Littelfuse 348004 - 3AGSNAP MOUNT FUSEHLDR BLU CAP/KNOB ONLY. For 3AB/3AG Type Fuses. Rated at 15 amps for any voltage up to 250 volts. Low profile design. Blown fuse indicator.
Littelfuse

348004

Alternate Item Number: 03480004Z

UPC: 079458107555


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Overview

The Littelfuse 3AGSNAP Blue Snap-Mount Fuse Holder (SKU: 348004) is a premium-quality, low-profile fuse holder engineered for 3AB/3AG type fuses in industrial and commercial electrical systems. Designed with a durable polyamide (poly) construction and a distinctive blue cap/knob, this fuse holder delivers reliable circuit protection up to 15 amps at 250 volts. Its snap-mount design ensures quick, secure installation without the need for additional hardware, making it ideal for high-density control panels, power supplies, and electronic equipment where space is at a premium. A key feature of the 3AGSNAP series is the integrated blown fuse indicator, which provides immediate visual confirmation of a blown fuse—reducing downtime and simplifying maintenance in critical applications. The low-profile design minimizes protrusion from mounting surfaces, enhancing airflow and reducing the risk of accidental contact or damage in tight enclosures. This fuse holder is rated for continuous operation in harsh environments, withstanding typical industrial temperatures and vibration levels. Professionals across industries such as automation, telecommunications, HVAC, and renewable energy rely on Littelfuse fuse holders for their consistent performance and long service life. The 3AGSNAP series is part of Littelfuse’s trusted 3AG family, a benchmark in fuse protection for over six decades. Whether used in motor controllers, battery management systems, or test equipment, this fuse holder ensures dependable overcurrent protection while facilitating rapid fuse replacement. Installation is straightforward: simply snap the holder into a 0.187-inch (3/16-inch) diameter mounting hole, insert the fuse, and secure the blue cap/knob. The poly material resists corrosion and UV degradation, ensuring reliability in both indoor and outdoor installations. For OEMs and panel builders, the 3AGSNAP fuse holder offers a cost-effective, space-saving solution that meets UL and CSA safety standards, providing peace of mind in mission-critical applications. Choose Littelfuse for uncompromising quality in circuit protection. The 3AGSNAP Blue Fuse Holder is the smart choice for engineers and technicians who demand durability, ease of use, and superior performance in their electrical systems.
  • Rated for 15 amps at 250 volts for robust circuit protection
  • Low-profile snap-mount design with durable poly construction
  • Built-in blown fuse indicator for quick troubleshooting
  • Snap-in mounting for fast, tool-free installation
  • Ideal for control panels, power supplies, and industrial equipment

Specifications

Brand Name
Littelfuse
Color
Blue
Current Rating
15 A
Material
Polyamide
Material
Polyamide (Poly)
Mounting Type
Snap-Mount
Poles
1
Series
3AGSNAP
Size
3/16-inch diameter mounting hole
Special Features
RoHS compliant and
Sub Brand
332 Series
Type
Cartridge
Voltage Rating
250 V
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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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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.