Littelfuse LFR60030-1SID - The new Littelfuse Class H and R 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

LFR60030-1SID

Alternate Item Number: LFR600301SID

UPC: 079458181562

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Overview

The Littelfuse Class H and R fuse blocks, identified by SKU LFR60030-1SID, represent a significant advancement in industrial electrical protection. Designed for reliability and safety, these fuse blocks offer superior performance compared to previous generations, ensuring the integrity of critical electrical systems. Littelfuse, a globally recognized leader in circuit protection, has engineered these blocks with user-friendliness and operational efficiency in mind. One of the most compelling advantages of the LFR60030-1SID is its compatibility and enhanced safety features. While Class H and Class R fuse blocks share identical physical dimensions, the Class R variant incorporates a crucial rejection feature. This intelligent design ensures that only Class R fuses can be inserted into the block. This prevents the potentially hazardous situation of a lower-rated Class H fuse being installed in a circuit requiring the higher interrupting rating and specific performance characteristics of a Class R fuse. This rejection mechanism is paramount in preventing electrical faults, mitigating arc flash risks, and ultimately improving overall system reliability and personnel safety. These fuse blocks are indispensable components in a wide array of industrial applications. They are commonly found in: * Motor control centers (MCCs) * Power distribution panels * Industrial machinery and equipment * HVAC systems * Manufacturing facilities * Any application demanding robust and reliable overcurrent protection. The robust construction of Littelfuse fuse blocks ensures their ability to withstand the demanding conditions typical of industrial environments, including vibration, temperature fluctuations, and electrical stress. The precise engineering guarantees long-lasting performance and consistent protection, minimizing downtime and maintenance requirements. When selecting fuse blocks, professionals prioritize factors such as interrupting rating, voltage rating, fuse type compatibility, and physical size. The LFR60030-1SID series addresses these needs by offering a clear distinction between Class H and Class R fuse compatibility, simplifying the selection process and reducing the potential for installation errors. By choosing Littelfuse Class H and R fuse blocks, industrial facilities benefit from: * **Enhanced Safety:** The Class R rejection feature prevents incorrect fuse installation, a critical safety measure. * **Improved Reliability:** Ensures proper fuse coordination and protection, reducing equipment damage and downtime. * **Versatile Compatibility:** Designed to work seamlessly with Littelfuse's comprehensive range of Class H and Class R fuses. * **Durable Construction:** Built to endure harsh industrial environments for extended operational life. * **Simplified Installation:** Dimensionally interchangeable design allows for easy integration into existing systems. Littelfuse's commitment to quality and innovation is evident in the LFR60030-1SID. These fuse blocks are not just components; they are integral to maintaining the safety and operational efficiency of modern industrial electrical infrastructure. Trust Littelfuse for dependable circuit protection solutions that safeguard your assets and personnel.
  • Littelfuse Class H and R fuse blocks for industrial applications
  • SKU: LFR60030-1SID
  • Class R blocks feature a rejection mechanism for Class R fuse compatibility only
  • Dimensionally identical to Class H blocks for easy integration
  • Enhances safety by preventing incorrect fuse installation and ensuring proper protection

Specifications

Brand Name
Littelfuse
Mounting Type
DIN-Rail
Poles
1P
Series
Class H and R
Series
Class H/R Fuse Blocks
Series
Class H/R
Special Features
Universal mounting holes
Standard
UL Listed and CSA Certified RoHS
Sub Brand
LFR Series
Type
Fuse Block
The Mersen FBC60J100 is a Generation 2 open-style Class J fuse block designed to accommodate Class J fuses from 0-100A at 600V. This model offers versatile connection options, including screw, pressure plate, and box connectors, compatible with a wide range of stranded or solid wire. Engineered for modern industrial applications, these Gen2 fuse blocks feature a more compact design compared to traditional offerings and are DIN-rail mountable for efficient panel assembly. The dovetail nesting capability allows for easy multipole field assembly, simplifying configuration. When paired with Mersen’s newly designed dead front covers, the fuse bases achieve an IP20 rating, enhancing safety. Manufactured in the USA, the FBC60J100 (SKU: FBC60J100) provides reliable fuse protection and connection for electrical systems.

FBC60J100

The Mersen FBC60J100 is a Generation 2 open-style Class J fuse block designed to accommodate Class J fuses from 0-100A at 600V. This model offers versatile connection options, including screw, pressure plate, and box connectors, compatible with a wide range of stranded or solid wire. Engineered for modern industrial applications, these Gen2 fuse blocks feature a more compact design compared to traditional offerings and are DIN-rail mountable for efficient panel assembly. The dovetail nesting capability allows for easy multipole field assembly, simplifying configuration. When paired with Mersen’s newly designed dead front covers, the fuse bases achieve an IP20 rating, enhancing safety. Manufactured in the USA, the FBC60J100 (SKU: FBC60J100) provides reliable fuse protection and connection for electrical systems.
SPLICER BLOCK DISTRIBUTION BLOCK 1 POLE. POWR-BLOKS power distribution blocks offer a safe, convenient way of splicing cables, providing a fixed junction tap-off point or splitting primary power into secondary circuits. LX2XXX-DIN series offers integral DIN-Rail mount and an optional hinged safety cover. Applications: Typical applications include heating, air conditioning and refrigeration systems, elevator systems, material handling equipment, control panels, motor controls, switchgear, and anywhere power needs to be distributed to more than one load.

LS1300-1

SPLICER BLOCK DISTRIBUTION BLOCK 1 POLE. POWR-BLOKS power distribution blocks offer a safe, convenient way of splicing cables, providing a fixed junction tap-off point or splitting primary power into secondary circuits. LX2XXX-DIN series offers integral DIN-Rail mount and an optional hinged safety cover. Applications: Typical applications include heating, air conditioning and refrigeration systems, elevator systems, material handling equipment, control panels, motor controls, switchgear, and anywhere power needs to be distributed to more than one load.
D4/8.SFT2.I.ADO

1SNA399777R1200

D4/8.SFT2.I.ADO

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.