Littelfuse 224004UP - FAST-ACTING GLASS W/ AXIAL LEADS 4A. The 2AG Fast-Acting Fuses are available in cartridge form or with axial leads. 2AG Fuses provide the same performance characteristics as their 3AG counterpart, while occupying one-third the space. Sleeved fuses are available. Features: In accordance with underwriter’s Laboratories Standard UL 248-14. Available in cartridge and axial lead form and with various forming dimensions. RoHS compliant and Lead-free.
Littelfuse

224004UP

Alternate Item Number: 0224004.VXUP

UPC: 079458112801


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Minimum Qty: 5

Multiplier: 5

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Overview

The Littelfuse 224004UP is a high-performance, space-saving 2AG fast-acting glass fuse engineered for critical circuit protection in demanding industrial and electronic environments. This particular SKU, 224004UP, features a robust 4A current rating and is designed with axial leads for versatile integration into various electronic assemblies. As part of the Littelfuse 2AG series, it delivers the same reliable performance characteristics as its larger 3AG counterparts but occupies significantly less space, making it an ideal choice for applications where board real estate is at a premium. Manufactured by Littelfuse, a globally recognized leader in circuit protection, this fuse adheres to stringent quality and safety standards. It is in accordance with Underwriters Laboratories Standard UL 248-14, ensuring dependable overcurrent protection and compliance with essential safety regulations. The glass construction provides clear visual indication of fuse status and contributes to its fast-acting interruption capabilities, crucial for safeguarding sensitive electronic components from transient overloads and short circuits. Key features and benefits of the Littelfuse 224004UP include: * **Fast-Acting Interruption:** Designed to quickly break the circuit upon detecting an overcurrent condition, minimizing damage to connected equipment. * **Compact 2AG Form Factor:** Offers a significantly smaller footprint compared to traditional 3AG fuses, allowing for denser circuit board designs and reduced overall product size. * **Axial Lead Configuration:** Facilitates easy insertion and soldering onto printed circuit boards (PCBs) or integration into wire harnesses. * **4A Current Rating:** Suitable for a wide range of applications requiring moderate current protection. * **UL 248-14 Compliance:** Meets rigorous safety standards set by Underwriters Laboratories, assuring users of its reliability and performance. * **RoHS Compliant and Lead-Free:** Aligns with environmental regulations, making it a responsible choice for global manufacturing. This fuse is an excellent solution for a variety of applications, including power supplies, consumer electronics, industrial control systems, telecommunications equipment, and medical devices where reliable and compact circuit protection is paramount. The axial lead form factor allows for direct mounting onto PCBs, simplifying assembly processes and reducing the need for additional connectors or holders. Engineers and designers trust Littelfuse for their commitment to quality, innovation, and comprehensive circuit protection solutions. The 224004UP exemplifies this dedication by providing a compact, compliant, and highly effective method for protecting valuable electronic circuits from damaging overcurrents, ensuring operational longevity and system integrity.
  • Littelfuse 2AG Fast-Acting Glass Fuse, SKU 224004UP
  • 4A Current Rating for reliable overcurrent protection
  • Axial lead configuration for easy PCB mounting
  • Compact 2AG form factor, 1/3 the size of 3AG fuses
  • UL 248-14 compliant and RoHS compliant

Specifications

Application
NA
Brand Name
Littelfuse
Special Features
Available in cartridge and axial lead form
Standard
RoHS
Sub Brand
224 Series
Type
Fast Acting Fuse
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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.

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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.