Littelfuse AGU5 - FUSE AGU 5AG 32V BOX 5A. 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.
Littelfuse

AGU5

Alternate Item Number: 0AGU005.T

UPC: 079458005585


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Overview

The Littelfuse AGU5 (SKU: AGU5) is a 5-ampere, 32-volt automotive glass fuse designed for precise overcurrent and short-circuit protection in vehicle electrical systems. Originally designated by the "all glass" (AG) prefix, this fuse is a standard in automotive applications, including variants like AGC and AGW. The AGU5 features a glass body for easy visual inspection of the fuse element, enabling quick identification of blown fuses by technicians and DIY enthusiasts. Manufactured in the US, this fuse adheres to stringent industry standards, ensuring consistent performance in diverse automotive environments. Its 1/4-inch diameter and 1-1/2-inch length make it compatible with standard 5AG fuse holders, providing a direct replacement solution for automotive manufacturers and repair professionals. The AGU5 is engineered to safeguard sensitive electronic components, such as ECUs, lighting systems, and infotainment modules, from damage caused by overcurrent conditions. With a voltage rating of 32V AC/DC (250V may be substituted in some applications), this fuse delivers reliable protection across a wide range of automotive electrical systems. The Littelfuse AG Series, to which the AGU5 belongs, is recognized for its precision manufacturing and adherence to Society of Fuse Engineers (SFE) specifications. This ensures optimal performance in applications ranging from passenger vehicles to light-duty trucks. The fuse's compact design and robust construction make it an ideal choice for both original equipment manufacturers (OEMs) and aftermarket repair scenarios. Trust Littelfuse, a leader in circuit protection technology, to deliver dependable protection for your vehicle's electrical infrastructure.
  • 5A current rating for precise overcurrent protection
  • 32V AC/DC voltage rating (250V may be substituted)
  • 1/4" diameter x 1-1/2" length for standard 5AG fuse holders
  • Glass body for easy visual inspection of fuse element
  • Manufactured in the US to stringent industry standards

Specifications

Application
Automotive
Brand Name
Littelfuse
Current Rating
5 A
Material
Glass
Series
AGU
Series
AG Series
Size
5AG
Size
1/4-inch diameter, 1-1/2-inch length
Special Features
Voltage rating 32V AC/DC
Sub Brand
AGU Boxed Series
Type
Glass Fuse
Voltage Rating
32V VAC
Package Dimensions (L x W x H)
3 IN x 2 IN x 1 IN
Package Dimensions (L x W x H)
7.62 cm x 5.08 cm x 25.4 mm
Package Weight (Imperial)
0.150 L
Package Weight (Metric)
0.068 kg
FUSE AGW 7AG 32V BOX 5A. 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.

AGW5

FUSE AGW 7AG 32V BOX 5A. 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.

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.