Fuse provides excellent time delay characteristics and low heat dissipation. Designed and patented by Littelfuse, the MAXI™ Fuse is ideal for motor powered applications which have large inrush currents.
Littelfuse

MAX50

Alternate Item Number: 0MAX050.X

UPC: 079458006339


Documents & Media
Brochure

Contact for Pricing

Minimum Qty: 10

Multiplier: 10

*Contact for lower quantities*

Overview

The Littelfuse MAX50 (SKU: MAX50) is a 50A MAXI SLO-BLO Blade Fuse engineered for robust overcurrent protection in automotive and motor-powered applications. This fuse leverages Littelfuse's patented Diffusion Pill Technology, which delivers superior time-delay characteristics and significantly reduced heat dissipation compared to standard fuses. The design is optimized for applications with high inrush currents, such as motor starts, where conventional fuses may open prematurely due to transient overloads. The MAX50 is ideal for protecting critical electrical systems, including automotive power windows, seat motors, HVAC blowers, and other motor-driven accessories. With a current rating of 50A and a MAXI fuse size, it fits standard MAXI fuse blocks and holders. The fuse is manufactured in the US, ensuring consistent quality and reliability. For applications requiring visual indication of a blown fuse, Littelfuse offers Smart Glow variants (e.g., 0MAX050.XPGLO), which feature an indicator light that glows when the fuse is open, drastically reducing troubleshooting time. The MAXI fuse series, including the MAX50, is a trusted solution for demanding environments where dependable circuit protection is essential. Key specifications include a 32V voltage rating, 50A current rating, and compliance with automotive standards. The fuse's low heat dissipation ensures minimal energy loss and prolonged component lifespan, making it a cost-effective choice for both OEM and aftermarket applications.
  • 50A current rating for robust protection
  • MAXI SLO-BLO Blade Fuse form factor
  • Patented Diffusion Pill Technology for excellent time delay
  • Low heat dissipation for improved efficiency
  • Ideal for motor-powered applications with large inrush currents

Specifications

Application
Automotive
Brand Name
Littelfuse
Standard
RoHS
Sub Brand
299 Series
AUTOMO MAXI SLO-BLO SMART GLOW 80A. With “Diffusion Pill Technology” the MAXI™ Fuse provides excellent time delay characteristics and low heat dissipation. Designed and patented by Littelfuse, the MAXI™ Fuse is ideal for motor powered applications which have large inrush currents. Smart Glow fuses are innovative automotive style fuses (ATO, Mini, Maxi and glass tube) that feature an indicator light that glows when the fuse is blown, saving time to troubleshoot an open circuit.

0MAX080.XPGLO

AUTOMO MAXI SLO-BLO SMART GLOW 80A. With “Diffusion Pill Technology” the MAXI™ Fuse provides excellent time delay characteristics and low heat dissipation. Designed and patented by Littelfuse, the MAXI™ Fuse is ideal for motor powered applications which have large inrush currents. Smart Glow fuses are innovative automotive style fuses (ATO, Mini, Maxi and glass tube) that feature an indicator light that glows when the fuse is blown, saving time to troubleshoot an open circuit.
AUTOMOTIVE MAXI SLO-BLO BLADE 80A. With “Diffusion Pill Technology” the MAXI™ Fuse provides excellent time delay characteristics and low heat dissipation. Designed and patented by Littelfuse, the MAXI™ Fuse is ideal for motor powered applications which have large inrush currents.

MAX80

AUTOMOTIVE MAXI SLO-BLO BLADE 80A. With “Diffusion Pill Technology” the MAXI™ Fuse provides excellent time delay characteristics and low heat dissipation. Designed and patented by Littelfuse, the MAXI™ Fuse is ideal for motor powered applications which have large inrush currents.
LOW-PROFILE MINI 58VDC SILVER 20A. The Low Profile MINI® fuse has similar performance characteristics as the standard MINI® fuse. The lower overall height allows for more space and weight savings. The Low Profile MINI® fuse is designed to mate with tuning-fork terminals, which provides additional weight and material savings in fuse box designs by eliminating the need for female box terminals.

LMIN020.V

LOW-PROFILE MINI 58VDC SILVER 20A. The Low Profile MINI® fuse has similar performance characteristics as the standard MINI® fuse. The lower overall height allows for more space and weight savings. The Low Profile MINI® fuse is designed to mate with tuning-fork terminals, which provides additional weight and material savings in fuse box designs by eliminating the need for female box terminals.
FUSE - MAXI 32V 50A 50 PC. With "Diffusion Pill Technology" the MAXI® Fuse provides excellent time delay characteristics and low heat dissipation. Designed and patented by Littelfuse, the MAXI fuse is ideal for motor powered applications which have large inrush currents.

0299050.L

FUSE - MAXI 32V 50A 50 PC. With "Diffusion Pill Technology" the MAXI® Fuse provides excellent time delay characteristics and low heat dissipation. Designed and patented by Littelfuse, the MAXI fuse is ideal for motor powered applications which have large inrush currents.
AUTOMO MINI BLADE TYPE 3000-PACK 5A. The MINI® Fuse is quickly becoming the new standard for vehicle circuit protection throughout the world. Its miniature design, patented by Littelfuse, meets the need for more circuits to be protected while utilizing less space, and its ability to cope with high temperatures in adverse environments makes the MINI® Fuse the recommended choice for protection.

