Littelfuse LFR60030-3SID - 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

LFR60030-3SID

Alternate Item Number: LFR600303SID

UPC: 079458181500

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Overview

The Littelfuse Class H and R fuse blocks, specifically the LFR60030-3SID model, represent a significant advancement in electrical protection for demanding industrial environments. Designed for superior safety and operational reliability, these fuse blocks are engineered to house both Class H and Class R fuses, offering flexibility while ensuring proper application. A key innovation in the Class R variants, including this model, is the integrated rejection feature. This critical safety mechanism is meticulously designed to prevent the insertion of incorrect fuse classes, thereby mitigating the risk of system damage or hazardous conditions arising from misapplication. This ensures that only the appropriately rated Class R fuses can be installed, providing a crucial layer of protection for sensitive equipment and personnel. Dimensionally, these new generation fuse blocks maintain parity with their predecessors, facilitating a seamless upgrade path for existing installations. This compatibility simplifies retrofitting and ensures that no modifications to existing panel layouts or wiring are necessary. The robust construction and high-quality materials employed by Littelfuse guarantee exceptional durability and long-term performance, even under the most challenging operating conditions. These fuse blocks are ideal for a wide array of industrial applications, including but not limited to: * **Industrial Machinery:** Protecting motors, control circuits, and power supplies in manufacturing plants. * **Power Distribution Systems:** Ensuring the integrity of electrical distribution panels and sub-panels. * **Control Panels:** Safeguarding sensitive electronic components and control logic. * **HVAC Systems:** Providing reliable overcurrent protection for large commercial units. * **Renewable Energy Infrastructure:** Protecting inverters and power conditioning equipment. Littelfuse is a globally recognized leader in circuit protection, and their Class H and R fuse blocks exemplify this commitment to quality and innovation. The LFR60030-3SID model, with its 3-pole configuration and 30A rating at 600V, is engineered to meet stringent industry standards and deliver consistent, dependable protection. Professionals rely on Littelfuse for their unwavering dedication to safety, performance, and product longevity. Choosing this fuse block means investing in a solution that minimizes downtime, enhances operational safety, and provides peace of mind in critical electrical systems.
  • Advanced safety with Class R fuse rejection feature
  • Dimensionally compatible with previous generation fuse blocks
  • Robust construction for demanding industrial environments
  • 3-pole configuration for comprehensive circuit protection
  • Trusted Littelfuse quality and reliability

Specifications

Brand Name
Littelfuse
Connection Type
Not explicitly stated
Current Rating
30 A
Material
High-quality materials
Material
Not explicitly stated
Poles
3
Poles
3-pole
Series
Class H and R fuse blocks
Series
Class H/R Fuse Block
Size
Not explicitly stated
Special Features
Universal mounting holes
Standard
UL Listed and CSA Certified RoHS
Sub Brand
LFR Series
Type
Fuse Block
Voltage Rating
600 V
Fuse Block 600VAC 600VDC Class H/K 30A 3-Pole Screw with Reinforced Clip

60318

Fuse Block 600VAC 600VDC Class H/K 30A 3-Pole Screw with Reinforced Clip
600V CLASS H BLOCK 30A 3 POLE NON-ID

LFH60030-3C

600V CLASS H BLOCK 30A 3 POLE NON-ID
DR4/8 SF DIN2

1SNA110368R1200

DR4/8 SF DIN2

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.