Littelfuse 318001P - FAST-ACTING TYPE GLASS W/ AXIAL 1A. 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

318001P

Alternate Item Number: 0318001.VXP

UPC: 079458926309


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Overview

The **Littelfuse 318001P 3AG Fast-Acting Fuse** is a high-performance, cost-effective solution for circuit protection in industrial, commercial, and electronic applications. Designed to meet the demanding requirements of modern electrical systems, this **1A fast-acting fuse** provides rapid response to overcurrent conditions, preventing damage to sensitive components and ensuring operational reliability. Manufactured by **Littelfuse**, a global leader in circuit protection solutions, the 318001P fuse combines **UL Standard 248-14 compliance** with **RoHS and lead-free** construction, making it ideal for environmentally conscious and regulatory-compliant designs. **Key Features & Benefits:** - **Fast-Acting Performance:** Engineered for quick response to fault conditions, the 318001P minimizes downtime and protects critical components from transient surges or overloads. This is particularly crucial in applications where even brief overcurrent events can lead to catastrophic failure. - **Versatile Form Factors:** Available in both **cartridge and axial lead formats**, the 318001P offers flexibility for integration into a wide range of enclosure designs and mounting configurations. The axial lead version simplifies installation in tight spaces, making it a preferred choice for PCB-mounted applications. - **UL 248-14 Certified:** Compliance with **UL Standard 248-14** ensures that the 318001P meets rigorous safety and performance benchmarks, providing peace of mind for engineers and system designers. This certification is essential for applications requiring third-party validation of protection components. - **RoHS & Lead-Free Compliance:** Aligned with global environmental standards, the fuse is manufactured without hazardous substances, supporting sustainable design practices and reducing end-of-life disposal concerns. - **Compact & Reliable Design:** The **3AG glass body** offers excellent thermal and mechanical stability, while the axial leads ensure secure connections and easy soldering or insertion into fuse holders. This design is trusted in industries where reliability is non-negotiable. **Typical Applications:** The **Littelfuse 318001P** is widely used across multiple industries, including: - **Industrial Automation:** Protecting control circuits, sensors, and PLCs from transient faults in manufacturing environments. - **Telecommunications:** Safeguarding power supplies and signal lines in base stations and networking equipment. - **Consumer Electronics:** Providing overcurrent protection in power adapters, chargers, and small appliances where space and reliability are critical. - **Automotive & Transportation:** Used in auxiliary circuits, lighting systems, and control modules where fast response and durability are required. - **Renewable Energy Systems:** Protecting inverters, battery management systems, and grid-tied equipment from fault conditions. **Why Choose Littelfuse?** With over **100 years of expertise** in circuit protection, Littelfuse is a trusted partner for engineers and procurement professionals worldwide. The company’s **3AG fast-acting fuses** are renowned for their **consistent performance, broad availability, and adherence to industry standards**, making them a go-to choice for critical applications. Whether you’re designing a new system or replacing existing components, the **318001P** delivers the **reliability, compliance, and cost-efficiency** required in today’s fast-paced industrial landscape. **Installation & Selection Considerations:** When integrating the **318001P** into your system, consider the following: - **Current Rating:** Ensure the fuse’s **1A rating** aligns with the maximum continuous current of the protected circuit to avoid nuisance blowing. - **Voltage Rating:** Verify that the fuse’s voltage rating exceeds the system’s operating voltage for safe operation. - **Mounting Options:** The axial lead design simplifies PCB integration, while cartridge-style holders provide easy replacement in field applications. - **Environmental Conditions:** The glass construction offers robust protection against moisture and contaminants, but always assess the operating environment for additional sealing or enclosure requirements. - **Replacement & Availability:** Littelfuse’s global distribution network ensures quick access to replacements, reducing downtime in critical systems. For engineers seeking a **proven, high-quality fuse** that balances performance, compliance, and cost, the **Littelfuse 318001P 3AG Fast-Acting Fuse** is an excellent choice. Its **fast response, versatility, and manufacturer-backed reliability** make it a staple in modern circuit protection strategies.
  • 1A fast-acting fuse for rapid overcurrent protection
  • UL Standard 248-14 certified for safety and compliance
  • Available in cartridge and axial lead formats for versatility
  • RoHS compliant and lead-free construction
  • Compact 3AG glass body for thermal and mechanical stability

Specifications

Amperage Rating
1 Amps
Application
Perfect for use in lighthing systems
Brand Name
Littelfuse
Connection Type
Axial Leads
Current Rating
1 A
Material
Glass
Mounting Type
PCB/Chassis Mount
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 Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20

E1062696

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

9F61BWW460

9F61 Size B Clips 1.6in
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.

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.