Littelfuse H314004P - FAST-ACTING TYPE CERAMIC H-PACK 4A. 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

H314004P

Alternate Item Number: 0314004.HXP

UPC: 079458923902


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Minimum Qty: 100

Multiplier: 100

*Contact for lower quantities*

Overview

The **Littelfuse H314004P** is a high-performance **fast-acting ceramic fuse** engineered for applications requiring rapid response to overcurrent conditions. Designed with a **robust ceramic body**, this fuse delivers exceptional interrupting ratings and voltage handling capabilities, making it indispensable in environments where high current loads are common. Certified to **UL Standard 248-14**, the H314004P ensures compliance with stringent safety and reliability benchmarks, while its **RoHS-compliant and lead-free construction** aligns with global environmental regulations. This fuse is available in both **cartridge and axial lead formats**, offering versatility for diverse installation requirements. The **compact design** and **various forming dimensions** allow for seamless integration into industrial control panels, power supplies, motor circuits, and automotive systems. Whether protecting sensitive electronics from transient surges or safeguarding heavy-duty machinery from fault currents, the H314004P provides **consistent, predictable performance** under demanding conditions. **Key Features & Benefits:** - **Fast-Acting Response:** Rapidly interrupts fault currents to prevent damage to downstream components, critical in applications like power conversion, lighting systems, and industrial automation. - **High Interrupting Ratings:** The ceramic body construction enables superior handling of high fault currents, reducing the risk of catastrophic failure in high-energy circuits. - **UL 248-14 Compliance:** Meets rigorous safety standards for overcurrent protection, ensuring peace of mind in regulated industries such as aerospace, medical devices, and telecommunications. - **RoHS & Lead-Free:** Aligns with sustainability initiatives and eliminates hazardous materials, making it suitable for modern, eco-conscious manufacturing environments. - **Versatile Mounting Options:** Available in cartridge and axial lead configurations with customizable forming dimensions to accommodate tight or unconventional spaces in equipment design. **Typical Applications:** - **Industrial Automation:** Protects PLCs, sensors, and motor drives from overcurrent events in manufacturing facilities. - **Power Supplies:** Safeguards transformers and rectifiers in switch-mode power supplies (SMPS) and uninterruptible power systems (UPS). - **Automotive Electronics:** Ideal for battery management systems, infotainment units, and charging circuits where space and reliability are paramount. - **Renewable Energy:** Used in solar inverters, wind turbine controllers, and energy storage systems to mitigate fault conditions. - **Telecommunications:** Ensures uptime in data centers and network infrastructure by isolating faults in power distribution units (PDUs). **Why Choose Littelfuse?** With over **100 years of innovation** in circuit protection, Littelfuse is a trusted name in industrial and electronic safety solutions. The H314004P exemplifies the company’s commitment to **durability, precision, and compliance**, backed by a global network of technical support and distribution partners. Professionals rely on Littelfuse fuses for their **predictable performance, long service life, and adherence to industry standards**, ensuring minimal downtime and maximum protection for critical systems. **Installation & Selection Considerations:** When specifying the H314004P, engineers should evaluate the **maximum fault current** of the system, ambient operating temperature, and mechanical constraints of the enclosure. The fuse’s **fast-acting characteristic** makes it ideal for protecting sensitive semiconductors, while its **ceramic construction** ensures stability in high-temperature environments. For applications requiring **time-delay functionality**, Littelfuse offers alternative series within the same family. Always consult the **UL 248-14 datasheet** and local electrical codes to confirm suitability for your specific use case. **Ordering & Availability:** The Littelfuse H314004P is available through authorized distributors worldwide, with options for bulk packaging to support high-volume production. For custom forming dimensions or alternative lead configurations, contact Littelfuse’s technical sales team to discuss tailored solutions. Trust the H314004P to deliver **reliable, high-speed overcurrent protection** where it matters most.
  • 4A fast-acting fuse with ceramic body for high interrupting ratings
  • UL 248-14 certified for safety and reliability in industrial applications
  • RoHS compliant and lead-free construction for environmental compliance
  • Available in cartridge and axial lead formats with custom forming options
  • Ideal for high-current loads in automation, power supplies, and automotive systems

Specifications

Amperage Rating
4 Amps
Application
NA
Brand Name
Littelfuse
Connection Type
Cartridge/Axial Lead
Current Rating
4 A
Material
Ceramic
Series
3AB Fast-Acting
Size
3AB
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

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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.