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Littelfuse H3453LS7A - ACS INTL SHOCK-SAFE 3AG FUSEHLDR LS7A. International Shock-Safe Panel Mount Fuseholder for 3AG/3AB Fuses.

Littelfuse H3453LS7A ACS INTL SHOCK-SAFE 3AG FUSEHLDR LS7A. International Shock-Safe Panel Mount Fuseholder…

UPC: 079458981537


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Specification Sheet

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Minimum Qty: 100

Multiplier: 100

*Contact for lower quantities*

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The Littelfuse H3453LS7A is a shock-safe, panel-mount fuseholder engineered for 3AG and 3AB fuse compatibility in industrial electrical systems. This fuseholder is part of Littelfuse’s ACS International series, designed to meet stringent safety requirements by preventing accidental contact with live fuse terminals—a critical feature in high-risk industrial environments. The panel-mount configuration ensures secure installation in control panels, machinery enclosures, and power distribution units, enabling straightforward integration and maintenance. This fuseholder is built for durability, with materials selected to withstand environmental factors and mechanical stress common in industrial settings. The LS7A series is recognized for its reliability, making the H3453LS7A an ideal choice for applications where electrical safety and operational continuity are priorities. Its primary function is to house and protect fuses, acting as a vital safeguard against overcurrent and short-circuit conditions, thereby preventing equipment damage and reducing fire hazards. Key applications include manufacturing, automation, telecommunications, and energy systems, where reliable circuit protection is essential. The H3453LS7A supports standard 3AG/3AB fuses, ensuring compatibility with widely available fuse types. Its intuitive design simplifies fuse replacement, minimizing downtime and enhancing operational efficiency. For engineers and technicians seeking a dependable, safety-focused fuseholder, the Littelfuse H3453LS7A delivers consistent performance and adherence to industrial safety standards.
  • Shock-safe design prevents accidental contact with live fuse terminals
  • Panel mount configuration for secure installation in control panels and enclosures
  • Compatible with standard 3AG and 3AB fuses
  • Durable construction for long-term industrial reliability
  • Simplifies fuse replacement to reduce downtime

Specifications

Brand Name
Littelfuse
Mounting Type
Panel Mount
Series
LS7A
Size
3AG/3AB
Special Features
See in the web sheet
Standard
UL Listed CSA
Sub Brand
Shock-Safe
Type
Panel Fuseholder
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Frequently Asked Questions

What fuse sizes are compatible with this fuseholder?

This fuseholder is compatible with 3AB, 3AG, 5x20mm, and 2AG fuse sizes.

What is the operating temperature range for this fuseholder?

The fuseholder can operate in ambient temperatures ranging from -40ºC to +85ºC.

What is the purpose of the anti-tease feature?

The anti-tease feature eliminates circuit interruption when the knob is accidentally depressed.

What terminal styles are available for this fuseholder?

Available terminal styles include dual-purpose for soldering or 3/16” NEMA quick connect, and ¼” NEMA/DIN quick connect.

What is the insulation resistance of the fuseholder?

The insulation resistance is a minimum of 10,000 megohms at 500 VDC.

What is the contact resistance of the fuseholder?

The contact resistance is less than .005 ohm average at currents up to 1 ampere.

What materials are the molded parts made from?

The body material is black glass-filled thermoplastic (UL 94V0).

What knob materials are available for this fuseholder?

Knob material is grey, blue, or black glass-filled thermoplastic (UL94 V-0).

What agency approvals are listed for this fuseholder?

Agency approvals include E14721, 7316, and 40001642, with specific amperage and voltage ratings listed.

What panel thickness can the threaded style fuseholders accommodate?

Threaded style fuseholders can accommodate panel thicknesses from .032 inches min. to .310 inches max.

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.