Littelfuse H314003P - FAST-ACTING TYPE CERAMIC H-PACK 3A. The 3AB Fast-Acting Fuse with ceramic body construction permits higher interrupting ratings and voltage ratings. Ideal for applications where high current loads are expected. 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

H314003P

Alternate Item Number: 0314003.HXP

UPC: 079458923872


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Minimum Qty: 100

Multiplier: 100

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Overview

The **Littelfuse 3AB Fast-Acting Ceramic Fuse (SKU: H314003P)** is a premium-grade overcurrent protection solution engineered for industrial and high-performance electronic applications where reliability and precision are non-negotiable. Designed with a robust ceramic body, this 3A fuse delivers exceptional interrupting ratings and voltage performance, ensuring superior circuit protection in high-current environments. Certified to **UL Standard 248-14**, the 3AB series meets stringent safety and performance benchmarks, making it a trusted choice for engineers and technicians across diverse sectors. **Key Features & Benefits:** - **High Interrupting Ratings:** The ceramic construction enables the fuse to safely interrupt high fault currents, preventing catastrophic failures in power distribution, motor control, and industrial machinery. - **Versatile Mounting Options:** Available in both **cartridge and axial lead formats**, the 3AB fuse adapts seamlessly to various panel designs, enclosures, and PCB layouts, reducing installation complexity. - **Fast-Acting Response:** Engineered for rapid response to overcurrent conditions, this fuse protects sensitive components from damage caused by transient surges or sustained overloads, minimizing downtime and repair costs. - **Compliance & Environmental Safety:** Fully **RoHS compliant and lead-free**, the 3AB fuse aligns with global sustainability standards without compromising performance, ensuring peace of mind for environmentally conscious projects. - **Wide Application Range:** Ideal for applications such as **industrial control systems, power supplies, telecommunications equipment, automotive electronics, and renewable energy systems**, where consistent and reliable circuit protection is critical. **Industry Applications:** In **industrial automation**, the 3AB fuse safeguards motor drives, PLCs, and control panels from overloads, while in **power distribution**, it ensures the integrity of branch circuits and distribution panels. Telecommunications networks rely on its fast-acting response to protect sensitive data transmission equipment, and automotive manufacturers integrate it into high-current lighting and accessory circuits. The fuse’s **ceramic body** also provides superior thermal stability, making it suitable for harsh environments where temperature fluctuations are common. **Why Choose Littelfuse?** With over a century of innovation in circuit protection, Littelfuse is a globally recognized leader in fuses, surge protection devices, and semiconductor protection solutions. The **3AB series** exemplifies the company’s commitment to engineering excellence, offering engineers a dependable, high-performance fuse that meets the demands of modern electrical systems. Whether for new designs or retrofitting existing systems, the **H314003P** provides a cost-effective, long-term solution for critical protection needs. **Installation & Selection Considerations:** When selecting a fuse, professionals must consider the **maximum fault current** of the system, ambient operating temperatures, and the specific requirements of the protected circuit. The **3AB fuse’s** fast-acting characteristic makes it ideal for protecting components with low thermal mass, such as semiconductors and transformers, while its high interrupt rating ensures safety in high-energy fault scenarios. For optimal performance, always verify compatibility with the system’s voltage rating and follow manufacturer guidelines for mounting and spacing. For applications demanding **precision, durability, and compliance**, the Littelfuse 3AB Fast-Acting Ceramic Fuse stands as a benchmark in circuit protection technology. Trusted by industries worldwide, this fuse delivers the reliability and performance required to safeguard critical infrastructure and high-value equipment.
  • 3A fast-acting ceramic fuse with high interrupt ratings
  • Available in cartridge and axial lead formats for versatile mounting
  • UL Standard 248-14 certified for superior safety and performance
  • RoHS compliant and lead-free for environmental responsibility
  • Ideal for industrial, automotive, and power distribution applications

Specifications

Amperage Rating
3 AMPS
Application
NA
Brand Name
Littelfuse
Special Features
Available in cartridge and axial lead format
Standard
UL Standard 248-14
Sub Brand
314 Series
Type
Fast Acting 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.