Littelfuse H3455LF4A - ACS INTL SHOCKSAFE 5X20MM FUSEHLDR LF4A. International Shock-Safe Panel Mount Fuseholder for 5x20mm Fuses.
Littelfuse

H3455LF4A

UPC: 079458981889


Documents & Media
Specification Sheet

Contact for Pricing

Minimum Qty: 100

Multiplier: 100

*Contact for lower quantities*

Overview

The **Littelfuse H3455LF4A** is a **Shock-Safe Panel Mount Fuseholder** engineered for **5x20mm fuses**, delivering uncompromising reliability in demanding industrial environments. Designed to meet the rigorous demands of modern electrical systems, this fuseholder provides a secure and tamper-resistant mounting solution that protects personnel and equipment from accidental dislodging or electrical hazards. As part of Littelfuse’s trusted **International Shock-Safe** series, the H3455LF4A combines robust construction with precision engineering to ensure long-term performance in harsh operating conditions. **Key Features & Technical Advantages** The H3455LF4A is built for **industrial-grade durability**, featuring a **shock-safe design** that minimizes the risk of fuse ejection during operation—a critical safety consideration in high-vibration or high-impact applications. Its **panel mount configuration** allows for secure installation in control panels, machinery enclosures, and power distribution systems, where stability and accessibility are paramount. The fuseholder is **compatible with 5x20mm fuses** from Littelfuse and other major brands, offering flexibility for engineers and technicians who require standardized, interchangeable components. **Industry Applications & Use Cases** This fuseholder is ideally suited for **industrial automation, motor control centers, renewable energy systems, and HVAC equipment**, where reliable overcurrent protection is essential. In **manufacturing plants**, it safeguards sensitive electronics from transient surges, while in **power distribution networks**, it ensures compliance with safety standards by preventing accidental contact with live components. The **shock-safe design** also makes it a preferred choice for **mining, oil & gas, and transportation sectors**, where equipment is exposed to extreme conditions and regulatory compliance is non-negotiable. **Installation & Maintenance Considerations** Engineered for **ease of installation**, the H3455LF4A features a **snap-in or screw-mount design** (depending on configuration) that simplifies retrofitting into existing systems. Its **modular construction** allows for quick fuse replacement without specialized tools, reducing downtime in critical applications. For maintenance teams, the **color-coded or labeled design** (where applicable) enhances traceability, ensuring that technicians can rapidly identify and service components in complex electrical panels. **Why Choose Littelfuse?** Littelfuse is a **global leader in circuit protection**, with over a century of innovation in fuse technology and electrical safety solutions. The company’s **Shock-Safe series** is trusted by engineers worldwide for its **certified safety compliance** (e.g., UL, IEC, and CE standards) and **field-proven reliability**. By selecting the **H3455LF4A**, professionals gain access to a **high-performance, low-maintenance** fuseholder that aligns with Littelfuse’s commitment to **safety, durability, and technical excellence**. **Ideal for:** - Control panels and switchgear - Industrial machinery and automation systems - Power distribution units (PDUs) - Renewable energy inverters - Transportation and heavy equipment
  • Shock-safe design prevents accidental fuse ejection
  • Panel mount for secure installation in control systems
  • Compatible with 5x20mm fuses from Littelfuse and major brands
  • Ideal for industrial automation, power distribution, and machinery
  • Easy installation and maintenance with modular design

Specifications

Brand Name
Littelfuse
Connection Type
Panel Mount
Material
Industrial-grade plastic/polymer
Mounting Type
Panel Mount
Mounting Type
Snap-in or Screw-Mount
Series
LF4A
Series
International Shock-Safe
Size
5x20mm
Size
5x20mm (fuse size)
Special Features
See in the web sheet
Standard
UL Listed CSA
Sub Brand
Shock-Safe
Type
Panel Fuseholder
ACS INTL SHOCK-SAFE 3AG FUSEHLDR HS3N. International Shock-Safe Panel Mount Fuseholder for 3AG/3AB Fuses.

H3453HS3N

ACS INTL SHOCK-SAFE 3AG FUSEHLDR HS3N. International Shock-Safe Panel Mount Fuseholder for 3AG/3AB Fuses.
ACS INTL SHOCK-SAFE 3AG FUSEHLDR LF3A. International Shock-Safe Panel Mount Fuseholder for 3AG/3AB Fuses.

H3453LF3A

ACS INTL SHOCK-SAFE 3AG FUSEHLDR LF3A. International Shock-Safe Panel Mount Fuseholder for 3AG/3AB Fuses.
ACS INTL SHOCK-SAFE 3AG FUSEHLDR LS2NP. International Shock-Safe Panel Mount Fuseholder for 3AG/3AB Fuses.

H3453LS2NP

ACS INTL SHOCK-SAFE 3AG FUSEHLDR LS2NP. International Shock-Safe Panel Mount Fuseholder for 3AG/3AB Fuses.

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.