Littelfuse H342028L - P MOUNT HOLDER H-PACK 28A L WASH. Panel Mount Enclosed Fuse Holders for 3AG/AB Fuses.
Littelfuse

H342028L

UPC: 079458980745

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Specification Sheet

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Minimum Qty: 100

Multiplier: 100

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Overview

The **Littelfuse H342028L Panel Mount Enclosed Fuse Holder** is a premium solution for protecting critical electrical circuits in industrial, commercial, and power distribution systems. Designed for **3AG/AB fuses** with a **28A current rating**, this H-PACK series holder delivers robust performance, durability, and ease of installation in demanding environments. Engineered by Littelfuse—a global leader in circuit protection—the H342028L ensures reliable fuse operation, minimizing downtime and enhancing system safety in applications where consistent protection is non-negotiable. **Key Features and Benefits:** - **Panel Mount Design:** The enclosed construction allows for secure mounting on control panels, distribution boards, and machinery, providing a stable and professional installation. The panel mount feature ensures easy access for fuse replacement while maintaining protection against environmental contaminants. - **High-Quality Enclosure:** The H342028L features a durable, insulated housing that safeguards against dust, moisture, and accidental contact, extending the lifespan of the fuse and the system. This makes it ideal for harsh industrial settings where exposure to debris or moisture is common. - **28A Current Rating:** With a **28A rating**, this fuse holder is optimized for medium-duty applications, including power distribution panels, motor controllers, and industrial machinery. It ensures precise fault protection while maintaining compatibility with standard 3AG/AB fuses. - **H-PACK Series Compatibility:** Part of Littelfuse’s **H-PACK series**, the H342028L is designed for seamless integration with other components in the lineup, offering consistent performance and reliability across industrial applications. The series is trusted for its standardized design and ease of maintenance. - **Easy Installation and Maintenance:** The holder’s design includes user-friendly features such as clear labeling, secure mounting hardware, and accessible fuse insertion points. This reduces installation time and simplifies fuse replacement, minimizing operational disruptions in critical systems. **Typical Applications:** The **Littelfuse H342028L** is widely used in industries where reliable circuit protection is essential. Common applications include: - **Power Distribution Systems:** Ideal for panel boards, switchgear, and distribution units where consistent fault protection is required to prevent equipment damage and ensure safety. - **Industrial Machinery:** Used in motor controllers, variable frequency drives (VFDs), and automation systems to protect against overcurrent conditions and short circuits. - **Commercial Electrical Panels:** Suitable for building management systems, lighting panels, and HVAC controls, where space efficiency and durability are critical. - **Renewable Energy Systems:** Deployed in solar inverters, wind turbine controllers, and battery management systems to safeguard sensitive electronics from transient surges and overloads. - **Telecommunications Equipment:** Ensures protection for sensitive networking hardware, servers, and data center infrastructure where uptime is paramount. **Why Choose Littelfuse?** Littelfuse is a **trusted name in circuit protection**, with over a century of innovation and expertise in designing solutions that meet the rigorous demands of industrial and commercial applications. The company’s commitment to quality, reliability, and performance has made it a preferred partner for engineers and technicians worldwide. The **H342028L** exemplifies this dedication, offering a combination of **durability, precision, and ease of use** that ensures long-term protection for critical systems. **Installation Considerations:** When installing the **Littelfuse H342028L**, professionals should ensure proper panel mounting to avoid misalignment or stress on the fuse holder. The enclosure’s design allows for secure attachment using standard hardware, and the fuse insertion point should be easily accessible for routine maintenance. For optimal performance, verify that the fuse rating matches the system’s current requirements and that the holder is compatible with the specific 3AG/AB fuse type. Regular inspections for signs of wear or contamination will further extend the holder’s operational lifespan. **Conclusion:** The **Littelfuse H342028L Panel Mount Enclosed Fuse Holder** is a high-performance, reliable solution for protecting electrical circuits in a wide range of industrial and commercial applications. With its **28A rating, durable enclosure, and easy installation**, it provides the peace of mind that comes from using a trusted product from a leader in circuit protection. Whether deployed in power distribution, machinery control, or renewable energy systems, the H342028L delivers the performance and durability required to keep operations running smoothly and safely.
  • Panel mount enclosed design for secure installation on control panels and distribution boards
  • 28A current rating optimized for medium-duty industrial applications
  • Compatible with standard 3AG/AB fuses for versatile protection
  • Durable insulated housing protects against dust, moisture, and accidental contact
  • Easy installation and maintenance with user-friendly design features

Specifications

Application
NA
Brand Name
Littelfuse
Current Rating
28 A
Mounting Type
Panel Mount
Series
H-PACK
Special Features
Withstands 15 lb in mounting torque
Standard
RoHS
Sub Brand
342 Series
Type
Fuseholder
PANEL MOUNT HOLDER FLUTED KNOB 28A. Panel Mount Enclosed Fuse Holders for 3AG/AB Fuses.

