Littelfuse MAX70 - AUTOMOTIVE MAXI SLO-BLO BLADE 70A. 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

MAX70

Alternate Item Number: 0MAX070.X

UPC: 079458021042


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Overview

The Littelfuse MAX70 (SKU: MAX70) is a 70A automotive-grade MAXI SLO-BLO blade fuse engineered for reliable circuit protection in motor-powered applications. This fuse leverages Littelfuse's patented Diffusion Pill Technology, which provides excellent time delay characteristics and minimizes heat dissipation. This advanced technology is crucial for applications experiencing large inrush currents, such as those found in electric motors, power windows, and seat motors. The MAXI fuse series is specifically designed and patented by Littelfuse to handle these high startup currents effectively, preventing nuisance tripping while ensuring accurate overcurrent protection. Key features of the MAX70 include its robust 70A current rating, making it suitable for a variety of high-demand automotive electrical systems. The MAXI blade design ensures compatibility with standard automotive fuse blocks and panels. The Diffusion Pill Technology not only enhances time delay performance but also contributes to the overall longevity and reliability of the fuse by reducing thermal stress during fault conditions. This makes the MAX70 an ideal choice for engineers and technicians requiring dependable circuit protection in challenging operational scenarios. Its application in motor-powered systems is a primary benefit, where the fuse's ability to withstand temporary overloads during motor startup is paramount. The Littelfuse MAX70 offers precise and consistent overcurrent interruption, safeguarding sensitive electrical components from damage. Its origin country is the US, ensuring adherence to stringent manufacturing standards. With a voltage rating of 32V, this fuse is designed to meet the demands of modern automotive electrical systems, providing a reliable solution for high-inrush motor applications. The MAX70 is part of the MAXI series, which is widely recognized for its superior performance in motor-driven devices.
  • 70A current rating for high-demand motor applications
  • Patented Diffusion Pill Technology for excellent time delay and low heat dissipation
  • 32V voltage rating for automotive and industrial use
  • MAXI blade design for compatibility with standard fuse blocks
  • Designed to handle large inrush currents, preventing nuisance tripping

Specifications

Application
Automotive
Brand Name
Littelfuse
Connection Type
Blade
Current Rating
70 A
Mounting Type
Panel Mount
Series
MAXI
Size
MAXI Blade
Standard
RoHS
Sub Brand
299 Series
Package Dimensions (L x W x H)
2 IN x 1 IN x 1 IN
Package Dimensions (L x W x H)
5.08 cm x 25.4 mm x 25.4 mm
Package Weight (Imperial)
0.250 L
Package Weight (Metric)
0.113 kg
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.

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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.

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.