Littelfuse LFH600301CID - 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

LFH600301CID

Alternate Item Number: LFH600301CID

UPC: 079458181135

Documents & Media
BrochureSpecification Sheet

Contact for Pricing

Overview

The Littelfuse Class H Fuse Block, model LFH600301CID, represents a significant advancement in industrial circuit protection technology. Engineered by Littelfuse, a globally recognized leader in circuit protection solutions, this fuse block is designed to offer superior performance, enhanced reliability, and robust safety for a wide array of demanding industrial applications. Its design prioritizes ease of use and long-term operational integrity, making it a preferred choice for engineers and maintenance professionals. This Class H fuse block is specifically designed to accommodate Class H fuses, ensuring that only fuses of the correct class and interrupting rating can be installed. This feature is critical for maintaining the integrity of the protection scheme and preventing potential equipment damage or safety hazards that could arise from incorrect fuse application. While Class H and Class R fuse blocks share identical physical dimensions, enabling straightforward retrofitting and compatibility with existing infrastructure, it's important to note the distinction in functionality. Class R fuse blocks incorporate a crucial rejection feature, a safety mechanism that physically prevents the insertion of non-Class R fuses. This ensures that only Class R fuses can be utilized in Class R blocks, thereby guaranteeing the intended level of protection. The LFH600301CID is built to withstand the rigorous conditions typically encountered in industrial environments. Its construction materials and design ensure durability and resistance to factors such as vibration, temperature fluctuations, and electrical stress. This robust build quality translates into extended service life and reduced maintenance requirements, contributing to lower overall operational costs. The primary function of this fuse block is to serve as a reliable interface for Class H fuses, providing a secure connection point and facilitating the safe and efficient interruption of electrical circuits in the event of overcurrent or short-circuit conditions. Key advantages of the Littelfuse Class H Fuse Block LFH600301CID include: * **Reliable Circuit Interruption:** Ensures safe and effective disconnection of power during fault conditions. * **Enhanced Safety:** Designed to accept only Class H fuses, preventing misapplication and ensuring proper protection levels. * **Durable Construction:** Built with high-quality materials for longevity in harsh industrial settings. * **Broad Compatibility:** Shares dimensions with Class R fuse blocks, offering flexibility in installation and upgrades. * **Trusted Manufacturer:** Backed by the reputation and quality assurance of Littelfuse. Typical applications for the Littelfuse Class H Fuse Block LFH600301CID span across various industrial sectors, including manufacturing plants, power distribution systems, motor control centers, and heavy machinery operations. It is an essential component in protecting critical electrical equipment such as motors, transformers, and control panels from damaging electrical surges. The selection of a fuse block is a fundamental aspect of electrical system design, directly impacting the safety and reliability of the entire installation. Professionals choose Littelfuse for their commitment to innovation, quality, and comprehensive circuit protection solutions. The LFH600301CID exemplifies this commitment, offering a dependable and effective solution for safeguarding industrial electrical systems.
  • Littelfuse Class H Fuse Block for industrial circuit protection.
  • Model LFH600301CID ensures reliable overcurrent and short-circuit interruption.
  • Designed for Class H fuses, promoting correct application and safety.
  • Durable construction suitable for demanding industrial environments.
  • Shares dimensions with Class R fuse blocks for installation flexibility.

Specifications

Brand Name
Littelfuse
Series
Class H
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.