Littelfuse H342004L - P MOUNT HOLDER H-PACK 4A L WASH. Panel Mount Enclosed Fuse Holders for 3AG/AB Fuses.
Littelfuse

H342004L

UPC: 079458980639

Documents & Media
Specification Sheet

Contact for Pricing

Minimum Qty: 100

Multiplier: 100

*Contact for lower quantities*

Overview

The **Littelfuse H342004L Panel Mount Enclosed Fuse Holder** is a robust, high-performance solution engineered for **3AG/AB fuses** with a **4A current rating**, part of the trusted **H-PACK Series**. Designed for **panel mount installation**, this enclosed fuse holder delivers exceptional reliability, durability, and ease of use in demanding industrial and commercial electrical systems. Whether deployed in power distribution panels, control systems, or machinery protection circuits, the H342004L ensures consistent fuse retention and circuit safety while simplifying maintenance and replacement. As a **panel mount enclosed fuse holder**, the H342004L is ideal for applications where space efficiency, secure mounting, and protection against environmental contaminants are critical. Its **enclosed design** safeguards the fuse from dust, moisture, and mechanical damage, extending operational lifespan and reducing downtime in harsh operating environments. The **H-PACK Series** is renowned for its compatibility with standard **3AG (1.25x0.25 inch) and AB (1.36x0.4 inch) fuses**, making it a versatile choice for engineers and technicians across multiple industries, including **manufacturing, automation, telecommunications, and renewable energy systems**. Key features of the **Littelfuse H342004L** include: - **Panel mount design** for secure, space-saving installation in control panels and distribution boards. - **Enclosed construction** to protect fuses from environmental hazards, ensuring long-term reliability. - **4A current rating** for precise overcurrent protection in low-to-moderate power applications. - **Compatibility with 3AG/AB fuses**, offering flexibility for retrofitting or new installations. - **Durable materials** designed to withstand vibration, temperature fluctuations, and electrical stress. Industries such as **automotive manufacturing, industrial automation, HVAC systems, and data centers** rely on Littelfuse’s **H-PACK Series** for its proven performance and adherence to stringent safety standards. Professionals select the H342004L for its **ease of installation**, **minimal maintenance requirements**, and **compliance with UL and IEC safety certifications**. The fuse holder’s **screw-terminal or quick-connect options** (depending on configuration) further streamline wiring, reducing installation time and potential errors. Littelfuse, a global leader in circuit protection solutions, has built a reputation for innovation and reliability since its founding in 1927. The company’s **H-PACK Series** fuse holders are a testament to its commitment to delivering high-quality, cost-effective protection components that meet the rigorous demands of modern electrical systems. By choosing the **H342004L**, engineers and facility managers gain peace of mind knowing they are using a product that aligns with **industry best practices** and **regulatory compliance**. For applications requiring **high-integrity fuse protection** in compact or high-vibration environments, the **Littelfuse H342004L Panel Mount Enclosed Fuse Holder** stands out as a dependable choice. Its **rugged construction**, **easy fuse replacement**, and **broad compatibility** make it an essential component in any **electrical protection strategy**. Trust Littelfuse to provide solutions that not only meet but exceed performance expectations, ensuring the safety and efficiency of your critical systems.
  • Panel mount enclosed design for secure installation in control panels
  • Compatible with 3AG/AB fuses for versatile protection
  • 4A current rating for precise overcurrent protection
  • Enclosed construction protects against dust, moisture, and mechanical damage
  • Part of Littelfuse’s trusted H-PACK Series for industrial reliability

Specifications

Application
NA
Brand Name
Littelfuse
Connection Type
Screw Terminal or Quick-Connect
Current Rating
4 A
Material
L Wash
Mounting Type
Panel Mount
Series
H-PACK
Special Features
Withstands 15 lb in mounting torque
Standard
RoHS
Sub Brand
342 Series
Type
Fuseholder
ACS SHOCK-SAFE FUSEHLDR. Designed to eliminate electrical shock as defined by IEC standards 60065 and 60127, these panel-mount fuses holders offer a wide variety of options. This allows for inventory reduction and versatility. Anti-tease feature eliminates circuit interruption when knob is accidentally depressed Five fuse holder types for maximum flexibility. Two knob styles— screwdriver slot and fingergrip. Drip proof option available on screwdriver slot knob style. Two terminal choices depending on application.

H345933A

ACS SHOCK-SAFE FUSEHLDR. Designed to eliminate electrical shock as defined by IEC standards 60065 and 60127, these panel-mount fuses holders offer a wide variety of options. This allows for inventory reduction and versatility. Anti-tease feature eliminates circuit interruption when knob is accidentally depressed Five fuse holder types for maximum flexibility. Two knob styles— screwdriver slot and fingergrip. Drip proof option available on screwdriver slot knob style. Two terminal choices depending on application.
Fuse Holder GPM-B 600V CC

18813000026

Fuse Holder GPM-B 600V CC
Fuse Holder UltraSafe™ 800VAC 800VDC UL Fuse size 27x60 1-Pole Visual Indicator Microswitch Faston Lugs IP20

R227600

Fuse Holder UltraSafe™ 800VAC 800VDC UL Fuse size 27x60 1-Pole Visual Indicator Microswitch Faston Lugs IP20
PRIMARY FUSE KIT, CLASS CC, 2POLE

FKTP-1001

PRIMARY FUSE KIT, CLASS CC, 2POLE
Dead front fuse holder front operated 22x58 4P 125A for RMS100

57035016

Dead front fuse holder front operated 22x58 4P 125A for RMS100
Control Transformer Accessories - Fuse Kit, 250 V, 5.0A

EC5

Control Transformer Accessories - Fuse Kit, 250 V, 5.0A
FUSE HOLDER KIT, 1 PER, 153D SERIES

FH_KIT1

FUSE HOLDER KIT, 1 PER, 153D SERIES

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.