Littelfuse H324003P - FAST-ACTING CER W/ AXIAL 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

H324003P

Alternate Item Number: 0324003.HXP

UPC: 079458928259


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Minimum Qty: 100

Multiplier: 100

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Overview

The **Littelfuse 3AB Fast-Acting Ceramic Fuse (SKU: H324003P)** is a high-performance overcurrent protection solution engineered for demanding industrial and electronic applications where rapid response and robust durability are critical. Designed with a premium ceramic body construction, this 3-ampere axial lead fuse delivers exceptional interrupting ratings and voltage performance, making it ideal for high-current load scenarios where precision and reliability cannot be compromised. **Key Features and Benefits:** - **Ceramic Body Construction:** The ceramic material enables higher interrupting ratings and voltage ratings compared to standard glass or plastic fuses, ensuring superior performance in high-energy circuits. This construction also enhances thermal stability and mechanical strength, reducing the risk of failure under extreme conditions. - **UL Standard 248-14 Compliance:** Certified to meet the stringent requirements of UL Standard 248-14, this fuse undergoes rigorous testing for safety, performance, and reliability. Professionals in industrial, automotive, and power electronics sectors trust UL-certified components for mission-critical applications. - **Axial Lead Configuration:** The axial lead design simplifies installation in printed circuit boards (PCBs), power supplies, and control panels, offering flexibility in mounting and wiring configurations. This format is particularly advantageous in compact or densely populated electronic assemblies. - **Versatile Form Factors:** Available in both cartridge and axial lead formats, the 3AB series accommodates diverse design requirements. The axial lead version (H324003P) is optimized for direct soldering or insertion into fuse holders, while the cartridge variants provide additional mounting options for industrial enclosures. - **RoHS Compliance and Lead-Free:** Manufactured in accordance with RoHS directives, this fuse is free of hazardous substances such as lead, mercury, and cadmium. This commitment to environmental responsibility aligns with global sustainability goals and ensures compliance with international regulations for electronic waste management. **Typical Applications:** This Littelfuse 3AB fuse is widely deployed in applications where high current loads and transient surges pose a risk to sensitive components. Common use cases include: - **Power Supplies and Converters:** Protecting DC-DC converters, AC-DC power supplies, and battery management systems from overcurrent conditions that could damage downstream electronics. - **Industrial Control Systems:** Safeguarding PLCs, motor drives, and automation equipment against fault currents in manufacturing, robotics, and process control environments. - **Automotive Electronics:** Providing circuit protection in vehicle charging systems, infotainment modules, and powertrain controls, where reliability and fast response are paramount. - **Telecommunications Equipment:** Shielding network routers, switches, and base stations from power surges and short circuits to maintain uninterrupted connectivity. - **Renewable Energy Systems:** Ensuring safe operation in solar inverters, wind turbine controllers, and energy storage systems by limiting fault currents and preventing catastrophic failures. **Why Choose Littelfuse?** With over a century of innovation in circuit protection, Littelfuse is a globally recognized leader in developing solutions that enhance the safety and reliability of electrical systems. The 3AB series exemplifies the company’s commitment to engineering excellence, offering: - **Proven Reliability:** Decades of field experience and continuous product refinement ensure that Littelfuse fuses deliver consistent performance in the most demanding environments. - **Comprehensive Support:** Access to technical documentation, application notes, and expert guidance helps engineers and procurement professionals select the optimal fuse for their specific requirements. - **Global Availability:** Littelfuse’s extensive distribution network ensures timely delivery of products, reducing lead times and minimizing supply chain disruptions for industrial and commercial customers. **Installation and Selection Considerations:** When integrating the H324003P fuse into a system, professionals should evaluate the following factors to ensure optimal protection and longevity: - **Current Rating:** The 3A rating is suitable for circuits where the continuous operating current is below this threshold, but transient surges may occasionally exceed it. Always verify the fuse’s interrupting rating against the prospective fault current of the system. - **Voltage Rating:** Ensure the fuse’s voltage rating exceeds the maximum system voltage to prevent arcing or failure during fault conditions. - **Mounting and Forming:** The axial lead design allows for easy integration into PCBs or fuse holders. Consider the physical dimensions and spacing requirements to avoid interference with adjacent components. - **Environmental Conditions:** While the ceramic construction provides excellent thermal and mechanical stability, evaluate the operating temperature range and potential exposure to moisture or contaminants in the application environment. For engineers and procurement specialists seeking a high-performance, UL-certified fuse for high-current applications, the Littelfuse 3AB Fast-Acting Ceramic Fuse (H324003P) delivers unmatched protection, durability, and compliance with industry standards. Its combination of rapid response, robust construction, and environmental responsibility makes it a trusted choice for modern electrical and electronic systems.
  • 3A fast-acting ceramic fuse with axial lead configuration
  • Ceramic body construction for higher interrupting and voltage ratings
  • UL Standard 248-14 certified for safety and reliability
  • RoHS compliant and lead-free for environmental responsibility
  • Versatile mounting options including cartridge and axial lead formats

Specifications

Amperage Rating
3 AMPS
Application
electronic equipment & appliances
Brand Name
Littelfuse
Connection Type
Axial Lead
Current Rating
3 A
Material
Ceramic
Series
Fast-Acting
Size
3AB
Special Features
Fast-Acting
Standard
UL Standard 248-14
Sub Brand
324 Series
Type
3AB Fast-Acting
Package Dimensions (L x W x H)
1.25 IN x 0.25 IN x 0.25 IN
Package Dimensions (L x W x H)
3.175 cm x 6.35 mm x 6.35 mm
Package Weight (Imperial)
0.150 L
Package Weight (Metric)
0.068 kg
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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.