Littelfuse LFH606003C - The new Littelfuse Class H blocks offer many advantages over previous generations that are noted in the features and benefits section. Class H and Class R fuse blocks are dimensionally the same, but Class R blocks incorporate a rejection feature, which only allows Class R fuses to be inserted.
Littelfuse

LFH606003C

Alternate Item Number: LFH606003C

UPC: 079458186604

Documents & Media
BrochureTechnical DrawingSpecification Sheet

Contact for Pricing

Overview

The **Littelfuse Class H Fuse Block (LFH606003C)** is a high-performance industrial-grade solution designed to deliver reliable circuit protection in demanding environments. Engineered by Littelfuse, a global leader in electrical protection solutions, this fuse block ensures optimal safety and operational efficiency for critical electrical systems. The **LFH606003C** is specifically designed for use with **Class H fuses**, providing robust protection against overloads, short circuits, and other electrical faults that can compromise system integrity. **Key Features and Benefits:** - **Dimensional Compatibility with Class R Blocks:** The **LFH606003C** shares the same footprint as Class R fuse blocks, offering flexibility in system design without requiring additional space or modifications. This compatibility simplifies upgrades and replacements in existing installations. - **Superior Circuit Protection:** Class H fuse blocks are engineered to interrupt high fault currents effectively, ensuring rapid response to electrical faults. This minimizes downtime and reduces the risk of equipment damage, making it ideal for industrial applications where reliability is paramount. - **High-Quality Construction:** Built with durable materials, the **LFH606003C** is designed to withstand harsh industrial environments, including exposure to dust, moisture, and temperature fluctuations. This ensures long-term performance and reduces maintenance requirements. - **Enhanced Safety and Compliance:** While Class R blocks include a rejection feature to prevent incorrect fuse installation, the **LFH606003C** is optimized for Class H fuses, which are widely used in industrial applications for their balance of performance and cost-effectiveness. This ensures adherence to safety standards and regulatory requirements. - **Easy Installation and Maintenance:** The **LFH606003C** is designed for straightforward installation and servicing, with clear labeling and accessible terminals. This reduces installation time and simplifies fuse replacement, enhancing operational efficiency. **Typical Applications:** The **Littelfuse Class H Fuse Block (LFH606003C)** is widely used in a variety of industrial applications, including: - **Manufacturing Facilities:** Protecting machinery and production lines from electrical faults to ensure continuous operation. - **Commercial Buildings:** Safeguarding HVAC systems, lighting panels, and other critical electrical infrastructure. - **Renewable Energy Systems:** Providing reliable protection for solar inverters, wind turbines, and battery storage systems. - **Transportation and Infrastructure:** Ensuring safety in rail systems, airports, and other high-traffic facilities where electrical reliability is essential. - **Data Centers:** Protecting sensitive electronic equipment from power surges and faults to maintain uptime and data integrity. **Why Choose Littelfuse?** Littelfuse is a trusted name in electrical protection, with over a century of innovation and expertise in developing solutions that meet the evolving needs of industrial and commercial markets. The **LFH606003C** is backed by Littelfuse’s commitment to quality, reliability, and customer support, ensuring that professionals can depend on it for critical applications. Whether you’re designing a new system or upgrading an existing one, the **Littelfuse Class H Fuse Block (LFH606003C)** provides the performance, safety, and durability required for industrial-grade circuit protection. **Installation and Selection Considerations:** When selecting a fuse block for an industrial application, it’s essential to consider factors such as fault current ratings, environmental conditions, and compliance with industry standards. The **LFH606003C** is designed to meet these requirements, offering a balance of performance and cost-effectiveness. For professionals, this means reduced risk of system failures, lower maintenance costs, and peace of mind knowing that their electrical infrastructure is protected by a trusted brand. **Conclusion:** The **Littelfuse Class H Fuse Block (LFH606003C)** is a reliable, high-performance solution for industrial circuit protection. With its advanced features, durable construction, and compatibility with Class H fuses, it is an ideal choice for professionals seeking to enhance the safety and efficiency of their electrical systems. Trust Littelfuse to deliver the protection your applications demand.
  • Dimensional compatibility with Class R fuse blocks for flexible system design
  • Superior circuit protection against overloads and short circuits
  • High-quality construction for durability in harsh industrial environments
  • Easy installation and maintenance for reduced downtime
  • Trusted by professionals for critical industrial applications

Specifications

Brand Name
Littelfuse
Special Features
Universal mounting holes
Standard
UL Listed CSA Recognized
Sub Brand
LF Series Fuseblock
Type
Class H Fuseblock
Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount

GPM-SRR90

Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount
BB18 is a three-phase busbar terminal power feed lug, which is intended for use with LPSM/LPSC series fuse holders. See datasheet for more detailed specifications.

BB18

BB18 is a three-phase busbar terminal power feed lug, which is intended for use with LPSM/LPSC series fuse holders. See datasheet for more detailed specifications.
D4/8.SFT2.I.ADO

1SNA399777R1200

D4/8.SFT2.I.ADO
2000W 5V 150A 24V 10A 2-12V 1P

SH20-P3T53J4

2000W 5V 150A 24V 10A 2-12V 1P

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.