342028A

PANEL MOUNT HOLDER FLUTED KNOB 28A. Panel Mount Enclosed Fuse Holders for 3AG/AB Fuses.
P MOUNT HOLDER H-PACK 28A ASSEM. Panel Mount Enclosed Fuse Holders for 3AG/AB Fuses.

H342028A

P MOUNT HOLDER H-PACK 28A ASSEM. Panel Mount Enclosed Fuse Holders for 3AG/AB Fuses.
PANEL MOUNT HOLDER FLUTED KNOB 8 28A. Panel Mount Enclosed Fuse Holders for 3AG/AB Fuses.

342828A

PANEL MOUNT HOLDER FLUTED KNOB 8 28A. Panel Mount Enclosed Fuse Holders for 3AG/AB Fuses.
P MOUNT HOLDER H-PACK 8 28A L WASH. Panel Mount Enclosed Fuse Holders for 3AG/AB Fuses.

H342828L

P MOUNT HOLDER H-PACK 8 28A L WASH. Panel Mount Enclosed Fuse Holders for 3AG/AB Fuses.
ACS PNL MNT HLDR W/LEADS 600V 30A HI-TEK

571007PLHT

ACS PNL MNT HLDR W/LEADS 600V 30A HI-TEK
Panel mount fuseholders are available for supplementary or Class CC branch circuit protection. Class CC fuses have a rejection feature on one end cap which mates with the rejection feature of Littelfuse Class CC fuse blocks and fuseholders to prevent the installation of fuses with lower voltage ratings or interrupting ratings. Watertight version must be front panel mounted.

571RCC

Panel mount fuseholders are available for supplementary or Class CC branch circuit protection. Class CC fuses have a rejection feature on one end cap which mates with the rejection feature of Littelfuse Class CC fuse blocks and fuseholders to prevent the installation of fuses with lower voltage ratings or interrupting ratings. Watertight version must be front panel mounted.
Panel mount fuseholders are available for supplementary or Class CC branch circuit protection. Class CC fuses have a rejection feature on one end cap which mates with the rejection feature of Littelfuse Class CC fuse blocks and fuseholders to prevent the installation of fuses with lower voltage ratings or interrupting ratings. Watertight version must be front panel mounted.

571027

Panel mount fuseholders are available for supplementary or Class CC branch circuit protection. Class CC fuses have a rejection feature on one end cap which mates with the rejection feature of Littelfuse Class CC fuse blocks and fuseholders to prevent the installation of fuses with lower voltage ratings or interrupting ratings. Watertight version must be front panel mounted.
Panel mount fuseholders are available for supplementary or Class CC branch circuit protection. Class CC fuses have a rejection feature on one end cap which mates with the rejection feature of Littelfuse Class CC fuse blocks and fuseholders to prevent the installation of fuses with lower voltage ratings or interrupting ratings. Watertight version must be front panel mounted.

571RCCP

Panel mount fuseholders are available for supplementary or Class CC branch circuit protection. Class CC fuses have a rejection feature on one end cap which mates with the rejection feature of Littelfuse Class CC fuse blocks and fuseholders to prevent the installation of fuses with lower voltage ratings or interrupting ratings. Watertight version must be front panel mounted.
LPSM003ID is an indicating midget fuse dead front fuse holder with a maximum ampere rating of 30.

LPSM003ID

LPSM003ID is an indicating midget fuse dead front fuse holder with a maximum ampere rating of 30.
LPSM004 is a non-indicating midget fuse dead front fuse holder with a maximum ampere rating of 30.

LPSM004

LPSM004 is a non-indicating midget fuse dead front fuse holder with a maximum ampere rating of 30.
LPSC003 is a non-indicating Class CC dead front fuse holder with a maximum ampere rating of 30.

LPSC003

LPSC003 is a non-indicating Class CC dead front fuse holder with a maximum ampere rating of 30.
Panel mount fuseholders are available for supplementary or Class CC branch circuit protection. Class CC fuses have a rejection feature on one end cap which mates with the rejection feature of Littelfuse Class CC fuse blocks and fuseholders to prevent the installation of fuses with lower voltage ratings or interrupting ratings. Watertight version must be front panel mounted.

571007

Panel mount fuseholders are available for supplementary or Class CC branch circuit protection. Class CC fuses have a rejection feature on one end cap which mates with the rejection feature of Littelfuse Class CC fuse blocks and fuseholders to prevent the installation of fuses with lower voltage ratings or interrupting ratings. Watertight version must be front panel mounted.

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.