Littelfuse 314003P FAST-ACTING 3AB TYPE CERAMIC 3A. The 3AB Fast-Acting Fuse with ceramic body construction…

Name: Littelfuse 3AB Fast-Acting 3A Ceramic Fuse for high-current protection in industrial and electronic circuits.
Brand: Littelfuse
SKU: 314003P
Availability: InStock

Alternate Item Number: 0314003.VXP

UPC: 079458923896

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Overview

The **Littelfuse 3AB Fast-Acting 3A Ceramic Fuse (SKU: 314003P)** is a high-performance overcurrent protection solution engineered for demanding industrial and electronic applications where rapid response and robust reliability are critical. Designed with a **ceramic body construction**, this **3AB Series fuse** delivers superior interrupting ratings and voltage handling compared to standard glass-body fuses, making it an ideal choice for circuits exposed to high current loads or transient spikes. Certified to **UL Standard 248-14**, the 314003P ensures compliance with stringent safety and performance benchmarks, while its **RoHS compliance** and **lead-free** construction align with modern environmental and regulatory requirements. This fast-acting fuse is available in both **cartridge and axial lead formats**, providing flexibility for diverse installation environments—from compact PCB assemblies to heavy-duty industrial panels. Its **3A current rating** makes it particularly well-suited for protecting sensitive electronic components, power supplies, transformers, and motor circuits where precise overcurrent thresholds are essential to prevent damage. The **ceramic body** not only enhances thermal stability and mechanical strength but also allows for higher voltage ratings, ensuring reliable operation in high-energy circuits. Industries such as **automotive, telecommunications, industrial automation, power distribution, and renewable energy** rely on Littelfuse’s 3AB Series fuses for critical protection roles. Whether used in **battery management systems, motor drives, or control panels**, these fuses provide predictable and fast response times to isolate faults before they escalate into catastrophic failures. Professionals in these sectors trust Littelfuse for its **decades of expertise in circuit protection**, backed by rigorous testing and global distribution networks. Installation is straightforward, with options for **axial lead soldering or cartridge-style mounting**, depending on the application’s mechanical constraints. The fuse’s compact **3AB size** ensures compatibility with standard fuse holders and panels, reducing design complexity. For engineers and technicians, selecting the right Littelfuse 3AB fuse involves evaluating the circuit’s **maximum fault current, voltage rating, and ambient operating conditions**—factors where Littelfuse’s extensive portfolio and technical support simplify decision-making. Littelfuse, a global leader in circuit protection, has built its reputation on innovation, quality, and reliability. The **314003P** is a testament to this legacy, offering a blend of **high performance, durability, and compliance** that meets the rigorous demands of modern industrial and electronic systems. By integrating this fuse into your design, you gain peace of mind knowing that your equipment is safeguarded against overcurrent events with a component trusted by professionals worldwide.

3A fast-acting fuse with ceramic body for high interrupting ratings
Available in cartridge and axial lead formats for versatile installation
UL Standard 248-14 certified for safety and performance compliance
RoHS compliant and lead-free for environmental and regulatory adherence
Ideal for industrial, automotive, and electronic high-current applications

Specifications

Amperage Rating	150 Amps
Application	General Purpose
Brand Name	Littelfuse
Special Features	Economical/low interrupt
Standard	Standard 248-9 UL Listed/CSA
Sub Brand	POWR-GARD NLS Series
Type	Class K5

GPM-SRR90

Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount

30323R

Fuse Block 600VAC 600VDC Class CC 30A 3-Pole Pressure Plate with Reinforced Clip

C331156

Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20

E1062696

Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20

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.

9F61BWW460

9F61 Size B Clips 1.6in

LDC150

Littelfuse POWR-PRO® LDC series Class L fuses represent another first in fuse protection. LDC series fuses are the first UL Listed 600 volts AC and DC Class L fuse. Since they may be used for both AC and DC, they eliminate the concern that AC only fuses may be inserted into DC circuits. While LDC series fuses’ UL Listed DC interrupting rating is more than adequate for most applications (50,000 amperes at a 16 millisecond time constant), tests in our high power testing laboratory have shown that this remarkable fuse is capable of performing at much longer time constants. This makes the fuse uniquely suited for such applications as crane rail circuits and mass transit systems. Contact the factory for application information for special needs such as this. For AC-only systems, consider the use of POWR-PRO® KLPC series fuses. They have a full ten seconds time-delay at 500% rated current, and have a wider range of ratings.

RFS150

Fuse RFS - Class H - Fast-Acting 600VAC 150A Blade

1YMB531029M0004

CMF 7.2kV 200A 442/87mm S

Frequently Asked Questions

What types of fuses does Littelfuse offer for industrial applications?

Littelfuse offers UL Class fuses, high-speed fuses, medium voltage fuses, 10 x 38 mm fuses, and solar fuses for industrial applications.

What are Littelfuse high-speed fuses used for?

High-speed fuses protect power semiconductor devices against short circuits in power conversion applications like inverters and variable-speed drives.

What applications are E-rated and R-rated medium voltage fuses for?

These fuses protect transformers, potential transformers, feeders, and motor circuits, with designs available for various current, voltage, and mounting needs.

What are the voltage and amperage ranges for 10 x 38 mm fuses?

These fuses range from 125 to 1000 volts and 1/10 to 30 amperes, available in time-delay, fast-acting, board mount, or solar versions.

What is the maximum voltage for Littelfuse solar fuses and holders?

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

What conditions do Littelfuse feeder protection relays guard against?

They protect circuits from overcurrent, ground faults, phase loss, overload, and other detrimental conditions.

What is the Industrial Shock-Block® GFCI designed for?

It is designed for people protection in industrial facilities and meets UL Standard 943C Class C and Class D.

How do Littelfuse arc-flash protection relays work?

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

What types of protection do Littelfuse motor protection relays offer?

They offer voltage monitors, current monitors, and Bluetooth-enhanced overload relays for low and medium voltage applications.

What technical support is available through Littelfuse Techline?

Techline experts can answer questions on product cross references, general technical information, engineering drawings, and application assistance.

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.