0297005.WXNV

AUTOMO MINI BLADE TYPE 3000-PACK 5A. The MINI® Fuse is quickly becoming the new standard for vehicle circuit protection throughout the world. Its miniature design, patented by Littelfuse, meets the need for more circuits to be protected while utilizing less space, and its ability to cope with high temperatures in adverse environments makes the MINI® Fuse the recommended choice for protection.
FUSE AGX 8AG 32V BOX 20A. Originally stood for “all glass.” The automotive industry uses the “AG” prefix (AGC, AGW) for most glass fuses. They vary in length, diameter and amperage rating.

AGX20

FUSE AGX 8AG 32V BOX 20A. Originally stood for “all glass.” The automotive industry uses the “AG” prefix (AGC, AGW) for most glass fuses. They vary in length, diameter and amperage rating.
FUSE PAL AUTOLINK 32V 13/16 BNT BOX 100A. PAL™ Fuses are available in current ratings up to 120 amperes, with either female or bolt-on terminals.

PAL2100

FUSE PAL AUTOLINK 32V 13/16 BNT BOX 100A. PAL™ Fuses are available in current ratings up to 120 amperes, with either female or bolt-on terminals.
FUSE AGX 8AG 125V BOX 3A. Originally stood for “all glass.” The automotive industry uses the “AG” prefix (AGC, AGW) for most glass fuses. They vary in length, diameter and amperage rating.

AGX3

FUSE AGX 8AG 125V BOX 3A. Originally stood for “all glass.” The automotive industry uses the “AG” prefix (AGC, AGW) for most glass fuses. They vary in length, diameter and amperage rating.
FAST-ACTING AUTOMOTIVE BLADE FUSE 20A. The ATO® Fuse was designed and patented by Littelfuse in 1976 and set the standard for automotive circuit protection. It features industry standard color coding to indicate amperage rating.287 Series replaces 257 Series.

ATO020

FAST-ACTING AUTOMOTIVE BLADE FUSE 20A. The ATO® Fuse was designed and patented by Littelfuse in 1976 and set the standard for automotive circuit protection. It features industry standard color coding to indicate amperage rating.287 Series replaces 257 Series.
FAST-ACTING AUTOMO BLADE P-PACK 1A. Developed by Littelfuse for the automotive industry, the ATOF® fuse has become the original equipment circuit protection standard for foreign and domestic automobiles and trucks. Readily identifiable and easily replaced, this fuse can be specified for a variety of low voltage electronic applications.

0287001.PXCN

FAST-ACTING AUTOMO BLADE P-PACK 1A. Developed by Littelfuse for the automotive industry, the ATOF® fuse has become the original equipment circuit protection standard for foreign and domestic automobiles and trucks. Readily identifiable and easily replaced, this fuse can be specified for a variety of low voltage electronic applications.
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.

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.
AUTOMO MAXI SLO-BLO SMART GLOW 50A. With “Diffusion Pill Technology” the MAXI™ Fuse provides excellent time delay characteristics and low heat dissipation. Designed and patented by Littelfuse, the MAXI™ Fuse is ideal for motor powered applications which have large inrush currents. Smart Glow fuses are innovative automotive style fuses (ATO, Mini, Maxi and glass tube) that feature an indicator light that glows when the fuse is blown, saving time to troubleshoot an open circuit.

0MAX050.XPGLO

AUTOMO MAXI SLO-BLO SMART GLOW 50A. With “Diffusion Pill Technology” the MAXI™ Fuse provides excellent time delay characteristics and low heat dissipation. Designed and patented by Littelfuse, the MAXI™ Fuse is ideal for motor powered applications which have large inrush currents. Smart Glow fuses are innovative automotive style fuses (ATO, Mini, Maxi and glass tube) that feature an indicator light that glows when the fuse is blown, saving time to troubleshoot an open circuit.

Frequently Asked Questions

What are the voltage and current ratings for 10x38mm fuses?

10x38mm fuses are available with ratings from 125 to 1000 volts and 1/10 to 30 amperes. They provide compact supplemental protection.

What is the maximum voltage for Littelfuse solar fuses?

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

What are POWR-BLOKS power distribution blocks used for?

POWR-BLOKS provide a safe, convenient way for splicing cables and managing power distribution requirements within panels and systems.

Are Littelfuse pre-engineered panels UL Listed?

Yes, Littelfuse Pre-Engineered electrical switch panel solutions are UL Listed and designed to meet NEC® coordination requirements.

What conditions do feeder protection relays guard against?

Feeder protection relays protect circuits from overcurrent, ground faults, phase loss, overload, and other detrimental conditions.

What UL standard does the Industrial Shock-Block® GFCI meet?

The Industrial Shock-Block® GFCI meets UL Standard 943C Class C and Class D, designed for people protection in industrial facilities.

What are the benefits of high-resistance grounding?

High-resistance grounding limits point-of-fault damage, eliminates arc-flash hazards, and prevents transit overvoltages associated with ground faults.

What do Littelfuse voltage monitors protect against?

Littelfuse voltage monitors provide protection against both supply line and load side faults when the motor is running.

What applications are Littelfuse timers and flashers used for?

Littelfuse timers and flashers are used to delay starting and stopping loads, cycling, and sequencing of motors, pumps, compressors, heaters, and lighting.

How do Littelfuse arc-flash relays protect equipment?

Littelfuse arc-flash relays detect a developing arc-flash incident and send a trip signal to interrupt power before significant damage occurs.

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.