Littelfuse 318004P - FAST-ACTING TYPE GLASS W/ AXIAL 4A. The 3AG Fast-Acting Fuse solves a broad range of application requirements while offering reliable performance and cost-effective circuit protection. Features: In accordance with UL Standard 248-14. Available in cartridge and axial lead format and with various forming dimensions. RoHS compliant and Lead-free.
Littelfuse

318004P

Alternate Item Number: 0318004.VXP

UPC: 079458926392


Documents & Media
BrochureTechnical BulletinTechnical DrawingSpecification Sheet

Contact for Pricing

Minimum Qty: 5

Multiplier: 5

*Contact for lower quantities*

Overview

The Littelfuse 3AG Fast-Acting Fuse (SKU: 318004P) represents a cornerstone of reliable and cost-effective circuit protection for a diverse array of industrial and electronic applications. Engineered by Littelfuse, a globally recognized leader in circuit protection solutions, this fuse is designed to safeguard sensitive components and equipment from damaging overcurrent events. Its fast-acting interruption characteristic ensures that it responds swiftly to fault conditions, minimizing the potential for collateral damage and costly downtime. Adherence to stringent industry standards is paramount, and the 318004P fuse proudly meets UL Standard 248-14, a testament to its quality and safety. This compliance provides engineers and designers with the confidence that the fuse will perform as expected under critical circumstances. Furthermore, its RoHS compliance and lead-free construction underscore a commitment to environmental responsibility, aligning with modern manufacturing and sustainability initiatives. This makes it an ideal choice for applications where regulatory compliance and eco-friendly materials are essential. The versatility of the 3AG fuse is further enhanced by its availability in both cartridge and axial lead formats, along with various forming dimensions. This flexibility allows for seamless integration into a wide spectrum of designs, from compact consumer electronics to robust industrial control panels. The axial lead configuration, in particular, is well-suited for through-hole mounting on printed circuit boards (PCBs), offering a secure and reliable connection. Key features and benefits of the Littelfuse 3AG Fast-Acting Fuse (318004P) include: * **Fast-Acting Interruption:** Provides rapid response to overcurrents, protecting delicate circuitry. * **UL 248-14 Compliance:** Meets rigorous industry safety and performance standards. * **RoHS Compliant & Lead-Free:** Environmentally responsible materials for modern applications. * **Versatile Formats:** Available in cartridge and axial lead options for diverse integration needs. * **Cost-Effective Protection:** Delivers reliable performance without compromising budget. This fuse is an indispensable component in numerous sectors, including industrial automation, telecommunications, power supplies, consumer electronics, automotive systems, and medical devices. Its ability to offer dependable protection at an economical price point makes it a preferred choice for engineers seeking to optimize both performance and cost. When selecting circuit protection, the Littelfuse 3AG Fast-Acting Fuse stands out as a proven solution, backed by the reputation of a trusted manufacturer.
  • Fast-acting interruption for rapid overcurrent protection.
  • Complies with UL Standard 248-14 for assured safety and performance.
  • RoHS compliant and lead-free for environmentally conscious designs.
  • Available in axial lead format for easy PCB integration.
  • Cost-effective solution for a wide range of industrial applications.

Specifications

Amperage Rating
3 AMPS
Application
Perfect for use in lighthing systems
Brand Name
Littelfuse
Connection Type
Axial Lead
Current Rating
4 A
Material
Glass
Series
3AG Fast-Acting
Size
3AG
Special Features
Time-Delay
Standard
Standard 248-14 UL Listed/CSA
Sub Brand
POWR-GARD LMF Series
Type
InLine Fuse
Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount

GPM-SRR90

Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount
Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20

C331156

Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20
Fuse Block 1500VAC 1500VDC 400A 1-Pole Stud M8

1SCM8

Fuse Block 1500VAC 1500VDC 400A 1-Pole Stud M8
Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20

E1062696

Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20
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.
9F61 Size B Clips 1.6in

9F61BWW460

9F61 Size B Clips 1.6in

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.